K-252a

Also known as: Antibiotic K 252a, Antibiotic SF 2370, SF-2370, K 252a, K252a, (9S,10R,12R)-2,3,9,10,11,12-Hexahydro-10-hydroxy-9-methyl-1-oxo-9,12-epoxy-1H-diindolo[1,2,3-fg:3',2',1'-kl]pyrrolo[3,4-i][1,6]benzodiazocine-10-carboxylic acid methyl ester, Methyl (5S,6R,8R)-6-hydroxy-5-methyl-13-oxo-5,6,7,8,14,15-hexahydro-13H-16-oxa-4b,8a,14-triaza-5,8-methanodibenzo[b,h]cycloocta[jkl]cyclopenta[e]-as-indacene-6-carboxylate, Protein kinase inhibitor K-252a, Nocardiopsis sp. K-252a

K-252a (CAS 99533-80-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C27H21N3O5 and a molecular weight of 467.473 g/mol. It is also known as Antibiotic K 252a, Antibiotic SF 2370 and SF-2370. Key properties include a boiling point of 685.3±55.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 368.2±31.5 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

99533-80-9

Jingsj CID

J-1977876-5

Molecular Formula

C₂₇H₂₁N₃O₅

Molecular Weight

467.473 g/mol

Category

Organic Compounds

Last updated

8/21/2026