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Isoforms Recommended:	Topo I

Results for "

Topoisomerase I

" in MedChemExpress (MCE) Product Catalog:

By Targets:	Topoisomerase (299) ADC Antibody (6) ADC Payload (52) AMPK (3) Androgen Receptor (3) Antibiotic (26) Antibody-Drug Conjugates (ADCs) (18) Apoptosis (66) ATM/ATR (1) Autophagy (27) Bacterial (22) Bcl-2 Family (8) Biochemical Assay Reagents (2) Btk (1) c-Met/HGFR (1) Caspase (8) CCR (1) CD276/B7-H3 (3) Checkpoint Kinase (Chk) (1) Cholinesterase (ChE) (3) Claudin (1) Cuproptosis (1) Cytochrome P450 (2) DNA Alkylator/Crosslinker (2) DNA-PK (1) DNA/RNA Synthesis (32) Drug Derivative (10) Drug Intermediate (7) Drug Isomer (1) Drug Metabolite (5) Drug-Linker Conjugates for ADC (63) EGFR (6) Endogenous Metabolite (4) Estrogen Receptor/ERR (3) Fatty Acid Synthase (FASN) (1) Fluorescent Dye (3) Folate Receptor (FR) (1) Fungal (8) GLUT (2) Glutathione Peroxidase (1) Glutathione S-transferase (1) HBV (3) HDAC (2) Histone Methyltransferase (1) HIV (6) HSV (1) IAP (1) IKK (1) Indoleamine 2,3-Dioxygenase (IDO) (2) Influenza Virus (5) Isotope-Labeled Compounds (16) Kinesin (1) Liposome (3) MDM-2/p53 (9) MicroRNA (3) Microtubule/Tubulin (14) Mitochondrial Metabolism (2) Mitophagy (6) Mixed Lineage Kinase (1) Mucin (1) Necroptosis (1) NF-κB (7) NO Synthase (1) Orthopoxvirus (2) P-glycoprotein (1) Parasite (14) PARP (1) PEPCK (1) Peptide-Drug Conjugates (PDCs) (1) PI3K (1) Proteasome (3) RAD51 (1) Reactive Oxygen Species (ROS) (8) Reference Standards (29) RIP kinase (1) Sodium Channel (1) Survivin (1) TMV (1) TROP2 (3) Wnt (1) α-synuclein (1) β-catenin (1)
By Research Areas:	Cancer (320) Cardiovascular Disease (1) Infection (46) Inflammation/Immunology (22) Metabolic Disease (8) Neurological Disease (6)
Click Chemistry:	ADC Synthesis (1) DBCO (3) Alkynes (2)
Oligonucleotides:	Liposome (2)

358

Inhibitors & Agonists

Fluorescent Dyes

Biochemical Assay Reagents

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Inhibitory Antibodies

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Isotope-Labeled Compounds

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Oligonucleotides

GMP Molecules

Targets Recommended: Topoisomerase

Cat. No.	상품명	Target	연구분야	Chemical Structure

HY-16560

Camptothecin 65+ Cited Publications Campathecin; (S)-(+)-Camptothecin; CPT	Topoisomerase ADC Payload MicroRNA Influenza Virus Apoptosis Fungal Antibiotic	Infection Cancer
Camptothecin (CPT), a kind of alkaloid, is a *DNA topoisomerase* I (Topo I) inhibitor with an IC₅₀ of 679 nM . Camptothecin (CPT) exhibits powerful antineoplastic activity against colorectal, breast, lung and ovarian cancers, modulates hypoxia-inducible factor-1α (HIF-1α) activity by changing microRNAs (miRNA)** expression patterns in human cancer cells .

HY-16562

Irinotecan 70+ Cited Publications (+)-Irinotecan; CPT-11; VAL-413free base	Topoisomerase Autophagy	Neurological Disease Cancer
Irinotecan ((+)-Irinotecan) is a topoisomerase I inhibitor, preventing religation of the DNA strand by binding to topoisomerase I-DNA complex .

HY-128946

CL2A-SN-38 5 Publications Verification	Drug-Linker Conjugates for ADC	Inflammation/Immunology Cancer
CL2A-SN-38 is a agent-linker conjugate composed of a potent a DNA Topoisomerase I inhibitor SN-38 and a linker CL2A to make antibody agent conjugate (ADC). CL2A-SN-38 provides significant and specific antitumor effects against a range of human solid tumor types. CL2A-SN-38 uses hydrolyzable linker to deliver active agents within tumor cells and in the tumor microenvironment, resulting in bystander effects .

HY-164789

Sacituzumab tirumotecan SKB264; MK-2870	Antibody-Drug Conjugates (ADCs) TROP2	Cancer
Sacituzumab tirumotecan is an antibody-drug conjugate and TROP2-directed, topoisomerase I inhibitor payload-delivering agent, with a TROP2 EC₅₀ of 2.787 ng/ml, TROP2 K_a of 0.3083 nM, and topoisomerase I IC₅₀ of 0.7 μmol/L. Sacituzumab tirumotecan can be used for the research of metastatic triple-negative breast cancer, and metastatic non-small cell lung cancer .

HY-148820

Br-Val-Ala-NH2-bicyclo[1.1.1]pentane-7-MAD-MDCPT	Drug-Linker Conjugates for ADC Topoisomerase	Cancer
Br-Val-Ala-NH2-bicyclo[1.1.1]pentane-7-MAD-MDCPT (Formula V) is a agent-linker conjugate that composed of a potent topoisomerase I inhibitor and a linker to make an antibody agent conjugate (ADC), ABBV-969 .

HY-164152A

ADC Control Human IgG1-Deruxtecan (DAR 8)	Antibody-Drug Conjugates (ADCs) Topoisomerase	Cancer
ADC Control Human IgG1-Deruxtecan (DAR 8) is a humanized monoclonal antibody that is an isotype control of ADC human IgG1-Deruxtecan and can inhibit *DNA topoisomerase* I**. The antibody portion is Human IgG1 kappa, Isotype Control (HY-P99001), and the drug-linker conjugate for ADC is Deruxtecan (HY-13631E) .

HY-164152

ADC Control Human IgG1-Deruxtecan (DAR 4)	Antibody-Drug Conjugates (ADCs) Topoisomerase	Cancer
ADC Control Human IgG1-Deruxtecan (DAR 4) is a humanized monoclonal antibody that is an isotype control of ADC human IgG1-Deruxtecan and can inhibit *DNA topoisomerase* I**. The antibody portion is Human IgG1 kappa, Isotype Control (HY-P99001), and the drug-linker conjugate for ADC is Deruxtecan (HY-13631E) .

HY-156617A

(αR)-Cyclopropaneacetamide-Exatecan SHR169265	ADC Payload Topoisomerase	Cancer
(αR)-Cyclopropaneacetamide-Exatecan (SHR169265) is a DNA Topoisomerase I inhibitor with enhanced membrane permeability (with an IC₅₀ of 1.34 μM against the human *DNA Topoisomerase* I*). (αR)-Cyclopropaneacetamide-Exatecan exerts cytotoxic effects by inhibiting the enzymatic activity of Topoisomerase* I, and this anticancer effect is independent of the expression level of HER2. (αR)-Cyclopropaneacetamide-Exatecan is an ADC Cytotoxin derived from Exatecan (HY-13631), which can be used in research related to advanced cancers such as breast cancer, gastric cancer, colorectal cancer and non-small cell lung cancer .

HY-164792

DBCO-PEG3-VC-Exatecan	Drug-Linker Conjugates for ADC Topoisomerase	Cancer
DBCO-PEG3-VC-Exatecan (compound 25) is a Drug-Linker Conjugate for ADC. DBCO-PEG3-VC-Exatecan contains the ADC linker (DBCO-PEG3-VC) and a *DNA topoisomerase* I** inhibitor Exatecan (HY-13631) .

HY-N2108

7-Ethylcamptothecin	Drug Derivative Drug Intermediate Topoisomerase	Cancer
7-Ethylcamptothecin is a derivative of Camptothecin (HY-16560) and a *DNA topoisomerase* I** inhibitor that exhibits significant antitumor activity against tumor cells. 7-Ethylcamptothecin serves as a key precursor for the synthesis of 20 (S)-O-substituted benzoyl-7-ethylcamptothecin compounds. 7-Ethylcamptothecin is widely used in various tumor-related scientific studies .

HY-171689

Puxitatug samrotecan AZD 8205; P-Sam	Antibody-Drug Conjugates (ADCs) Topoisomerase	Cancer
Puxitatug samrotecan (AZD 8205) is a B7-H4-directed antibody-drug conjugate (ADC) bearing a Topoisomerase I inhibitor (TOP1i) payload. Puxitatug samrotecan improves HR ⁺/HER2 ^- breast cancer .

HY-173634

Mal((3S,3aR,6S,6aR)-Hexahydrofuro[3,2-b]furan-3,6-diamine-PEG12)-β-Glu-PAB-Exatecan	Drug-Linker Conjugates for ADC Topoisomerase	Cancer
Mal((3S,3aR,6S,6aR)-Hexahydrofuro[3,2-b]furan-3,6-diamine-PEG12)-β-Glu-PAB-Exatecan (LP1) is a drug-linker conjugate composed of a potent a DNA Topoisomerase I inhibitor Exatecan (HY-13631) and a linker Mal((3S,3aR,6S,6aR)-Hexahydrofuro[3,2-b]furan-3,6-diamine-PEG12)-β-Glu-PAB (HY-173635) to make antibody agent conjugate (ADC), AZD0516 (HY-173639) .

HY-N3488

Isodiospyrin	Topoisomerase Bacterial Fungal	Infection Cancer
Isodiospyrin, a natural dimeric naphthoquinone, is a human DNA topoisomerase I (Topoisomerase) inhibitor. Isodiospyrin can prevent both DNA relaxation and kinase activities of human topoisomerase I. Isodiospyrin shows anticancer, antibacterial and antifungal activities .

HY-153795

Mal-PEG2-Gly-Gly-Phe-Gly-Exatecan	Drug-Linker Conjugates for ADC Topoisomerase	Cancer
Mal-PEG2-Gly-Gly-Phe-Gly-Exatecan is a bioactive drug-linker conjugate for ADC (Drug-Linker Conjugates for ADC). Mal-PEG2-Gly-Gly-Phe-Gly-Exatecan consists of Exatecan (HY-13631) and a linker. Mal-PEG2-Gly-Gly-Phe-Gly-Exatecan is applicable to ADC synthesis and cancer research. Exatecan acts as a DNA Topoisomerase I inhibitor .

HY-148819A

NH2-bicyclo[1.1.1]pentane-7-MAD-MDCPT hydrochloride	ADC Payload Topoisomerase	Cancer
NH2-bicyclopentane-7-MAD-MDCPT hydrochloride (Formula I) is a topoisomerase I (TOP1) inhibitor. NH2-bicyclopentane-7-MAD-MDCPT hydrochloride is applicable to the synthesis of the ADC ABBV-969. NH2-bicyclopentane-7-MAD-MDCPT hydrochloride is used in research on lung adenocarcinoma and melanoma .

HY-177546

DBCO-PEG3-GGFG-Exatecan	Drug-Linker Conjugates for ADC Drug Derivative Topoisomerase	Cancer
DBCO-PEG3-GGFG-Exatecan is a Drug-linker conjugate for ADC. DBCO-PEG3-GGFG-Exatecan contains the ADC linker (DBCO-PEG3-GGFG) and a DNA topoisomerase I inhibitor Exatecan (HY-13631) .

HY-148058

Topoisomerase I inhibitor 8	Topoisomerase	Cancer
Topoisomerase I inhibitor 8 is a potent topoisomerase I inhibitor. Topoisomerase I inhibitor 8 is a hexacyclic analogue of camptothecin, and displays cytotoxic effect against tumor cells .

HY-118581

Coralyne chloride 1 Publications Verification	Topoisomerase	Cancer
Coralyne chloride is a protoberberine alkaloid with potent anti-cancer activities. Coralyne chloride acts as a potent topoisomerase I poison and induces Top I mediated DNA cleavage . Coralyne chloride can be used for preparing?coralyne derivatives?as DNA binding fluorescent probes .

HY-N10495

Seconeolitsine	Antibiotic Bacterial Topoisomerase	Infection
Seconeolitsine, an antibiotic, and is an inhibitor of targeting topoisomerase I (TopA). Seconeolitsine also is a new antimicrobial agent that can inhibit S. pneumoniae growth. Seconeolitsine can inhibit TopA relaxation activity with an IC₅₀ value of 17 μM. Seconeolitsine can be used for the research of S. pneumoniae infections resistant to other antibiotics .

HY-160774

Val-Cit-PABC-DOX	Drug-Linker Conjugates for ADC Topoisomerase	Cancer
Val-Cit-PABC-DOX (compound 10109), an epsilon-poly-L-lysine-based drug conjugate, is an agent-linker conjugate for ADC by using a DNA topoisomerase I and topoisomerase II inhibitor, Doxorubicin (HY-15142), linked via the linker, Val-Cit-PABC .

HY-128994A

GGFG-Exatecan TFA	Drug Intermediate	Cancer
GGFG-Exatecan TFA is a synthetic intermediate for drug-linker conjugates used in antibody-drug conjugates (ADCs). GGFG-Exatecan TFA consists of a glycyl-glycyl-phenylalanyl-glycine (GGFG) tetrapeptide linker and a DNA topoisomerase I inhibitor Exatecan (HY-13631). GGFG-Exatecan TFA can be used for the study of cancer .

HY-173243A

Val-Ala-PAB-SN38 TFA	Drug-Linker Conjugates for ADC	Cancer
Val-Ala-PAB-SN38 TFA is a drug-linker conjugate for ADC, composed of ADC linker Val-Ala-PAB (HY-125933) and SN38 (HY-13704), which is the active metabolite of the Topoisomerase I inhibitor Irinotecan (HY-16562) .

HY-100777

DACA	Topoisomerase	Neurological Disease Cancer
DACA (XR 5000) is a potential and blood-brain barrier-penetrating *topoisomerase* I and II inhibitor. DACA can be used in the research of colorectal cancer, leukemia and lung cancer .

HY-176976

Exatecan-mpGNNG	Drug-Linker Conjugates for ADC	Cancer
Exatecan-mpGNNG (Compound 10a) is the linker-payload component of an antibody-drug conjugate (ADC). Exatecan-mpGNNG is composed of Exatecan (HY-13631), a potent topoisomerase I inhibitor, and the linker .

HY-159783

Mal-Exatecan	ADC Payload Topoisomerase	Cancer
Mal-Exatecan is a Mal (Maleimide) modified Exatecan (HY-13631), a DNA topoisomerase I (topoisomerase I) inhibitor .

HY-16562S1

Irinotecan-d10 hydrochloride	Isotope-Labeled Compounds Topoisomerase Autophagy	Cancer
Irinotecan-d₁₀ (hydrochloride) is the deuterium labeled Irinotecan. Irinotecan ((+)-Irinotecan) is a topoisomerase I inhibitor, preventing religation of the DNA strand by binding to topoisomerase I-DNA complex .

HY-173703

β-Glu-PAB(CH2NH2)-Exatecan	Topoisomerase Drug Intermediate	Cancer
β-Glu-PAB(CH2NH2)-Exatecan (Compound 9a) is a topoisomerase I inhibitor. β-Glu-PAB(CH2NH2)-Exatecan binds to the topoisomerase I-DNA complex to prevent DNA strand reconnection, thereby inducing DNA breakage and cell apoptosis. β-Glu-PAB(CH2NH2)-Exatecan can be specifically cleaved by β-glucuronidase highly expressed in the tumor microenvironment to release Exatecan for cytotoxic effect. β-Glu-PAB(CH2NH2)-Exatecan is also an intermediate of Mal((3S,3aR,6S,6aR) -hexahydrofuro [3, 2-B]furan-3,6-diamine-PEG12)-β -Glu-Pab-Exatecan. β-Glu-PAB(CH2NH2)-Exatecan is promising for research of cancers .

HY-171747

AMT-562	Antibody-Drug Conjugates (ADCs) EGFR Topoisomerase Apoptosis	Cancer
AMT-562 is an antibody-drug conjugate (ADC) consisting of a novel anti-HER3 antibody Ab562 (HY-P991505) conjugated to the linker MC-VA-PAB and the topoisomerase I inhibitor Exatecan (HY-13631). The ADC toxic molecule and linker portion are MC-VA-PAB-Exatecan (HY-147270). AMT-562 can induce apoptosis and has antitumor activity against pancreatic, esophageal, and gastric cancers .

HY-143301

Topoisomerase I inhibitor 4	Topoisomerase	Cancer
Topoisomerase I inhibitor 4 (compound 7a) is a topoisomerase I inhibitor. Topoisomerase I inhibitor 4 inhibits HepG2, A549, MCF-7 and HeLa cancer cells proliferation with IC₅₀s of 1.20, 2.09, 1.56 and 1.92 μM, respectively. Topoisomerase I inhibitor 4 can be used for the research of cancer .

HY-13622A

Elomotecan BN 80927 free base	Topoisomerase	Cancer
Elomotecan (BN 80927 free base) is a potent inhibitor of topoisomerases I and II. Elomotecan is a camptothecin analog belonging to the homocamptothecin family (hCPT). Elomotecan reduces the proliferation of different tumor cells with higher potency than other anticancer agents of reference targeting topoisomerases I and II .

HY-13622

Elomotecan hydrochloride BN 80927	Topoisomerase	Cancer
Elomotecan hydrochloride (BN 80927) is a potent inhibitor of topoisomerases I and II. Elomotecan hydrochloride (BN 80927) is a camptothecin analog belonging to the homocamptothecin family (hCPT). Elomotecan hydrochloride (BN 80927) reduces the proliferation of different tumor cells with higher potency than other anticancer agents of reference targeting topoisomerases I and II .

HY-128994

GGFG-Exatecan	Drug Intermediate	Cancer
GGFG-Exatecan is a synthetic intermediate for drug-linker conjugates used in antibody-drug conjugates (ADCs). GGFG-Exatecan consists of a glycyl-glycyl-phenylalanyl-glycine (GGFG) tetrapeptide linker and a DNA topoisomerase I inhibitor Exatecan (HY-13631). GGFG-Exatecan can be used for the study of cancer .

HY-13611

Diflomotecan BN 80915	Topoisomerase	Cancer
Diflomotecan (BN 80915) is a potent and orally active inhibitor of topoisomerase I. Diflomotecan (BN 80915) causes enhanced plasma stability and has the superior preclinical anti-tumour activity compared with other established compounds .

HY-13631T

(1R,9S)-Exatecan (1R,9S)-DX8951f	Drug Derivative ADC Payload Topoisomerase	Cancer
(1R,9S)-Exatecan (DX8951f) is the (1R,9S) stereoisomer of Exatecan (HY-13631). Exatecan (DX-8951) is a *DNA topoisomerase* I inhibitor, with an IC₅₀** of 2.2 μM (0.975 μg/mL), and can be used in cancer research .

HY-178373

Topoisomerase I-IN-18	Topoisomerase DNA/RNA Synthesis Reactive Oxygen Species (ROS) MDM-2/p53 Caspase	Cancer
Topoisomerase I-IN-18, a derivative of Thiosemicarbazide (HY-Y0032), is a *Topoisomerase* I inhibitor. Topoisomerase I-IN-18 can disrupt DNA synthesis and transcription. Topoisomerase I-IN-18 inhibits tumor cell proliferation by inducing S-phase cell cycle arrest. Topoisomerase I-IN-18 can enhance mitochondria-mediated apoptosis, suppress cell migration, and increase intracellular Reactive Oxygen Species (ROS) levels. Topoisomerase I-IN-18 can increase p53 protein expression, γH2AX phosphorylation, upregulate Bax expression, downregulate Bcl-2 expression, and activate the caspase cascade. Topoisomerase I-IN-18 can be used for the study of lung cancer .

HY-175700

YCJ-02	Topoisomerase Apoptosis	Cancer
YCJ-02 is a selective Topoisomerase I (Top I) inhibitor. YCJ-02 can inhibit cell proliferation and induce apoptosis and G2/M phase arrest. YCJ-02 can induce DNA damage and increaseγ-H2AX levels. YCJ-02 can promote Top I deqradation via a ubiquitin/26S proteasome pathway. YCJ-02 increases the expressions of pro-apoptotic proteins Bad, Bax, and cleaved caspase-3. YCJ-02 shows broad-spectrum antitumor activity. YCJ-02 can be used for the research of cancer, such as intrahepatic cholangiocarcinoma (ICC) .

HY-143265

Topoisomerase I inhibitor 2	Topoisomerase Apoptosis Caspase	Cancer
Topoisomerase I inhibitor 2 (ZML-8) is a highly selective inhibitor of *DNA topoisomerase* I (Top1*). Topoisomerase* I inhibitor 2 inhibits Top1 activity and results DNA damage. Topoisomerase I inhibitor 2 blocks G2/M phase and induces apoptosis, exhibits anti-tumor effect .

HY-19825

Rebeccamycin	Topoisomerase ADC Payload Antibiotic	Cancer
Rebeccamycin, an antitumor antibiotic, inhibits *DNA topoisomerase* I*. Rebeccamycin appears to exert its primary antineoplastic effect by poisoning topoisomerase* I and has negligible effect on protein kinase C and topoisomerase II .

HY-144774

Topoisomerase I inhibitor 5	Topoisomerase DNA/RNA Synthesis Apoptosis	Cancer
Topoisomerase I inhibitor 5 is an effective *topoisomerase* inhibitor with IC₅₀ value of. Topoisomerase I inhibitor 5 can interfere with DNA and significantly inhibit the activity of Topoisomerase I. Topoisomerase I inhibitor 5 can arrest cell cycle at the G1 phase and induce MCF-7 cells apoptosis. Topoisomerase I inhibitor 5 has potency in reversing P-gp-mediated resistance to Adriamycin .

HY-175034

Topoisomerase I/II-IN-1	Topoisomerase Apoptosis MDM-2/p53 Bcl-2 Family Caspase	Cancer
Topoisomerase I/II-IN-1 is a dual inhibitor of **topoisomerase I/II*. Topoisomerase* I/II-IN-1 induces G2/M arrest and apoptosis in cancer cells by upregulating p53, p21, and Bax mRNA levels, caspase-3 protein levels, and the Bax/Bcl-2 ratio, while downregulating Bcl-2. Topoisomerase I/II-IN-1 is useful in the study of various cancers, including melanoma, renal cancer, colorectal cancer, and breast cancer .

HY-162587

Fagopyrine	Topoisomerase	Cancer
Fagopyrine is a DNA topoisomerase I (Topo I) inhibitor. Fagopyrine is a photosensitizer that can be used in the study of tumors .

HY-116933

Murrayanol	Topoisomerase Bacterial	Infection Inflammation/Immunology
Murrayanol is a natural carbazole alkaloid with a variety of biological activities. Murrayanol shows anti-inflammatory, topoisomerase I and topoisomerase II (Topoisomerase) inhibition activities. Murrayanol also as a mosquitocidal and antimicrobial .

HY-156969

Topoisomerase I inhibitor 11	Topoisomerase Btk	Cancer
Topoisomerase I inhibitor 11 is a potent inhibitor of *Topoisomerase* I. Topoisomerase I inhibitor 11 can bind to BTK .

HY-W713570

Nectandrin B	Topoisomerase	Cancer
Nectandrin B is an inhibitor of *DNA topoisomerases* I and II*, which is found in Saururus chinensis*. Nectandrin B is promising for research of cancers .

HY-178315

Exatecan analog 38	Topoisomerase ADC Payload	Cancer
Exatecan analog 38 is a camptothecin derivative with potent topoisomerase I inhibitory activity. Exatecan analog 38 can be connected to monoclonal antibodies via linkers to form antibody-drug conjugate (ADC) molecules. Exatecan analog 38 can be used for cancer research .

HY-149002

Topoisomerase I/II inhibitor 4	Topoisomerase Apoptosis	Cancer
Topoisomerase I/II inhibitor 4 (compound F16) is a potent topoisomerase I (Topo I) and II (Topo II) dual inhibitor. Topoisomerase I/II inhibitor 4 inhibits cell proliferation, invasion and migration and induces apoptosis. Topoisomerase I/II inhibitor 4 can be used for liver cancer research .

HY-146437

Topoisomerase I inhibitor 6	Topoisomerase	Cancer
Topoisomerase I inhibitor 6 (Compound 3) is a potent inhibitor of Topoisomerase I. Topoisomerase I inhibitor 6 is able to trap DNA-Top1 cleavage complex and found to be less cytotoxic in non-cancerous cell line. Topoisomerase I inhibitor 6 has the potential for the research of cancer diseases .

HY-13631N

(9R)-Exatecan (9R)-DX8951f	Drug Derivative ADC Payload Topoisomerase	Cancer
(9R)-Exatecan (DX8951f) is the (1R,9S) stereoisomer of Exatecan (HY-13631). Exatecan (DX-8951) is a *DNA topoisomerase* I inhibitor, with an IC₅₀** of 2.2 μM (0.975 μg/mL), and can be used in cancer research.

HY-173243

Val-Ala-PAB-SN38	Drug-Linker Conjugates for ADC	Cancer
Val-Ala-PAB-SN38 is a drug-linker conjugate for ADC, composed of ADC linker Val-Ala-PAB (HY-125933) and SN38 (HY-13704), which is the active metabolite of the Topoisomerase I inhibitor Irinotecan (HY-16562) .

HY-146497

Topoisomerase I inhibitor 7	Topoisomerase	Cancer
Topoisomerase I inhibitor 7 (Compound 8) is a potent inhibitor of Topoisomerase I. Topoisomerase I inhibitor 7 significantly inhibits tumor growth (up to 79%) and increases the lifespan (153%) of mice bearing P388 lymphoma transplants. Topoisomerase I inhibitor 7 indicates prospects for further search of new antitumor agent candidates among the heteroarene-fused anthraquinones .

Cat. No.	상품명	Category	Target	Chemical Structure

HY-15142

Doxorubicin hydrochloride Maximum Cited Publications 650 Publications Verification Hydroxydaunorubicin hydrochloride; ADR	Infection Quinones Structural Classification Microorganisms Classification of Application Fields Anthraquinones Disease Research Fields Source Classification	Topoisomerase ADC Payload AMPK Autophagy Apoptosis HIV HBV Mitophagy Antibiotic Bacterial Fluorescent Dye
Doxorubicin hydrochloride (Hydroxydaunorubicin hydrochloride; ADR), a cytotoxic anthracycline antibiotic, is an anti-cancer chemotherapy agent. Doxorubicin hydrochloride is a potent human *DNA topoisomerase* I** and topoisomerase II inhibitor with IC₅₀s of 0.8 μM and 2.67 μM, respectively. Doxorubicin hydrochloride reduces basal phosphorylation of AMPK and its downstream target acetyl-CoA carboxylase. Doxorubicin hydrochloride induces apoptosis and autophagy .

HY-13704

SN-38 65+ Cited Publications 7-Ethyl-10-hydroxycamptothecin	Alkaloids Structural Classification Classification of Application Fields Labiatae Samanea saman (Jacq.) Merr. Quinoline Alkaloids Plants Disease Research Fields Source Classification Cancer	Drug Metabolite Topoisomerase ADC Payload Autophagy
SN-38 is an active metabolite of the Topoisomerase I inhibitor Irinotecan. SN-38 can bind to RPL15. SN-38 inhibits DNA and RNA synthesis with IC₅₀s of 0.077 and 1.3 μM, respectively. SN-38 is a payload of sacituzumab govitecan (HY -132254) .

HY-16560

Camptothecin 65+ Cited Publications Campathecin; (S)-(+)-Camptothecin; CPT	Infection Alkaloids Classification of Application Fields Quinoline Alkaloids Camptotheca acuminata Decne. Nyssaceae Plants Disease Research Fields	Topoisomerase ADC Payload MicroRNA Influenza Virus Apoptosis Fungal Antibiotic
Camptothecin (CPT), a kind of alkaloid, is a *DNA topoisomerase* I (Topo I) inhibitor with an IC₅₀ of 679 nM . Camptothecin (CPT) exhibits powerful antineoplastic activity against colorectal, breast, lung and ovarian cancers, modulates hypoxia-inducible factor-1α (HIF-1α) activity by changing microRNAs (miRNA)** expression patterns in human cancer cells .

HY-13768A

Topotecan hydrochloride 35+ Cited Publications SKF 104864A hydrochloride; NSC 609669 hydrochloride	Alkaloids Monophenols Classification of Application Fields Phenols Quinoline Alkaloids Camptotheca acuminata Decne. Plants Nyssaceae Disease Research Fields Cancer Source Classification	Topoisomerase Autophagy Apoptosis
Topotecan Hydrochloride (SKF 104864A Hydrochloride) is a Topoisomerase I inhibitor with potent antineoplastic activities.

HY-16562A

Irinotecan hydrochloride 70+ Cited Publications (+)-Irinotecan hydrochloride; CPT-11 hydrochloride; VAL-413	Alkaloids Classification of Application Fields Quinoline Alkaloids Camptotheca acuminata Decne. Nyssaceae Plants Disease Research Fields Source Classification Cancer	Topoisomerase Autophagy
Irinotecan hydrochloride ((+)-Irinotecan hydrochloride) is a topoisomerase I inhibitor mainly used to treat colon cancer and rectal cancer .

HY-10529

Betulinic acid 30+ Cited Publications Lupatic acid; Betulic acid	Infection Triterpenes Structural Classification other families Classification of Application Fields Terpenoids Plants Endogenous metabolite Inflammation/Immunology Disease Research Fields Source Classification	Apoptosis Topoisomerase HIV Autophagy Mitophagy NF-κB Endogenous Metabolite Parasite
Betulinic acid is a natural pentacyclic triterpenoid, acts as a eukaryotic topoisomerase I inhibitor, with an IC₅₀ of 5 μM, and possesses anti-HIV, anti-malarial, anti-inflammatory and anti-tumor properties . Betulinic acid can cross the blood-brain barrier .

HY-A0210

Cerulenin 10+ Cited Publications	Microorganisms Antifungal Classification of Application Fields Antibiotics Metabolic Disease Mammalian Cell Culture Disease Research Anticancer Disease Research Fields Other Antibiotics Source Classification	Fatty Acid Synthase (FASN) Fungal Apoptosis Antibiotic
Cerulenin, a potent, natural inhibitor of fatty acid synthase (FASN), is an epoxide produced by the fungus Cephalosporium caeruleus. Cerulenin inhibits topoisomerase I catalytic activity and augments SN-38-induced apoptosis. Cerulenin has antifungal and antitumor activies .

HY-15142R

Doxorubicin hydrochloride (Standard) 5 Publications Verification Hydroxydaunorubicin hydrochloride (Standard); ADR (Standard)	Quinones Structural Classification Microorganisms Anthraquinones Source Classification	Reference Standards Topoisomerase ADC Payload AMPK Autophagy Apoptosis HIV HBV Mitophagy Antibiotic Bacterial Fluorescent Dye
Doxorubicin hydrochloride (Standard) is the analytical standard of Doxorubicin hydrochloride. This product is intended for research and analytical applications. Doxorubicin (Hydroxydaunorubicin) hydrochloride, a cytotoxic anthracycline antibiotic, is an anti-cancer chemotherapy agent. Doxorubicin hydrochloride is a potent human *DNA topoisomerase* I** and topoisomerase II inhibitor with IC₅₀s of 0.8 μM and 2.67 μM, respectively. Doxorubicin hydrochloride reduces basal phosphorylation of AMPK and its downstream target acetyl-CoA carboxylase. Doxorubicin hydrochloride induces apoptosis and autophagy .

HY-N2306

Aclacinomycin A 5 Publications Verification Aclarubicin	Quinones Structural Classification Microorganisms Anthraquinones	Topoisomerase DNA/RNA Synthesis Proteasome Antibiotic
Aclacinomycin A (Aclarubicin) is an orally active and potent anthracycline antitumor antibiotic. Aclacinomycin A is an inhibitor of topoisomerase I and II. Aclacinomycin A inhibits synthesis of nucleic acid, especially RNA. Aclacinomycin A might inhibit the 26S protease complex as well as the ubiquitin-ATP-dependent proteolysis .

HY-13555

β-Lapachone 10+ Cited Publications ARQ-501; NSC-26326	Quinones other families Classification of Application Fields Plants Naphthalene Quinones Disease Research Fields Source Classification Cancer	Indoleamine 2,3-Dioxygenase (IDO) Topoisomerase Autophagy Apoptosis
β-Lapachone (ARQ-501;NSC-26326) is a naturally occurring O-naphthoquinone, acts as a topoisomerase I inhibitor, and induces apoptosis by inhibiting cell cycle progression.

HY-15142A

Doxorubicin Hydroxydaunorubicin	Infection Quinones Structural Classification Microorganisms Classification of Application Fields Anthraquinones Phenols Polyphenols Disease Research Fields Source Classification	ADC Payload Antibiotic Bacterial Topoisomerase AMPK HIV Autophagy Mitophagy Apoptosis HBV Fluorescent Dye
Doxorubicin (Hydroxydaunorubicin), a cytotoxic anthracycline antibiotic, is an anti-cancer chemotherapy agent. Doxorubicin is a potent human *DNA topoisomerase* I** and topoisomerase II inhibitor with IC₅₀s of 0.8 μM and 2.67 μM, respectively. Doxorubicin reduces basal phosphorylation of AMPK and its downstream target acetyl-CoA carboxylase. Doxorubicin induces apoptosis and autophagy .

HY-N2331

Proscillaridin A 1 Publications Verification	Apocynaceae Structural Classification Classification of Application Fields Nerium indicum Mill. Plants Disease Research Fields Steroids Source Classification Cancer	Topoisomerase
Proscillaridin A is a potent poison of **topoisomerase I/II activity with IC₅₀** values of 30 nM and 100 nM, respectively .

HY-N6800A

Netropsin dihydrochloride 1 Publications Verification	Classification of Application Fields Inflammation/Immunology Disease Research Fields	Antibiotic DNA/RNA Synthesis Bacterial Influenza Virus Orthopoxvirus
Netropsin dihydrochloride is a small-molecule MGB (minor-groove binder) and antibiotic, inhibits the catalytic activity of isolated topoisomerase and interferes with the stabilization of the cleavable complexes of topoisomerase II and I in nuclei. Netropsin dihydrochloride has antibacterial and antiviral activity .

HY-N0095

(S)-10-Hydroxycamptothecin 1 Publications Verification 10-HCPT; 10-Hydroxycamptothecin	Alkaloids Monophenols Pyrrole Alkaloids Classification of Application Fields Phenols Quinoline Alkaloids Camptotheca acuminata Decne. Nyssaceae Plants Disease Research Fields Source Classification Cancer	Topoisomerase Apoptosis
(S)-10-Hydroxycamptothecin (10-HCPT;10-Hydroxycamptothecin) is a *DNA topoisomerase* I** inhibitor of isolated from the Chinese plant Camptotheca accuminata. (S)-10-Hydroxycamptothecin exhibits a remarkable apoptosis-inducing effect. (S)-10-Hydroxycamptothecin has the potential for hepatoma, gastric carcinoma, colon cancer and leukaemia treatment .

HY-B0147

Pefloxacin 3 Publications Verification Pefloxacinium	Infection Classification of Application Fields Disease Research Fields	Antibiotic Bacterial Parasite DNA/RNA Synthesis Topoisomerase
Pefloxacin (Pefloxacinium) is a broad spectrum antibiotic. Pefloxacin blocks DNA replication by inhibiting DNA gyrase. Pefloxacin inhibits DNA relaxation catalyzed by topoisomerase I with an IC₅₀ of 45 μg/mL. Pefloxacin exhibits antibacterial activity against Escherichia coli, Pseudomonas aeruginosa, and Bacteroides fragilis with MIC₉₀s of 0.12, 4, and 16 mg/L, respectively. Pefloxacin has anti-Plasmodium yoelii infection activity. Pefloxacin increase UVA-induced edema and immunesuppression. Pefloxacin can be used for infection studies .

HY-13744

Rubitecan RFS 2000; 9-Nitrocamptothecin	Alkaloids Classification of Application Fields Quinoline Alkaloids Camptotheca acuminata Decne. Nyssaceae Plants Disease Research Fields Source Classification Cancer	Topoisomerase
Rubitecan (RFS 2000), a Camptothecin derivative, is an orally active topoisomerase I inhibitor with broad antitumor activity, and induces protein-linked DNA single-strand breaks, thereby blocking DNA and RNA synthesis in dividing cells .

HY-N2108

7-Ethylcamptothecin	Alkaloids Structural Classification other families Classification of Application Fields Quinoline Alkaloids Camptotheca acuminata Decne. Nyssaceae Plants Disease Research Fields Source Classification Cancer	Drug Derivative Drug Intermediate Topoisomerase
7-Ethylcamptothecin is a derivative of Camptothecin (HY-16560) and a *DNA topoisomerase* I** inhibitor that exhibits significant antitumor activity against tumor cells. 7-Ethylcamptothecin serves as a key precursor for the synthesis of 20 (S)-O-substituted benzoyl-7-ethylcamptothecin compounds. 7-Ethylcamptothecin is widely used in various tumor-related scientific studies .

HY-N3488

Isodiospyrin	Quinones other families Diospyros virginiana L. Benzene Quinones Plants Source Classification	Topoisomerase Bacterial Fungal
Isodiospyrin, a natural dimeric naphthoquinone, is a human DNA topoisomerase I (Topoisomerase) inhibitor. Isodiospyrin can prevent both DNA relaxation and kinase activities of human topoisomerase I. Isodiospyrin shows anticancer, antibacterial and antifungal activities .

HY-N6714

Alternariol	Infection Microorganisms Classification of Application Fields Phenols Polyphenols Disease Research Fields Source Classification	Topoisomerase Androgen Receptor Estrogen Receptor/ERR Apoptosis
Alternariol is an orally ingested mycotoxin produced by Alternaria, capable of inhibiting the activity of topoisomerase I and II (topoisomerase I, topoisomerase II). Alternariol has weak estrogenic (Estrogen Receptor/ERR) and androgen/antiandrogen (Androgen Receptor) effects. Alternariol can induce apoptosis, trigger cell cycle arrest, suppress innate immune responses, and exhibit anti-tumor activity. Alternariol has genotoxic, mutagenic, and endocrine-disrupting effects .

HY-100309

9-Aminocamptothecin 1 Publications Verification 9-Amino-20(S)-camptothecin; 9-Amino-CPT	Alkaloids Structural Classification Classification of Application Fields Camptotheca acuminata Decne. Nyssaceae Plants Disease Research Fields Indole Alkaloids Source Classification Cancer	Topoisomerase
9-Aminocamptothecin (9-Amino-CPT) is a topoisomerase I inhibitor with potent anticancer activity .

HY-N5038

Mauritianin	Flavonols Classification of Application Fields Erythrina stricta Roxb. Plants Compositae Acalypha indica Linn. Flavonoids Phenols Polyphenols Euphorbiaceae Disease Research Fields Source Classification Cancer	Topoisomerase
Mauritianin is an orally active kaempferol glycoside. Mauritianin can be isolated from the flowers and leaves of Acalypha indica. Mauritianin is a topoisomerase I inhibitor. Mauritianin has hepatoprotective, neuroprotective, and renoprotective activities. Mauritianin increases vascular tone when used in combination with Alcesefoliside (HY-N5049) .

HY-N1457

Chrysosplenetin 3 Publications Verification	Flavonols Structural Classification Piscidia erythrina L. Flavonoids Classification of Application Fields Phenols Polyphenols Metabolic Disease Plants Compositae Disease Research Fields Source Classification	P-glycoprotein Topoisomerase Apoptosis DNA/RNA Synthesis Wnt β-catenin Parasite
Chrysosplenetin is an orally active polymethoxyflavone. Chrysosplenetin exerts anticancer effects by inhibiting *topoisomerase, protecting DNA and inducing apoptosis. Chrysosplenetin acts as an antimalarial sensitizer, reverses Artemisinin (HY-B0094) resistance by inhibiting and downregulating P-glycoprotein, and enhances the efficacy of Artemisinin. Chrysosplenetin promotes bone formation by activating the Wnt/β-catenin* pathway and exerts anti-osteoporotic effects .

HY-W046353

2-Methoxycinnamaldehyde o-Methoxycinnamaldehyde	Cinnamomum cassia (L.) D. Don Classification of Application Fields Simple Phenylpropanols Phenylpropanoids Plants Lauraceae Disease Research Fields Source Classification Cancer	Apoptosis NF-κB Topoisomerase Mitochondrial Metabolism Caspase
2-Methoxycinnamaldehyde (o-Methoxycinnamaldehyde) is a natural compound that can be isolated from Cinnamomum cassia. 2-Methoxycinnamaldehyde inhibits *topoisomerase-I/II* and NF-κB signaling pathway, causes mitochondrial dysfunction, induces lysosomal vesiculation, thereby leading to DNA damage and cell apoptosis. 2-Methoxycinnamaldehyde exhibits antitumor effects .

HY-13704R

SN-38 (Standard) 7-Ethyl-10-hydroxycamptothecin (Standard)	Alkaloids Labiatae Samanea saman (Jacq.) Merr. Quinoline Alkaloids Plants Source Classification	Drug Metabolite Reference Standards Topoisomerase ADC Payload Autophagy
SN-38 (Standard) is the analytical standard of SN-38. This product is intended for research and analytical applications. SN-38 is an active metabolite of the Topoisomerase I inhibitor Irinotecan. SN-38 inhibits DNA and RNA synthesis with IC50s of 0.077 and 1.3 μM, respectively. SN-38 is a payload of sacituzumab govitecan (HY -132254) .

HY-N0275

(±)-10-Hydroxycamptothecin (±)-10-HCPT	Alkaloids Monophenols Pyrrole Alkaloids Classification of Application Fields Phenols Quinoline Alkaloids Camptotheca acuminata Decne. Nyssaceae Plants Disease Research Fields Source Classification Cancer	Topoisomerase
(±)-10-Hydroxycamptothecin is an indole alkaloid that inhibits the activity of topoisomerase I and has a broad spectrum of anticancer activity.

HY-N2198

Podocarpusflavone A	Structural Classification Flavonoids Classification of Application Fields Guttiferae Phenols Polyphenols Plants Garcinia subelliptica Biflavones Disease Research Fields Source Classification Cancer	Fungal Bacterial Topoisomerase Apoptosis
Podocarpusflavone A is a biflavonoid present in the leaves of Podocarpus henkelii, with anti-tumor, topoisomerase I inhibitory, antibacterial and antifungal activities. Podocarpusflavone A exhibits antibacterial activity against Enterococcus faecalis and Pseudomonas aeruginosa. Podocarpusflavone A shows weak activity against fungal pathogens. Podocarpusflavone A targets topoisomerase I and induces cell cycle arrest and apoptosis in MCF-7 cells. Podocarpusflavone A can be used for studies on cancer, bacterial and fungal infections .

HY-N2306A

Aclacinomycin A hydrochloride Aclarubicin hydrochloride	Quinones Microorganisms Classification of Application Fields Anthraquinones Phenols Polyphenols Disease Research Fields Source Classification Cancer	Topoisomerase DNA/RNA Synthesis Proteasome Antibiotic
Aclacinomycin A (Aclarubicin) hydrochloride is an orally active and potent anthracycline antitumor antibiotic. Aclacinomycin A hydrochloride is an inhibitor of topoisomerase I and II. Aclacinomycin A hydrochloride inhibits synthesis of nucleic acid, especially RNA. Aclacinomycin A hydrochloride might inhibit the 26S protease complex as well as the ubiquitin-ATP-dependent proteolysis .

HY-N10495

Seconeolitsine	Infection Microorganisms Classification of Application Fields Antibiotics Disease Research Fields Source Classification	Antibiotic Bacterial Topoisomerase
Seconeolitsine, an antibiotic, and is an inhibitor of targeting topoisomerase I (TopA). Seconeolitsine also is a new antimicrobial agent that can inhibit S. pneumoniae growth. Seconeolitsine can inhibit TopA relaxation activity with an IC₅₀ value of 17 μM. Seconeolitsine can be used for the research of S. pneumoniae infections resistant to other antibiotics .

HY-10529R

Betulinic acid (Standard) Lupatic acid (Standard); Betulic acid (Standard)	Triterpenes Structural Classification other families Terpenoids Plants Endogenous metabolite Source Classification	Reference Standards Apoptosis Topoisomerase HIV Autophagy Mitophagy NF-κB Endogenous Metabolite Parasite
Betulinic acid (Standard) is the analytical standard of Betulinic acid. This product is intended for research and analytical applications. Betulinic acid is a natural pentacyclic triterpenoid, acts as a eukaryotic topoisomerase I inhibitor, with an IC50 of 5 μM, and possesses anti-HIV, anti-malarial, anti-inflammatory and anti-tumor properties . Betulinic acid can cross the blood-brain barrier.

HY-N2306R

Aclacinomycin A (Standard) Aclarubicin (Standard)	Quinones Structural Classification Microorganisms Anthraquinones	Reference Standards Topoisomerase DNA/RNA Synthesis Proteasome Antibiotic
Aclacinomycin A (Standard) is the analytical standard of Aclacinomycin A. This product is intended for research and analytical applications. Aclacinomycin A (Aclarubicin) is an orally active and potent anthracycline antitumor antibiotic. Aclacinomycin A is an inhibitor of topoisomerase I and II. Aclacinomycin A inhibits synthesis of nucleic acid, especially RNA. Aclacinomycin A might inhibit the 26S protease complex as well as the ubiquitin-ATP-dependent proteolysis .

HY-19825

Rebeccamycin	Microorganisms Classification of Application Fields Antibiotics Disease Research Anticancer Disease Research Fields Other Antibiotics Cancer Source Classification	Topoisomerase ADC Payload Antibiotic
Rebeccamycin, an antitumor antibiotic, inhibits *DNA topoisomerase* I*. Rebeccamycin appears to exert its primary antineoplastic effect by poisoning topoisomerase* I and has negligible effect on protein kinase C and topoisomerase II .

HY-119458

Luotonin A	Structural Classification Alkaloids Peganum nigellastrum Bunge Zygophyllaceae Quinoline Alkaloids Plants Source Classification	Topoisomerase TMV Fungal
Luotonin A is an antiviral and antiphytopathogenic fungus agent. Luotonin A has good antiviral activity against tobacco mosaic virus (TMV). Luotonin A also has certain inhibitory activity on topoisomerase I and topoisomerase II. Luotonin A shows antitumor activity .

HY-116933

Murrayanol	Alkaloids Rutaceae Murraya koenigii (L.) Spreng Plants Indole Alkaloids	Topoisomerase Bacterial
Murrayanol is a natural carbazole alkaloid with a variety of biological activities. Murrayanol shows anti-inflammatory, topoisomerase I and topoisomerase II (Topoisomerase) inhibition activities. Murrayanol also as a mosquitocidal and antimicrobial .

HY-W713570

Nectandrin B	Monophenols Saururaceae Saururus chinensis (Lour.) Baill. Phenols Plants Source Classification	Topoisomerase
Nectandrin B is an inhibitor of *DNA topoisomerases* I and II*, which is found in Saururus chinensis*. Nectandrin B is promising for research of cancers .

HY-N6800

Netropsin	Natural Products Microorganisms Source Classification	Antibiotic DNA/RNA Synthesis Bacterial Influenza Virus Orthopoxvirus
Netropsin dihydrochloride is a small-molecule MGB (minor-groove binder) and antibiotic, inhibits the catalytic activity of isolated topoisomerase and interferes with the stabilization of the cleavable complexes of topoisomerase II and I in nuclei. Netropsin dihydrochloride has antibacterial and antiviral activity .

HY-16560R

Camptothecin (Standard) Campathecin (Standard); (S)-(+)-Camptothecin (Standard); CPT (Standard)	Alkaloids Structural Classification Quinoline Alkaloids Camptotheca acuminata Decne. Nyssaceae Plants	Reference Standards Topoisomerase ADC Payload MicroRNA Influenza Virus Apoptosis Fungal Antibiotic
Camptothecin (Standard) (Campathecin (Standard)) is the analytical standard of Camptothecin (HY-16560). This product is intended for research and analytical applications. Camptothecin (CPT), a kind of alkaloid, is a *DNA topoisomerase* I (Topo I) inhibitor with an IC₅₀** of 679 nM. Camptothecin (CPT) exhibits powerful antineoplastic activity against colorectal, breast, lung and ovarian cancers, modulates hypoxia-inducible factor-1α (HIF-1α) activity by changing microRNAs (miRNA) expression patterns in human cancer cells.

HY-N15319

Eupolauridine Canangine	Alkaloids Other Alkaloids Cananga odorata Plants Annonaceae Source Classification	Topoisomerase Fungal
Eupolauridine (Canangine) is a selective *DNA topoisomerase* II inhibitor with IC₅₀** values of 20 μM for fungal topoisomerase I and 33 μM for human topoisomerase I. Eupolauridine exerts antifungal activity by inhibiting the catalytic activity of topoisomerase II and stabilizing its cleavage complex with DNA, leading to DNA damage. Eupolauridine is promising for research of fungal infectious diseases .

HY-Y0790R

Cuminaldehyde (Standard) p-Isopropylbenzaldehyde (Standard)	Structural Classification Ketones, Aldehydes, Acids Rudbeckia laciniata L. Umbelliferae Plants Endogenous metabolite Source Classification	α-synuclein Reference Standards
Cuminaldehyde Standard is the analytical standard of Cuminaldehyde. This product is intended for research and analytical applications. Cuminaldehyde is the main component of Cuminum cyminum and has multiple biological activities, including anti-inflammatory, anti-cancer, anti-diabetic, anti-injury, anti-neuropathy and antibacterial effects. Cuminaldehyde is an inhibitor of aldose reductase (IC₅₀= 0.00085 mg/mL) and α-glucosidase (IC₅₀=0.5 mg/mL). Cuminaldehyde also inhibits the fibrillation of α-synuclein and prevents its aggregation Cuminaldehyde can induce apoptosis in colon adenocarcinoma cells by targeting topoisomerase I and II. In addition, Cuminaldehyde also exerts anti-inflammatory activity by inhibiting lipoxygenase. Cuminaldehyde has a strong inhibitory effect on the growth of Aspergillus flavus and the biosynthesis of aflatoxin B1 (AFB1). Cuminaldehyde can exert anti-injury and anti-neuropathy effects by participating in opioid receptors, L-arginine/NO/cGMP pathways and anti-inflammatory effects. Cuminaldehyde has potential application value in the research of neurodegenerative diseases, cancer, diabetes and neuropathic pain diseases .

HY-N10115

Huanglongmycin N	Quinones Microorganisms Classification of Application Fields Anthraquinones Phenols Polyphenols Disease Research Fields Cancer Source Classification	Topoisomerase
Huanglongmycin N is a *DNA topoisomerase* I inhibitor (EC₅₀** = 14 μM).

HY-W897655

20-O-Acetylcamptothecin O-Acetylcamptothecin	Alkaloids Camptotheca acuminata Decne. Nyssaceae Plants Isoquinoline Alkaloids Source Classification	Topoisomerase
20-O-Acetylcamptothecin (O-Acetylcamptothecin) is a derivative of Camptothecin (HY-16560) and an inhibitor of *Topoisomerase* I .

HY-N6714R

Alternariol (Standard)	Structural Classification Microorganisms Phenols Polyphenols Source Classification	Reference Standards Topoisomerase Androgen Receptor Estrogen Receptor/ERR Apoptosis
Alternariol (Standard) is the analytical standard of Alternariol. This product is intended for research and analytical applications. Alternariol is an orally ingested mycotoxin produced by Alternaria, capable of inhibiting the activity of topoisomerase I and II (topoisomerase I, topoisomerase II). Alternariol has weak estrogenic (Estrogen Receptor/ERR) and androgen/antiandrogen (Androgen Receptor) effects. Alternariol can induce apoptosis, trigger cell cycle arrest, suppress innate immune responses, and exhibit anti-tumor activity. Alternariol has genotoxic, mutagenic, and endocrine-disrupting effects .

HY-N10367

Corydamine	Alkaloids Corydalis bulleyana Diels Classification of Application Fields Plants Isoquinoline Alkaloids Disease Research Fields Papaveraceae Cancer Source Classification	Topoisomerase
Corydamine, 3-arylisoquinoline alkaloid, is a potent DNA topoisomerase I/II inhibitor. Corydamine has anti-cancer activity .

HY-13768AR

Topotecan hydrochloride (Standard) SKF 104864A hydrochloride (Standard); NSC 609669 hydrochloride (Standard)	Alkaloids Structural Classification Monophenols Phenols Quinoline Alkaloids Camptotheca acuminata Decne. Nyssaceae Plants Source Classification	Reference Standards Topoisomerase Autophagy Apoptosis
Topotecan (hydrochloride) (Standard) is the analytical standard of Topotecan (hydrochloride). This product is intended for research and analytical applications. Topotecan Hydrochloride (SKF 104864A Hydrochloride) is a Topoisomerase I inhibitor with potent antineoplastic activities.

HY-N2331R

Proscillaridin A (Standard)	Apocynaceae Nerium indicum Mill. Plants Steroids Source Classification	Reference Standards Topoisomerase
Proscillaridin A (Standard) is the analytical standard of Proscillaridin A. This product is intended for research and analytical applications. Proscillaridin A is a potent poison of topoisomerase I/II activity with IC₅₀ values of 30 nM and 100 nM, respectively .

HY-16562AR

Irinotecan hydrochloride (Standard) (+)-Irinotecan hydrochloride (Standard); CPT-11 hydrochloride (Standard); VAL-413 (Standard)	Alkaloids Structural Classification Quinoline Alkaloids Camptotheca acuminata Decne. Nyssaceae Plants Source Classification	Reference Standards Topoisomerase Autophagy
Irinotecan (hydrochloride) (Standard) is the analytical standard of Irinotecan (hydrochloride). This product is intended for research and analytical applications. Irinotecan hydrochloride ((+)-Irinotecan hydrochloride) is a topoisomerase I inhibitor mainly used to treat colon cancer and rectal cancer .

HY-N0275R

(±)-10-Hydroxycamptothecin (Standard) (±)-10-HCPT (Standard)	Alkaloids Structural Classification Monophenols Pyrrole Alkaloids Phenols Quinoline Alkaloids Camptotheca acuminata Decne. Nyssaceae Plants Source Classification	Topoisomerase Reference Standards
(±)-10-Hydroxycamptothecin (Standard) is the analytical standard of (±)-10-Hydroxycamptothecin. This product is intended for research and analytical applications. (±)-10-Hydroxycamptothecin is an indole alkaloid that inhibits the activity of topoisomerase I and has a broad spectrum of anticancer activity.

HY-116529

Lamellarin E	Alkaloids Microorganisms Other Alkaloids Source Classification	Others
Lamellarin E is a biologically active marine alkaloid, while the Lamellarin series of alkaloids show potential cytotoxicity, topoisomerase I inhibition, protein kinase inhibition, multidrug resistance reversal, and anti-HIV-1 activity .

HY-N11536

erythro-Austrobailignan-6	Saururaceae Saururus chinensis (Lour.) Baill. Lignans Phenylpropanoids Plants Source Classification	Topoisomerase Apoptosis
erythro-Austrobailignan-6 is an orally active anti-cancer agent. erythro-Austrobailignan-6 inhibits DNA *topoisomerase* I and II activity. erythro-Austrobailignan-6 induces cell apoptosis and increases phosphorylation of p38 and JNK .

HY-13555R

β-Lapachone (Standard) ARQ-501 (Standard); NSC-26326 (Standard)	Quinones Structural Classification other families Plants Naphthalene Quinones Source Classification	Indoleamine 2,3-Dioxygenase (IDO) Topoisomerase Autophagy Apoptosis Reference Standards
β-Lapachone (Standard) is the analytical standard of β-Lapachone. This product is intended for research and analytical applications. β-Lapachone (ARQ-501;NSC-26326) is a naturally occurring O-naphthoquinone, acts as a topoisomerase I inhibitor, and induces apoptosis by inhibiting cell cycle progression.

HY-W046353R

2-Methoxycinnamaldehyde (Standard) o-Methoxycinnamaldehyde (Standard)	Structural Classification Cinnamomum cassia (L.) D. Don Simple Phenylpropanols Phenylpropanoids Plants Lauraceae Source Classification	Reference Standards Apoptosis NF-κB Mitochondrial Metabolism Caspase Topoisomerase
2-Methoxycinnamaldehyde (Standard) is the analytical standard of 2-Methoxycinnamaldehyde. This product is intended for research and analytical applications. 2-Methoxycinnamaldehyde (o-Methoxycinnamaldehyde) is a natural compound that can be isolated from Cinnamomum cassia. 2-Methoxycinnamaldehyde inhibits *topoisomerase-I/II* and NF-κB signaling pathway, causes mitochondrial dysfunction, induces lysosomal vesiculation, thereby leading to DNA damage and cell apoptosis. 2-Methoxycinnamaldehyde exhibits antitumor effects .

Cat. No.	상품명	Chemical Structure

HY-13631AS

Exatecan-d5 mesylate
Exatecan-d₅ (DX8951f-d₅) mesylate is deuterium labeled Exatecan mesylate (HY-13631A). Exatecan mesylate is a *DNA topoisomerase* I inhibitor, with an IC₅₀** of 2.2 μM (0.975 μg/mL). Exatecan mesylate can be used in cancer research .

HY-13631DS

DXd-d5
DXd-d₅ is a deuterium labeled DXd. DXd is a potent DNA topoisomerase I inhibitor, with an IC₅₀ of 0.31 μM, used as a conjugated drug of HER2-targeting ADC (DS-8201a) .

HY-13704S

SN-38-d3
SN-38-d₃ is the deuterium labeled SN-38. SN-38 (NK012) is an active metabolite of the Topoisomerase I inhibitor Irinotecan. SN-38 (NK012) inhibits DNA and RNA synthesis with IC₅₀s of 0.077 and 1.3 μM, respectively .

HY-13566AS

Belotecan-d7 hydrochloride
Belotecan-d₇ (hydrochloride) is the deuterium labeled Belotecan hydrochloride. Belotecan hydrochloride (CKD-602 hydrochloride), a Topoisomerase I inhibitor, is a synthetic camptothecin derivative .

HY-16562S1

Irinotecan-d10 hydrochloride
Irinotecan-d₁₀ (hydrochloride) is the deuterium labeled Irinotecan. Irinotecan ((+)-Irinotecan) is a topoisomerase I inhibitor, preventing religation of the DNA strand by binding to topoisomerase I-DNA complex .

HY-16560S

Camptothecin-d5

Camptothecin-d₅ is the deuterium labeled Camptothecin. Camptothecin (CPT), a kind of alkaloid, is a DNA topoisomerase I (Topo I) inhibitor with an IC₅₀ of 679 nM . Camptothecin (CPT) exhibits powerful antineoplastic activity against colorectal, breast, lung and ovarian cancers, modulates hypoxia-inducible factor-1α (HIF-1α) activity by changing microRNAs (miRNA) expression patterns in human cancer cells .

HY-126373S1

SN-38 glucuronide-13C6
SN-38 glucuronide- ¹³C₆ is the ¹³C labeled SN-38 glucuronide (HY-126373) . SN-38 glucuronide is an inactive metabolite of the cancer agent Irinotecan. Irinotecan is a topoisomerase I inhibitor which can be used for researching colon and rectal cancer .

HY-W744739

Betulinic acid-d3
Betulinic acid-d₃ (Lupatic acid-d₃) is a deuterium labeled Betulinic acid (HY-10529). Betulinic acid is a natural pentacyclic triterpenoid, acts as a eukaryotic topoisomerase I inhibitor, with an IC₅₀ of 5 μM, and possesses anti-HIV, anti-malarial, anti-inflammatory and anti-tumor properties . Betulinic acid can cross the blood-brain barrier.

HY-13768S1

Topotecan-d6
Topotecan-d₆ is the deuterium labeled Topotecan. Topotecan (SKF 104864A; NSC 609669) is a Topoisomerase I inhibitor. The IC₅₀ values of Topotecan at 24 h are 2.73±0.25 μM of U251 cells, 2.95±0.23 μM of U87 cells, 5.46±0.41 μM of GSCs-U251 and 5.95 μM of GSCs-U87 .

HY-W653896

Alternariol-d2

Alternariol-d₂ is deuterium labeled Alternariol. Alternariol is an orally ingested mycotoxin produced by Alternaria, capable of inhibiting the activity of topoisomerase I and II (topoisomerase I, topoisomerase II). Alternariol has weak estrogenic (Estrogen Receptor/ERR) and androgen/antiandrogen (Androgen Receptor) effects. Alternariol can induce apoptosis, trigger cell cycle arrest, suppress innate immune responses, and exhibit anti-tumor activity. Alternariol has genotoxic, mutagenic, and endocrine-disrupting effects .

HY-13631AS1

Exatecan-d3 mesylate
Exatecan-d₃ (DX8951f-d₃) mesylate is deuterium-labeled Exatecan mesylate (HY-13631A). Exatecan mesylate is a DNA topoisomerase I inhibitor, with an IC₅₀ of 0.975 μg/mL .

HY-16562S

Irinotecan-d10
Irinotecan-d₁₀ is a deuterium labeled Irinotecan ((+)-Irinotecan). Irinotecan ((+)-Irinotecan) is a topoisomerase I inhibitor, preventing religation of the DNA strand by binding to topoisomerase I-DNA complex .

HY-16562AS

Irinotecan-d5 hydrochloride
Irinotecan-d₅ hydrochloride is deuterated labeled Irinotecan hydrochloride (HY-16562A). Irinotecan hydrochloride ((+)-Irinotecan hydrochloride) is a topoisomerase I inhibitor mainly used to treat colon cancer and rectal cancer .

HY-W653919

SN-38 glucuronide-d3
SN-38 glucuronide-d₃ is deuterium labeled SN-38 glucuronide. SN-38 glucuronide is an inactive metabolite of the anticancer active molecule Irinotecan (HY-16562) and has toxic effects on the gastrointestinal tract. Irinotecan is a topoisomerase I inhibitor which can be used for researching colon and rectal cancer .

HY-132561S

RPR121056-d3
RPR121056-d3 is the deuterium labeled RPR121056. RPR121056 is a metabolite of Irinotecan (HY-16562), which is generated by CYP3A4. Irinotecan (CPT-11) is an antineoplastic agent that inhibits topoisomerase type I, causing cell death, and is widely used in the study of colorectal cancer. Irinotecan also directly inhibits AChE .

HY-13768S

Topotecan-d5
Topotecan-d₅ is the deuterium labeled Topotecan. Topotecan (SKF 104864A; NSC 609669) is a Topoisomerase I inhibitor. The IC₅₀ values of Topotecan at 24 h are 2.73±0.25 μM of U251 cells, 2.95±0.23 μM of U87 cells, 5.46±0.41 μM of GSCs-U251 and 5.95±0.24 μM of GSCs-U87 .

HY-N0095S

(S)-10-Hydroxycamptothecin-d5
(S)-10-Hydroxycamptothecin-d₅ (10-HCPT-d₅) is the deuterium labeled (S)-10-Hydroxycamptothecin. (S)-10-Hydroxycamptothecin (10-HCPT) is a DNA topoisomerase I inhibitor. (S)-10-Hydroxycamptothecin exhibits a remarkable apoptosis-inducing effect. (S)-10-Hydroxycamptothecin has the potential for hepatoma, gastric carcinoma, colon cancer and leukaemia research .

HY-B0147S1

Pefloxacin-d3

Pefloxacin-d₃ (Pefloxacinium-d₃) is the deuterium labeled Pefloxacin (HY-B0147). Pefloxacin (Pefloxacinium) is a broad spectrum antibiotic. Pefloxacin blocks DNA replication by inhibiting DNA gyrase. Pefloxacin inhibits DNA relaxation catalyzed by topoisomerase I with an IC₅₀ of 45 μg/mL. Pefloxacin exhibits antibacterial activity against Escherichia coli, Pseudomonas aeruginosa, and Bacteroides fragilis with MIC₉₀s of 0.12, 4, and 16 mg/L, respectively. Pefloxacin has anti-Plasmodium yoelii infection activity. Pefloxacin increase UVA-induced edema and immunesuppression. Pefloxacin can be used for infection studies .

HY-B0147S

Pefloxacin-d5

Pefloxacin-d₅ (Pefloxacinium-d₅) is the deuterium labeled Pefloxacin (HY-B0147). Pefloxacin (Pefloxacinium) is a broad spectrum antibiotic. Pefloxacin blocks DNA replication by inhibiting DNA gyrase. Pefloxacin inhibits DNA relaxation catalyzed by topoisomerase I with an IC₅₀ of 45 μg/mL. Pefloxacin exhibits antibacterial activity against Escherichia coli, Pseudomonas aeruginosa, and Bacteroides fragilis with MIC₉₀s of 0.12, 4, and 16 mg/L, respectively. Pefloxacin has anti-Plasmodium yoelii infection activity. Pefloxacin increase UVA-induced edema and immunesuppression. Pefloxacin can be used for infection studies .

HY-42487S1

Exatecan Intermediate 1-d2
Exatecan Intermediate 1-d₂ is the deuterium labeled Exatecan Intermediate 1 (HY-42487). Exatecan Intermediate 1 (compound 6) is an intermediate of Exatecan (HY-13631). Exatecan is a DNA topoisomerase I inhibitor with anticancer effects.

Targets Recommended: Topoisomerase

Cat. No.	상품명	Target	연구분야	Chemical Structure

HY-13631AG

Exatecan mesylate DX8951f	ADC Payload Topoisomerase	Cancer
Exatecan mesylate (DX8951f ) GMP is a GMP-class Exatecan (HY-13631). Exatecan is a *DNA topoisomerase* I inhibitor, with an IC₅₀** of 2.2 μM (0.975 μg/mL), and can be used in cancer research .

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