A 74932

We are open as normal during COVID-19 pandemic. Order online, same day shipping out.

    WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 571195

CAS#: 148201-60-9

Description: A 74932 is an inhibitor of DNA topoisomerases. It is a quinolone antibacterial agentand inhibitor of topoisomerase II enzyme. A-74932 possesses good activity in vivo against both systemic tumour and subcutaneously implanted murine solid tumours as well as human tumour xenografts.

Price and Availability

Size Price Shipping out time Quantity
Inquire bulk and customized quantity

Pricing updated 2020-03-29. Prices are subject to change without notice.

A 74932 is not in stock, may be available through custom synthesis. For cost-effective reason, minimum 1 gram order is requested. The product will be characterized by NMR, HPLC and MS analysis. Purity (HPLC) is usually >98%. CoA, QC data, MSDS will be provided when product is successfully made. The estimated lead time is 2-3 months. Please send email to sales@medkoo.com to inquire quote.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 571195
Name: A 74932
CAS#: 148201-60-9
Chemical Formula: C25H26ClFN4O5
Exact Mass: 516.1576
Molecular Weight: 516.95
Elemental Analysis: C, 58.09; H, 5.07; Cl, 6.86; F, 3.68; N, 10.84; O, 15.47

Synonym: A 74932; A-74932; A74932

IUPAC/Chemical Name: 6-((S)-2-((R)-2-aminopentanamido)pyrrolidin-1-yl)-5-fluoro-3-oxo-3H-pyrido[3,2,1-kl]phenoxazine-2-carboxylic acid hydrochloride


InChi Code: InChI=1S/C25H25FN4O5.ClH/c1-2-6-16(27)24(32)28-19-9-5-10-29(19)21-15(26)11-13-20-23(21)35-18-8-4-3-7-17(18)30(20)12-14(22(13)31)25(33)34;/h3-4,7-8,11-12,16,19H,2,5-6,9-10,27H2,1H3,(H,28,32)(H,33,34);1H/t16-,19+;/m1./s1

SMILES Code: O=C(C1=CN2C3=C(C(N4[C@H](NC([C@H](N)CCC)=O)CCC4)=C(F)C=C3C1=O)OC5=CC=CC=C25)O.[H]Cl

Technical Data

Solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO

Shelf Life:
>2 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code:


1: Chu DT, Hallas R, Clement JJ, Alder J, McDonald E, Plattner JJ. Synthesis and antitumour activities of quinolone antineoplastic agents. Drugs Exp Clin Res. 1992;18(7):275-82. PubMed PMID: 1338309.

2: Snyder RD. Use of catalytic topoisomerase II inhibitors to probe mechanisms of chemical-induced clastogenicity in Chinese hamster V79 cells. Environ Mol Mutagen. 2000;35(1):13-21. PubMed PMID: 10692223.

3: Chu DT, Hallas R, Tanaka SK, Alder J, Balli D, Plattner JJ. Synthesis and antitumour activities of tetracyclic quinolone antineoplastic agents. Drugs Exp Clin Res. 1994;20(5):177-83. PubMed PMID: 7875053.

4: Permana PA, Snapka RM, Shen LL, Chu DT, Clement JJ, Plattner JJ. Quinobenoxazines: a class of novel antitumor quinolones and potent mammalian DNA topoisomerase II catalytic inhibitors. Biochemistry. 1994 Sep 20;33(37):11333-9. PubMed PMID: 7727384.