DNA/RNA Synthesis Inhibitor

GS-441524 (Standard) is the analytical standard of GS-441524 (HY-103586). GS-441524 is a potent, orally active and CNS-penetrant viral RNA-dependent RNA polymerase inhibitor. GS-441524 competes with natural nucleosides to block viral RNA transcription as an alternative substrate and RNA chain terminator. GS-441524 inhibits the replication of feline infectious peritonitis virus, African swine fever virus, and severe acute respiratory syndrome coronavirus 2. GS-441524 reduces viral RNA levels in cats. GS-441524 can be used in research related to feline infectious peritonitis, African swine fever, and coronavirus disease 2019 (COVID-19).

Bisucaberin is a natural siderophore, is a DNA synthesis inhibitor. Bisucaberin shows cytostasis for tumor cells. Bisucaberin sensitizes tumor cells to macrophage-mediated cytolysis.

Didox (Standard) is the analytical standard of Didox. This product is intended for research and analytical applications. Didox (NSC-324360) is a synthetic ribonucleotide reductase (RR) inhibitor.

NEU-4438 is an antimalarial agent. NEU-4438 inhibits DNA synthesis, reduces AMPK-γ, and increases Clathrin heavy chain. NEU-4438 exhibits antiparasitic activity against Trypanosoma brucei. NEU-4438 reduces trypanosome tissue burden in a chronic HAT mouse model.

3'-O-Acetyl-2'-deoxyadenosine-5'-O-triphosphate (sodium) (3'-O-Acetyl-dATP (sodium)) is an acetylated derivative of the purine nucleotide 2'-deoxyadenosine-5'-triphosphate (HY-136648). 3'-O-Acetyl-2'-deoxyadenosine-5'-O-triphosphate (sodium) can been used as a DNA synthesis chain termination reagent in Sanger sequencing.

5’CMPS (5’-O-Thiophosphonocytidine) is a 5’-CMP analog that is a potential competitive inhibitor or regulator of enzymes that interact with cytidine 5’phosphate.

Favipiravir-¹³C3 is the ¹³C labeled isotope of Favipiravir (HY-14768). Favipiravir (T-705) is a potent viral RNA polymerase inhibitor, it is phosphoribosylated by cellular enzymes to its active form, Favipiravir-ribofuranosyl-5′-triphosphate (RTP). Favipiravir-RTP inhibits the influenza viral RNA-dependent RNA polymerase (RdRP) activity with an IC₅₀ of 341 nM.

(-)-Enitociclib (Standard) is the analytical standard of (-)-Enitociclib (HY-103019B). This product is intended for research and analytical applications. (-)-Enitociclib ((R)-Enitociclib) is an enantiomer of Enitociclib (HY-103019E) with an optical rotation of (-). Enitociclib is a selective CDK9 inhibitor and apoptosis inducer. Enitociclib inhibits CDK9 activity and reduces the phosphorylation of Ser2 in the carboxyl-terminal domain (CTD) of RNA polymerase Pol II, thereby downregulating the transcription of key oncogenes such as MYC and MCL1. Enitociclib has anti-proliferative activity targeting MYC+ lymphoma and multiple myeloma (MM) cells, and has synergistic effects with Bortezomib (HY-10227) and Lenalidomide (HY-A0003), and can be used in the research of hematological malignancies.

ddATP (lithium) (2',3'-Dideoxyadenosine 5'-triphosphate (lithium)) is an active metabolite of 2',3'-dideoxyinosine and a DNA polymerase chain elongation inhibitor. ddATP (lithium) is used in Sanger DNA sequencing and in research related to viral infection^{[1][2][3][4][5]}.

Topoisomerase I-IN-22 is an inhibitor of MRSA DNA Topoisomerase I with an IC₅₀ of 0.85 μg/mL. Topoisomerase I-IN-22 can specifically disrupt the cell membrane structure of MRSA, enter the interior of bacteria and inhibit the activity of DNA Topoisomerase I, thereby interfering with the processes of DNA replication and transcription. Topoisomerase I-IN-22 can be used for the research of MRSA infection.

Naphthol AS-BS (Compound 1) is a human cytomegalovirus (HCMV) DNA polymerase alpha inhibitor with an IC₅₀ of 12 μM. Naphthol AS-BS can be used for the research of infection.

Silver sulfadiazine (Standard) is the analytical standard of Silver sulfadiazine. This product is intended for research and analytical applications. Silver sulfadiazine (AgSD), a sulfonamide antibiotic, effects a dual inhibitory action on bacterial growth by its sulfa moiety (SD-SDZ) that prevents bacterial folate absorption and subsequent DNA synthesis. The silver that is released from Silver sulfadiazine binds and disrupts the DNA structure, precluding bacterial DNA replication.

8-Aminoguanosine is a purine nucleoside phosphorylase inhibitor. 8-Aminoguanosine blocks purine nucleoside phosphorylation via specific binding.

CeMMEC1 (Standard) is the analytical standard of CeMMEC1 (HY-111445). This product is intended for research and analytical applications. CeMMEC1 is an inhibitor of BRD4, and also has high affinity for TAF1, with an IC₅₀ of 0.9 μM for TAF1, and a K_d of 1.8 μM for TAF1 (2).

N-Nitrosomorpholine (Standard) is the analytical standard of N-Nitrosomorpholine. This product is intended for research and analytical applications. N-Nitrosomorpholine is a nitrosamine that is sensitive to light. N-nitrosomorpholine is a strong animal carcinogen.

Guanosine triphosphate (GTP) tritris solution (100 mM) is a critical nucleotide and regulator of cellular metabolism. Guanosine triphosphate tritris solution (100 mM) promotes ribosomal DNA localization, pre-rRNA transcription and ribosome biogenesis by binding to RNA polymerase I and GPN proteins (GPN1/3). Guanosine triphosphate tritris solution (100 mM) links MYC-dependent ribosome biogenesis to nucleotide sufficiency, acts as a metabolic gatekeeper supporting protein synthesis, DNA/RNA synthesis and cellular signal transduction, while also participating in the physiological activities of pancreatic β-cells and serving as an oxidative substrate for reactive oxygen species. In small cell lung cancer with high MYC expression, Guanosine triphosphate tritris solution (100 mM) accumulates through the IMPDH-driven synthetic pathway, thereby affecting apoptosis and mitotic processes. Guanosine triphosphate tritris solution (100 mM) is used in the research of small cell lung cancer, hepatoblastoma and cellular metabolism.

Daunorubicin-¹³C,d₃ is ¹³C and deuterium labeled Daunorubicin. Daunorubicin (Daunomycin) is a topoisomerase II inhibitor with potent anti-tumor activity. Daunorubicin inhibits DNA and RNA synthesis. Daunorubicin is a cytotoxin that inhibits cancer cell viability and induces apoptosis and necrosis. Daunorubicin is also an anthracycline antibiotic. Daunorubicin can be used in the research of infection and variety of cancers, including leukemia, non-Hodgkin lymphomas, Ewing's sarcoma, Wilms' tumor.

Foscarnet (sodium) (Standard) is the analytical standard of Foscarnet (sodium). This product is intended for research and analytical applications. Foscarnet sodium (Trisodium phosphonoformate) is a viral DNA polymerase activity inhibitor, leading to reversible suppression of viral replication. Foscarnet sodium is an antiherpesvirus agent used in cytomegalovirus retinitis.

Lincomycin (U-10149) (Standard) is the analytical reference standard of Lincomycin (HY-117660). This product is used for research and analytical applications. Lincomycin is an orally active lincosamide antibiotic. Lincomycin binds to the ribosomes of Gram-positive bacteria to inhibit protein synthesis. Lincomycin can inhibit chloroplast translation, disrupt chloroplast integrity, and activate chloroplast-to-nucleus retrograde signaling in Arabidopsis thaliana seedlings. Lincomycin induces alterations in lipid profiles and liver injury, disrupts blood glucose and insulin levels, and increases growth rate in mice.

HCV-IN-50 (Compound 2) is a competitive and selective HCV NS5B RNA-dependent RNA polymerase inhibitor with an IC₅₀ of 0.3  μM for NS5B △C21 enzyme over △C55 enzyme. HCV-IN-50 has an antiviral activity and efficiently blocks replication of HCV subgenomic replicons especially mutant replicons.