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topoisomerases

" in MedChemExpress (MCE) Product Catalog:

By Targets:	Topoisomerase (309) ADC Antibody (1) ADC Cytotoxin (43) Akt (2) AMPK (3) Antibiotic (71) Antibody-Drug Conjugates (ADCs) (3) AP-1 (2) Apoptosis (79) ATM/ATR (1) Autophagy (40) Bacterial (79) Biochemical Assay Reagents (2) Btk (1) c-Myc (3) Casein Kinase (1) Caspase (4) Cathepsin (1) Cholinesterase (ChE) (1) Cuproptosis (1) Cytochrome P450 (1) DNA-PK (2) DNA/RNA Synthesis (33) Drug Metabolite (1) Drug-Linker Conjugates for ADC (30) EGFR (6) Endogenous Metabolite (11) ERK (1) FAK (1) Fatty Acid Synthase (FASN) (1) FLT3 (1) Fungal (8) GLUT (2) HBV (3) HDAC (1) HIV (5) HSP (2) Influenza Virus (4) Isotope-Labeled Compounds (12) JNK (2) Keap1-Nrf2 (1) MDM-2/p53 (1) MicroRNA (6) Microtubule/Tubulin (4) Mitochondrial Metabolism (5) Mitophagy (7) Molecular Glues (1) Monoamine Oxidase (2) Necroptosis (1) NF-κB (4) NO Synthase (1) Orthopoxvirus (10) P2X Receptor (1) p38 MAPK (1) Parasite (14) Phosphatase (3) PI3K (3) PKC (6) Proteasome (2) Reactive Oxygen Species (12) Reverse Transcriptase (3) ROS Kinase (1) SARS-CoV (3) Sirtuin (3) STAT (1) TMV (1) TROP2 (1) VEGFR (2)
By Research Areas:	Cancer (300) Cardiovascular Disease (6) Infection (105) Inflammation/Immunology (12) Metabolic Disease (5) Neurological Disease (8)
Click Chemistry:	DBCO (1)

368

Inhibitors & Agonists

Fluorescent Dye

Biochemical Assay Reagents

Inhibitory Antibodies

Natural
Products

Isotope-Labeled Compounds

Click Chemistry

Targets Recommended: Topoisomerase

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

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-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 .

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-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-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-162342

Topoisomerase I inhibitor 14	Topoisomerase	Cancer
Topoisomerase I inhibitor 14 (Compound 4h) is an inhibitor for Topoisomerase I. Topoisomerase I inhibitor 14 inhibits proliferation of A549 and C6 with IC₅₀s of 4.56 μM and 13.17 μM, without significant toxicity in healthy cells NIH3T3 (IC₅₀ is 74.44 μM), which exhibits anticancer potency .

HY-W278582

Topoisomerase II inhibitor 14	Topoisomerase Apoptosis	Cancer
Topoisomerase II inhibitor 14 (compound 2f) is a potent inhibtor of Topoisomerase II, with anticancer activity. Topoisomerase II inhibitor 14 induces apoptosis, and arrests cell cycle at S phase. Topoisomerase II inhibitor 14 exhibits antioxidant effect and decreases the level of GSH, MDA, and NO .

HY-163118

Topoisomerase II inhibitor 17	Topoisomerase Apoptosis	Cancer
Topoisomerase II inhibitor 17 (compound 4c) is an inhibitor of thiazolopyrimidine topoisomerase (Topoisomerase) Top II (IC₅₀: 0.23 μM). Topoisomerase II inhibitor 17 can significantly cause cell cycle disruption and apoptosis .

HY-162381

Topoisomerase II inhibitor 19	Topoisomerase	Cancer
Topoisomerase II inhibitor 19 (compound 5h) is a DNA intercalator and topoisomerase II inhibitor (IC₅₀ value of 0.34 μM). Topoisomerase II inhibitor 19 would induce detectable potent damage in ctDNA .

HY-155645

Topoisomerase II inhibitor 15	Topoisomerase Apoptosis	Cancer
Topoisomerase II inhibitor 15 (compound 2g) is a Topoisomerase II inhibitor. Topoisomerase II inhibitor 15 potently is an apoptotic inducer with greater selectivity against head and neck tumors .

HY-107133

Simmitecan hydrochloride	Topoisomerase Cytochrome P450	Cancer
Simmitecan hydrochloride, a 9-substituted lipophilic Camptothecin (HY-16560) derivative, is a potent topoisomerase I inhibitor. Simmitecan hydrochloride is an anticancer agent .

HY-149309

Topoisomerase inhibitor 2	Topoisomerase	Infection
Topoisomerase inhibitor 2 (18C) is a bacterial topoisomeraseinhibitor that exhibits potent broad-spectrum activity against multidrug-resistant Gram-negative bacteria .

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 .

HY-19024

Merbarone NSC 336628	Topoisomerase	Cancer
Merbarone (NSC 336628) is an orally active inhibitor of topoisomerase II. Merbarone acts primarily by blocking topoisomerase II-mediated DNA cleavage without stabilizing topo II-DNA covalent complexes. Merbarone is an anticancer agent .

HY-162101

Topoisomerase inhibitor 3

Topoisomerase Cancer

Topoisomerase inhibitor 3 (compound 9) is a potent inhibitor of Topoisomerase. Topoisomerase inhibitor 3 has anti-tumor activity .

Topoisomerase inhibitor 3	Topoisomerase	Cancer
Topoisomerase inhibitor 3 (compound 9) is a potent inhibitor of *Topoisomerase. Topoisomerase* inhibitor 3 has anti-tumor activity .

HY-125930

T-2513	Topoisomerase DNA/RNA Synthesis	Cancer
T-2513 is a selective topoisomerase I inhibitor. T-2513 binds covalently to and stabilizes the topoisomerase I-DNA complex and inhibits DNA replication and RNA synthesis, ultimately leading to cell death .

HY-125930A

T-2513 hydrochloride	Topoisomerase DNA/RNA Synthesis	Cancer
T-2513 hydrochloride is a selective topoisomerase I inhibitor. T-2513 hydrochloride binds covalently to and stabilizes the topoisomerase I-DNA complex and inhibits DNA replication and RNA synthesis, ultimately leading to cell death .

HY-113642

CP-67804	Topoisomerase	Cancer
CP-67804 is a quinolone derivative, is a topoisomerase II-targeted agent. CP-67804 effectively enhances DNA cleavage mediated by eukaryotic topoisomerase II. CP-67804 has potential as an antineoplastic agent .

HY-N6880

Rabdosiin (+)-Rabdosiin	HIV Topoisomerase	Infection Inflammation/Immunology
Rabdosiin is a tetramer of caffeic acid isolated from the stem of Ocimum sanctum. Rabdosiin possess anti-allergic activity, anti-HIV activity and inhibition on DNA topoisomerase .

HY-B0063

Gimatecan

ST1481
Topoisomerase Cancer

Gimatecan (ST1481) is a potent topoisomerase I inhibitor. Gimatecan is an orally bioavailable camptothecin analogue with antitumor activity .

Gimatecan ST1481	Topoisomerase	Cancer
Gimatecan (ST1481) is a potent topoisomerase I inhibitor. Gimatecan is an orally bioavailable camptothecin analogue with antitumor activity .

HY-147861

Topoisomerase II inhibitor 11	Topoisomerase Apoptosis	Cancer
Topoisomerase II inhibitor 11 (compound 3d) is a potent Topoisomerase II inhibitor, with an IC₅₀ of 2.89 μM. Topoisomerase II inhibitor 11 shows 92.46% inhibition on renal cancer cell line A498 with an IC₅₀ of 3.5 μM. Topoisomerase II inhibitor 11 causes cell cycle arrest at the G2/M phase leading to cell proliferation inhibition and pro-apoptotic activity .

HY-146316

Topoisomerase II inhibitor 6	Topoisomerase	Cancer
Topoisomerase II inhibitor 6 (Compound 5), a tryptanthrin derivative, is a potent and selective inhibitor of topoisomerase II. Topoisomerase II inhibitor 6 exhibits antiproliferative activity on different tumor cell lines. Topoisomerase II inhibitor 6 blocks the cell cycle of CCRF-CEM in the G2 phase and induces DNA DSB. Topoisomerase II inhibitor 6 has the potential for the research of cancer diseases .

HY-155693

Topoisomerase II inhibitor 16	Topoisomerase Parasite	Infection
Topoisomerase II inhibitor 16 (compound CT3) is a selective, orally active, brain-penetrant and irreversible *trypanosomal topoisomerase* II** inhibitor by stabilizing double-stranded DNA:enzyme cleavage complexes. Topoisomerase II inhibitor 16 has the potential for Chagas disease research .

HY-N10367

Corydamine

Topoisomerase Cancer

Corydamine, 3-arylisoquinoline alkaloid, is a potent DNA topoisomerase I/II inhibitor. Corydamine has anti-cancer activity .

Corydamine	Topoisomerase	Cancer
Corydamine, 3-arylisoquinoline alkaloid, is a potent *DNA topoisomerase* I/II** inhibitor. Corydamine has anti-cancer activity .

HY-N12129

6,6′-Dihydroxythiobinupharidine	Cathepsin	Others
6,6′-Dihydroxythiobinupharidine is a cysteine proteases inhibitor. 6,6′-Dihydroxythiobinupharidine can enhance DNA cleavage mediated by human topoisomerase IIα and IIβ ~8-fold and ~3-fold, respectively .

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-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-162271

Antibacterial agent 187	Topoisomerase Fungal	Infection
Antibacterial agent 187 (IKE7) is a derivative containing imidazole and triazolacridone structures that target yeast topoisomerase II. Antibacterial agent 187 has antifungal activity and MIC value of resistance to fluconazole (HY-B0101) is 32-64 μg/mL .

HY-152965

Biotin-doxorubicin	Topoisomerase Antibiotic Apoptosis Autophagy	Infection Cancer
Biotin-doxorubicin is a Biotin-labeled Doxorubicin. Doxorubicin, a broad-spectrum anthracycline antibiotic, is a topoisomerase II inhibitor .

HY-W015490

1,4-Naphthoquinone 2 Publications Verification	Monoamine Oxidase	Cancer
1,4-Naphthoquinone is a potential pharmacophore for inhibition of both MAO (monoamine oxidase) and DNA topoisomerase activities, this latter associated with antitumor activity .

HY-145397

(4-NH2)-Exatecan	ADC Cytotoxin Topoisomerase	Cancer
(4-NH2)-Exatecan, a *topoisomerase* inhibitor, is a derivative of Exatecan. (4-NH2)-Exatecan can be used in the synthesis of antibody-drug conjugates (ADCs) (US20200306243A1, compound A) .

HY-N6054

Niranthin	Parasite Topoisomerase	Infection Inflammation/Immunology
Niranthin, a lignan with a wide spectrum of pharmacological activities. Niranthin is a potent and non-competitive inhibitor of heterodimeric type IB topoisomerase of L. donovani. Niranthin can be used for the research of drug-resistant leishmaniasis research.

HY-119425

Razoxane

ICRF 159
Topoisomerase Cancer

Razoxane (ICRF 159) is an antiangiogenic topoisomerase II inhibitor, can be used for the research of renal cell carcinoma (RCC) .
HY-13727A

Pixantrone

2 Publications Verification

BBR 2778
Topoisomerase Cancer

Pixantrone (BBR 2778) dimaleate is a topoisomerase II inhibitor and DNA intercalator, with anti-tumor activity.

Razoxane ICRF 159	Topoisomerase	Cancer
Razoxane (ICRF 159) is an antiangiogenic topoisomerase II inhibitor, can be used for the research of renal cell carcinoma (RCC) .

Pixantrone 2 Publications Verification BBR 2778	Topoisomerase	Cancer
Pixantrone (BBR 2778) dimaleate is a topoisomerase II inhibitor and DNA intercalator, with anti-tumor activity.

HY-148719

ARN24139	Topoisomerase	Cancer
ARN24139(compound 3f) is a topoisomerase II (topoII) inhibitor with the IC₅₀ of 7.3 μM. ARN24139 can inhibit cancer cell proliferation and is well tolerated in vivo .

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-13727

Pixantrone free base BBR 2778 free base	Topoisomerase	Cancer
Pixantrone (BBR 2778 (free base)), a mitoxantrone analog, is a topoisomerase II inhibitor and DNA intercalator, with anti-tumor activity.

HY-12888

AZD5099	Topoisomerase Bacterial	Infection
AZD5099, an antibacterial agent, is a potent and selective *bacterial topoisomerase* II inhibitor. AZD5099 potently inhibits the infections caused by Gram-positive and fastidious Gram-negative bacteria** .

HY-100777

DACA	Topoisomerase	Cancer
DACA inhibits two essential nuclear enzymes in vitro, *DNA topoisomerase* I and DNA topoisomerase (topo) II*. DACA stabilises topo* I, topo II alpha, and topo II beta cleavable complexes in human leukaemia CCRF-CEM cells .

HY-13727B

Pixantrone hydrochloride BBR 2778 hydrochloride	Topoisomerase	Cancer
Pixantrone (BBR 2778 (free base)) hydrochloride, a mitoxantrone analog, is a topoisomerase II inhibitor and DNA intercalator, with anti-tumor activity .

HY-N0872

Isosteviol (-)-Isosteviol; iso-Steviol	Reactive Oxygen Species Topoisomerase	Cardiovascular Disease Cancer
Isosteviol ((-)-Isosteviol) is a derivative of Stevioside through acid catalyzed hydrolysis of Stevioside. Isosteviol inhibits DNA polymerase and DNA topoisomerase and has antibacterial, anticancer and anti-tuberculosis effects .

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 antibody agent conjugate (ADC) .

HY-118581

Coralyne chloride	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-13727AR

Pixantrone (Standard)	Topoisomerase	Cancer
Pixantrone (Standard) is the analytical standard of Pixantrone. This product is intended for research and analytical applications. Pixantrone (BBR 2778) dimaleate is a topoisomerase II inhibitor and DNA intercalator, with anti-tumor activity.

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-139909

CL2E-SN38	Drug-Linker Conjugates for ADC	Cancer
CL2E-SN-38, a highly releasable and structurally stable antibody-SN-38-conjugate, is a part of the antibody drug conjugate (ADC). SN-38, the active metabolite of Irinotecan from camptothecins, is an Topoisomerase I inhibitor .

HY-139909A

CL2E-SN38 TFA	Drug-Linker Conjugates for ADC	Cancer
CL2E-SN-38 TFA, a highly releasable and structurally stable antibody-SN-38-conjugate, is a part of the antibody drug conjugate (ADC). SN-38, the active metabolite of Irinotecan from camptothecins, is an Topoisomerase I inhibitor .

HY-156723

9-Chloromethyl-10-hydroxy-11-F-Camptothecin	Topoisomerase	Cancer
9-Chloromethyl-10-hydroxy-11-F-Camptothecin is a novel camptothecin derivatives. 9-Chloromethyl-10-hydroxy-11-F-Camptothecin is a *DNA topoisomerase* I (Topo I) inhibitor, can be used in anticancer** research .

HY-143484

844-TFM	Bacterial	Infection
844-TFM is a NBTI (novel bacterial topoisomerase inhibitor) DNA gyrase inhibitor, with an IC₅₀ of 1.5 μM. 844-TFM exhibits bactericidal properties against M. abscessus .

HY-137466

ARN-21934	Topoisomerase	Cancer
ARN-21934 is a potent, highly selective, blood-brain barrier (BBB) penetrant inhibitor for *human topoisomerase* II α over β. ARN-21934 inhibits DNA relaxation with an IC₅₀** of 2 μM as compared to the anticancer agent Etoposide (IC₅₀=120 μM). ARN-21934 exhibits a favorable in vivo pharmacokinetic profile and is a promising lead compound for anticancer research .

Cat. No.	Product Name	Category	Target	Chemical Structure

HY-N6880

Rabdosiin (+)-Rabdosiin	Structural Classification Classification of Application Fields Labiatae Lignans Phenylpropanoids Balsamorhiza macrophylla Nutt. Plants Inflammation/Immunology Disease Research Fields	HIV Topoisomerase
Rabdosiin is a tetramer of caffeic acid isolated from the stem of Ocimum sanctum. Rabdosiin possess anti-allergic activity, anti-HIV activity and inhibition on DNA topoisomerase .

HY-N3488

Isodiospyrin	Quinones Structural Classification other families Diospyros virginiana L. Source classification Benzene Quinones Plants	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-116933

Murrayanol	Alkaloids Structural Classification 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-N10367

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

HY-N12129

6,6′-Dihydroxythiobinupharidine	Structural Classification Alkaloids Terpenoids Other Alkaloids Sesquiterpenes Source classification Plants Nuphar pumila (Timm) de Candolle Nymphaeaceae	Cathepsin
6,6′-Dihydroxythiobinupharidine is a cysteine proteases inhibitor. 6,6′-Dihydroxythiobinupharidine can enhance DNA cleavage mediated by human topoisomerase IIα and IIβ ~8-fold and ~3-fold, respectively .

HY-N6054

Niranthin	Infection Classification of Application Fields Phyllanthus amarus chumacher & Thonning Source classification Lignans Euphorbiaceae Phenylpropanoids Plants Inflammation/Immunology Disease Research Fields	Parasite Topoisomerase
Niranthin, a lignan with a wide spectrum of pharmacological activities. Niranthin is a potent and non-competitive inhibitor of heterodimeric type IB topoisomerase of L. donovani. Niranthin can be used for the research of drug-resistant leishmaniasis research.

HY-N0872

Isosteviol (-)-Isosteviol; iso-Steviol	other families Classification of Application Fields Terpenoids Source classification Diterpenoids Plants Disease Research Fields Cancer	Reactive Oxygen Species Topoisomerase
Isosteviol ((-)-Isosteviol) is a derivative of Stevioside through acid catalyzed hydrolysis of Stevioside. Isosteviol inhibits DNA polymerase and DNA topoisomerase and has antibacterial, anticancer and anti-tuberculosis effects .

HY-N12840

Logmalicid B	Structural Classification Iridoids Cornaceae Cornus officinalis Sieb. et Zucc. Terpenoids Source classification Plants	Others
Logmalicid B is an iridoid glycoside compound that can be isolated from Cornus officinalis and can be used in diabetes research .

HY-16560

Camptothecin 35+ Cited Publications Campathecin; (S)-(+)-Camptothecin; CPT	Infection Alkaloids Structural Classification Classification of Application Fields Source classification Quinoline Alkaloids Camptotheca acuminata Decne. Plants Nyssaceae Disease Research Fields	Topoisomerase ADC Cytotoxin 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-19825

Rebeccamycin	Structural Classification Microorganisms Classification of Application Fields Antibiotics Source classification Disease Research Anticancer Disease Research Fields Other Antibiotics Cancer	Topoisomerase ADC Cytotoxin 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-N6800A

Netropsin dihydrochloride	Classification of Application Fields Inflammation/Immunology Disease Research Fields	DNA/RNA Synthesis Bacterial Influenza Virus Antibiotic Orthopoxvirus
Netropsin dihydrochloride is a small-molecule MGB (minor-groove binder), 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 exhibits antiviral activity against the vaccinia virus .

HY-121309

Doxorubicinone Adriamycin aglycone; Adriamycinone	Quinones Structural Classification Classification of Application Fields Anthraquinones Source classification Endogenous metabolite Disease Research Fields Cancer	Endogenous Metabolite
Doxorubicinone is a metabolite of an anti-cancer chemotherapy agent Doxorubicin . Doxorubicin is a potent human *DNA topoisomerase* I and topoisomerase II inhibitor with IC₅₀**s of 0.8 μM and 2.67 μM, respectively.

HY-N6714

Alternariol	Infection Microorganisms Classification of Application Fields Source classification Phenols Polyphenols Disease Research Fields	Topoisomerase
Alternariol is a mycotoxin produced by Alternaria species. AOH inhibits the catalytic activity of topoisomerase I and topoisomerase II enzymes . Alternariol exhibits a variety of therapeutic and biological properties such as phytotoxicity, cytotoxicity, anti-HIV, anti-cancer, and anti-microbial properties .

HY-119458

Luotonin A	Structural Classification Alkaloids Peganum nigellastrum Bunge Zygophyllaceae Source classification Quinoline Alkaloids Plants	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-15552

Podofilox 3 Publications Verification Podophyllotoxin	Classification of Application Fields Source classification Lignans Dysosma versipellis (Hance) M. Cheng ex Ying Phenylpropanoids Plants Berberidaceae Disease Research Fields Cancer	Microtubule/Tubulin
Podofilox (Podophyllotoxin) is a potent inhibitor of microtubule assembly and DNA topoisomerase II.

HY-13768A

Topotecan hydrochloride 15+ Cited Publications SKF 104864A hydrochloride; NSC 609669 hydrochloride	Alkaloids Structural Classification Monophenols Classification of Application Fields Source classification Phenols Quinoline Alkaloids Camptotheca acuminata Decne. Plants Nyssaceae Disease Research Fields Cancer	Topoisomerase Autophagy Apoptosis
Topotecan Hydrochloride (SKF 104864A Hydrochloride) is a Topoisomerase I inhibitor with potent antineoplastic activities.

HY-N10115

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

HY-N8473

Pericosine A (+)-Pericosine A	Structural Classification Natural Products Microorganisms Source classification	Topoisomerase
Pericosine A ((+)-Pericosine A) is a topoisomerase II (Topoisomerase II) inhibitor that can be isolated from the Periconia byssoides strain. Pericosine A has significant antitumor activity in vitro and in vivo and can be used in cancer research. Pericosine A also inhibits the protein kinase epidermal growth factor receptor .

HY-15753

Ellipticine 3 Publications Verification NSC 71795	Apocynaceae Alkaloids Classification of Application Fields Source classification Plants Amsonia elliptica (Thunberg ex Murray) Roemer & Schultes Disease Research Fields Indole Alkaloids Cancer	Topoisomerase
Ellipticine (NSC 71795) is a potent antineoplastic agent; inhibits *DNA topoisomerase* II** activities.

HY-15753A

Ellipticine hydrochloride 3 Publications Verification NSC 71795 hydrochloride	Apocynaceae Alkaloids Structural Classification Classification of Application Fields Source classification Plants Amsonia elliptica (Thunberg ex Murray) Roemer & Schultes Disease Research Fields Indole Alkaloids Cancer	Topoisomerase
Ellipticine (NSC 71795) hydrochloride is a potent antineoplastic agent; inhibits *DNA topoisomerase* II** activities.

HY-16562A

Irinotecan hydrochloride 35+ Cited Publications (+)-Irinotecan hydrochloride; CPT-11 hydrochloride; VAL-413	Alkaloids Structural Classification Classification of Application Fields Source classification Quinoline Alkaloids Camptotheca acuminata Decne. Plants Nyssaceae Disease Research Fields Cancer	Topoisomerase Autophagy
Irinotecan hydrochloride ((+)-Irinotecan hydrochloride) is a topoisomerase I inhibitor mainly used to treat colon cancer and rectal cancer .

HY-N2331

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

HY-100309

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

HY-N0275

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

HY-N5038

Mauritianin	Flavonols Classification of Application Fields Source classification Erythrina stricta Roxb. Plants Compositae Acalypha indica Linn. Flavonoids Phenols Polyphenols Euphorbiaceae Disease Research Fields Cancer	Topoisomerase
Mauritianin is a kaempferol glycoside isolated from the flowers and leaves of Acalypha indica. Mauritianin is a topoisomerase I inhibitor .

HY-N12747

Dichlorogelignate	Structural Classification Source classification Phenols Polyphenols Plants Boraginaceae Arnebia euchroma (Royle) Johnst.	Topoisomerase
Dichlorogelignate (compound 4) is a selective inhibitor of topoisomerase II (Topo II). Dichlorogelignate has 100% inhibition at 50 μM .

HY-15142

Doxorubicin hydrochloride Maximum Cited Publications 367 Publications Verification Hydroxydaunorubicin hydrochloride	Infection Quinones Structural Classification Microorganisms Classification of Application Fields Anthraquinones Source classification Disease Research Fields	Topoisomerase ADC Cytotoxin AMPK Autophagy Apoptosis HIV HBV Mitophagy Antibiotic Bacterial
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-18258

Berberine chloride 35+ Cited Publications Natural Yellow 18 chloride	Alkaloids Structural Classification Phellodendron amurense Rupr. Classification of Application Fields Source classification Rutaceae Plants Isoquinoline Alkaloids Disease Research Fields Biological Pesticide Research Cancer Agricultural Research	Topoisomerase Autophagy Bacterial Reactive Oxygen Species Antibiotic Endogenous Metabolite Parasite
Berberine chloride is an alkaloid that acts as an antibiotic. Berberine chloride induces reactive oxygen species (ROS) generation and inhibits DNA topoisomerase. Antineoplastic properties .

HY-N9500

Ganoderic acid X	Triterpenes Structural Classification Microorganisms Terpenoids Source classification	Apoptosis Topoisomerase
Ganoderic acid X is a lanostanoid triterpene that can be extracted from Ganoderma amboinense. Ganoderic acid X inhibits *topoisomerases* and induces apoptosis of cancer cells .

HY-13768AR

Topotecan hydrochloride (Standard)	Alkaloids Structural Classification Monophenols Source classification Phenols Quinoline Alkaloids Camptotheca acuminata Decne. Nyssaceae Plants	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-17577

Berberine chloride hydrate 35+ Cited Publications Natural Yellow 18 chloride hydrate	Alkaloids Structural Classification Classification of Application Fields Source classification Ranunculaceae Coptis chinensis Franch. Plants Isoquinoline Alkaloids Disease Research Fields Cancer	Topoisomerase Autophagy Bacterial Reactive Oxygen Species Antibiotic Endogenous Metabolite Parasite
Berberine chloride hydrate (Natural Yellow 18 chloride hydrate) is an alkaloid that acts as an antibiotic. Berberine chloride hydrate induces reactive oxygen species (ROS) generation and inhibits DNA topoisomerase. Antineoplastic properties .

HY-N8745

α-Peltatin	Structural Classification Source classification Podophyllum peltatum L. Lignans Phenylpropanoids Plants Berberidaceae	Others
α-Peltatin is an aryl lignan. α-Peltatin has anticancer and antifungal activity. α-Peltatin inhibits DNA topoisomerase and tubulin polymerization .

HY-15142A

Doxorubicin Hydroxydaunorubicin	Infection Quinones Structural Classification Microorganisms Classification of Application Fields Anthraquinones Source classification Phenols Polyphenols Disease Research Fields	ADC Cytotoxin Antibiotic Bacterial Topoisomerase AMPK HIV Autophagy Mitophagy Apoptosis HBV
Doxorubicin (Hydroxydaunorubicin), a broad-spectrum anthracycline antibiotic with cytotoxic properties, is an anti-cancer chemotherapy agent. Doxorubicin has fluorescence properties. Doxorubicin inhibits topoisomerase II with an IC₅₀ of 2.67 μM, thus stopping DNA replication. Doxorubicin reduces basal phosphorylation of AMPK and its downstream target acetyl-CoA carboxylase. Doxorubicin induces apoptosis and autophagy . Doxorubicin inhibits human *DNA topoisomerase* I with an IC₅₀** of 0.8 μM .

HY-15142R

Doxorubicin hydrochloride (Standard)	Quinones Structural Classification Microorganisms Anthraquinones Source classification	Topoisomerase ADC Cytotoxin AMPK Autophagy Apoptosis HIV HBV Mitophagy Antibiotic Bacterial
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-N6621

Hippeastrine	Alkaloids Pyrrole Alkaloids Classification of Application Fields Narcissus tazetta Linn. var. chinensis M.Roemer Source classification Plants Disease Research Fields Amaryllidaceae Cancer	Topoisomerase
Hippeastrine, an active alkaloid, exhibits a good dose-dependent inhibitory effect against topoisomerase I (Top I) with an IC₅₀ at 7.25 μg/mL. Antiproliferative and anticancer activities .

HY-N2063

12-Ethyl-9-hydroxycamptothecin	Alkaloids Structural Classification Monophenols other families Pyrrole Alkaloids Classification of Application Fields Source classification Other Diseases Phenols Quinoline Alkaloids Plants Disease Research Fields	Topoisomerase
12-Ethyl-9-hydroxycamptothecin is a derivative of Camptothecin. Camptothecin (CPT), a kind of alkaloid, is a DNA topoisomerase I (Topo I) inhibitor with an IC₅₀ of 679 nM .

HY-N2198

Podocarpusflavone A	Structural Classification Flavonoids Classification of Application Fields Guttiferae Source classification Phenols Polyphenols Plants Garcinia subelliptica Biflavones Disease Research Fields Cancer	Topoisomerase Apoptosis
Podocarpusflavone A is a DNA topoisomerase I inhibitor. Podocarpusflavone A has moderated anti-proliferative activity and induces cell apoptosis in MCF-7. Podocarpusflavone A is developing anti-tumor agents .

HY-122550

Artemisitene	Piscidia erythrina L. Terpenoids Sesquiterpenes Source classification Plants Compositae	Keap1-Nrf2 Topoisomerase Apoptosis
Artemisitene, a natural derivative of Artemisinin, is a Nrf2 activator with antioxidant and anticancer activities. Artemisitene activates Nrf2 by decreasing Nrf2 ubiquitination and increasing its stability .

HY-13555

β-Lapachone 5+ Cited Publications ARQ-501; NSC-26326	Quinones Structural Classification other families Classification of Application Fields Source classification Plants Naphthalene Quinones Disease Research Fields Cancer	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-10529

Betulinic acid 20+ Cited Publications Lupatic acid; Betulic acid	Infection Triterpenes Structural Classification other families Classification of Application Fields Terpenoids Source classification Plants Endogenous metabolite Inflammation/Immunology Disease Research Fields	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 .

HY-118726

Luotonin F	Structural Classification Alkaloids Peganum nigellastrum Bunge Zygophyllaceae Source classification Quinoline Alkaloids Plants	Topoisomerase
Luotonin F is an alkaloid found in the aerial parts of the P. nigellastrum Bunge. Luotonin F shows cytotoxic activity against mouse leukemia P-388 cells by inhibiting human topoisomerase II .

HY-13629

Etoposide 80+ Cited Publications VP-16; VP-16-213	Infection Structural Classification Monophenols Classification of Application Fields Sinopodophyllum hexandrum (Royle) Ying Source classification Lignans Phenols Phenylpropanoids Plants Berberidaceae Disease Research Fields	Topoisomerase Autophagy Mitophagy Bacterial Apoptosis Antibiotic
Etoposide (VP-16; VP-16-213) is an anti-cancer chemotherapy agent. Etoposide inhibits topoisomerase II, thus stopping DNA replication. Etoposide induces cell cycle arrest, apoptosis and autophagy .

HY-13704

SN-38 30+ Cited Publications 7-Ethyl-10-hydroxycamptothecin	Alkaloids Structural Classification Classification of Application Fields Labiatae Source classification Samanea saman (Jacq.) Merr. Quinoline Alkaloids Plants Disease Research Fields Cancer	Topoisomerase ADC Cytotoxin Autophagy
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 .

HY-13744

Rubitecan RFS 2000; 9-Nitrocamptothecin	Alkaloids Classification of Application Fields Source classification Quinoline Alkaloids Camptotheca acuminata Decne. Plants Nyssaceae Disease Research Fields 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-N6011

9-Methoxycamptothecin	Alkaloids Structural Classification Classification of Application Fields Source classification Pyridine Alkaloids Camptotheca acuminata Decne. Plants Nyssaceae Isoquinoline Alkaloids Disease Research Fields Cancer	Topoisomerase Apoptosis
9-Methoxycamptothecin (MCPT), isolated from Camptotheca acuminata, has antitumor activities through *topoisomerase* inhibition. 9-Methoxycamptothecin (MCPT) induces strong G2/M arrest and apoptosis in cancer .

HY-N6865

Groenlandicine	Alkaloids Piperidine Alkaloids Monophenols Classification of Application Fields Source classification Ranunculaceae Coptis chinensis Franch. Phenols Metabolic Disease Plants Isoquinoline Alkaloids Disease Research Fields	Topoisomerase
Groenlandicine is a protoberberine alkaloid isolated from Coptidis Rhizoma. Groenlandicine exhibits moderate inhibitory effect with IC₅₀ value of 154.2 μM for human recombinant aldose reductase (HRAR) . Groenlandicine selectively induces topoisomerase I-mediated DNA cleavage .

HY-N0716B

Berberine sulfate 30+ Cited Publications Natural Yellow 18 sulfate	Alkaloids Structural Classification Classification of Application Fields Coptis chinensis Franch. Ranunculaceae Source classification Plants Isoquinoline Alkaloids Inflammation/Immunology Disease Research Fields	Antibiotic Topoisomerase Autophagy Bacterial Reactive Oxygen Species Parasite Apoptosis PI3K Akt Caspase JNK AP-1 NF-κB
Berberine sulfate is an alkaloid isolated from the Chinese herbal medicine Huanglian, as an antibiotic. Berberine sulfate induces reactive oxygen species (ROS) generation and inhibits DNA topoisomerase. Berberine sulfate has antineoplastic properties. The sulfate form improves bioavailability .

HY-N11536

erythro-Austrobailignan-6	Structural Classification Saururaceae Saururus chinensis (Lour.) Baill. Source classification Lignans Phenylpropanoids Plants	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-B0398

Nalidixic acid 1 Publications Verification	Infection Structural Classification Microorganisms Classification of Application Fields Antibiotics Resistance Selection Source classification Antibacterial Disease Research Disease Research Fields Other Antibiotics	Bacterial Antibiotic Topoisomerase
Nalidixic acid, a quinolone antibiotic, is effective against both gram-positive and gram-negative bacteria. Nalidixic acid acts in a bacteriostatic manner in lower concentrations and is bactericidal in higher concentrations. Nalidixic acid inhibits a subunit of DNA gyrase and topoisomerase IV and reversibly blocks DNA replication in susceptible bacteria .

HY-A0210

Cerulenin 5 Publications Verification	Structural Classification Microorganisms Antifungal Classification of Application Fields Antibiotics Source classification Metabolic Disease Mammalian Cell Culture Disease Research Anticancer Disease Research Fields Other Antibiotics	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 .

Cat. No.	Product Name	Chemical Structure

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[1][2].

HY-13631AS

Exatecan-d5 mesylate

Exatecan-d₅ (mesylate) is deuterium labeled Exatecan mesylate. Exatecan mesylate is a DNA topoisomerase I inhibitor, with an IC50 of 0.975 μg/mL[1].

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[1].

HY-121309S

Doxorubicinone-d3
Doxorubicinone-d₃ is the deuterium labeled Doxorubicinone. Doxorubicinone is a metabolite of an anti-cancer chemotherapy agent Doxorubicin[1]. Doxorubicin is a potent human DNA topoisomerase I and topoisomerase II inhibitor with IC50s of 0.8 μM and 2.67 μM, respectively.

HY-15552S

Podofilox-d6

Podofilox-d₆ is the deuterium labeled Podofilox. Podofilox (Podophyllotoxin) is a potent inhibitor of microtubule assembly and DNA topoisomerase II[1][2].

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[1][2].

HY-10581AS

Gatifloxacin-d3 hydrochloride

Gatifloxacin-d₃ (hydrochloride) is the deuterium labeled Gatifloxacin (hydrochloride). Gatifloxacin hydrochloride (AM-1155; BMS-206584; PD135432) is a potent fluoroquinolone antibiotic with broad-spectrum antibacterial activity. Gatifloxacin hydrochloride inhibits bacterial type II topoisomerases (IC50=13.8 μg/ml for S. aureus topoisomerase IV) and E. coli DNA gyrase (IC50 = 0.109 μg/ml). Gatifloxacin hydrochloride can be used to treat bacterial conjunctivitis in vivo.

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-13562AS

Banoxantrone-d12 dihydrochloride
Banoxantrone-d₁₂ (dihydrochloride) is the deuterium labeled Banoxantrone dihydrochloride. Banoxantrone is a novel bioreductive agent that can be reduced to a stable, DNA-affinic compound AQ4, which is a potent topoisomerase II inhibitor.

HY-13562S

Banoxantrone-d12
Banoxantrone-d₁₂ is the deuterium labeled banoxantrone. Banoxantrone is a novel bioreductive agent that can be reduced to a stable, DNA-affinic compound AQ4, which is a potent topoisomerase II inhibitor.

HY-18258S

Berberine-d6 chloride
Berberine-d₆ (chloride) is the deuterium labeled Berberine chloride. Berberine chloride is an alkaloid that acts as an antibiotic. Berberine chloride induces reactive oxygen species (ROS) generation and inhibits DNA topoisomerase. Antineoplastic properties[1].

HY-B0526S

Flumequine-13C3
Flumequine- ¹³C₃ is the ¹³C₃ labeled Flumequine. Flumequine (R-802) is a quinolone antibiotic, and acts as a topoisomerase II inhibitor, with an IC50 of 15 μM (3.92 μg/mL).

HY-13502S

Mitoxantrone-d8
Mitoxantrone-d₈ (mitozantrone-d8) is the deuterium labeled Mitoxantrone. Mitoxantrone is a topoisomerase II inhibitor and also inhibits protein kinase C (PKC) activity with an IC50 of 8.5 μM[1][2].

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) [1].

HY-W015490S

1,4-Naphthoquinone-d6
1,4-Naphthoquinone-d₆ is the deuterium labeled 1,4-Naphthoquinone[1]. 1,4-Naphthoquinone is a potential pharmacophore for inhibition of both MAO (monoamine oxidase) and DNA topoisomerase activities, this latter associated with antitumor activity[2].

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-13629S1

Etoposide-13C,d3
Etoposide- ¹³C,d₃ is the ¹³C- and deuterium labeled Etoposide. Etoposide (VP-16; VP-16-213) is an anti-cancer chemotherapy agent. Etoposide inhibits topoisomerase II, thus stopping DNA replication. Etoposide induces cell cycle arrest, apoptosis and autophagy[1].

HY-B0398S

Nalidixic Acid-d5

Nalidixic Acid-d₅ is the deuterium labeled Nalidixic acid. Nalidixic acid, a quinolone antibiotic, is effective against both gram-positive and gram-negative bacteria. Nalidixic acid acts in a bacteriostatic manner in lower concentrations and is bactericidal in higher concentrations. Nalidixic acid inhibits a subunit of DNA gyrase and topoisomerase IV and reversibly blocks DNA replication in susceptible bacteria[1].

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[1][2][3][4].

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[1][2].

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[1]. 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[2][3].

HY-13502AS

Mitoxantrone-d8 dihydrochloride

Mitoxantrone-d₈ dihydrochloride is deuterated labeled Mitoxantrone dihydrochloride (HY-13502A). Mitoxantrone dihydrochloride is a potent topoisomerase II inhibitor. Mitoxantrone dihydrochloride also inhibits protein kinase C (PKC) activity with an IC₅₀ of 8.5 μM. Mitoxantrone dihydrochloride induces apoptosis of B-CLL (B-chronic lymphocytic leukaemia) cells. Mitoxantrone dihydrochloride shows antitumor activity . Mitoxantrone dihydrochloride also has anti-orthopoxvirus activity with EC₅₀s of 0.25 μM and and 0.8 μM for cowpox and monkeypox, respectively .

HY-B0268S1

Enoxacin-d8 hydrochloride

Enoxacin-d₈ (hydrochloride) is deuterium labeled Enoxacin. Enoxacin (AT 2266), a fluoroquinolone, interferes with DNA replication and inhibits bacterial DNA gyrase (IC50=126 µg/ml) and topoisomerase IV (IC50=26.5 µg/ml). Enoxacin is a miRNA processing activator and enhances siRNA-mediated mRNA degradation and promotes the biogenesis of endogenous miRNAs. Enoxacin has potent activities against gram-positive and -negative bacteria. Enoxacin is a cancer-specific growth inhibitor that acts by enhancing TAR RNA-binding protein 2 (TRBP)-mediated microRNA processing[1][2][3][4].

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