1.0 2026-03-31 21:05:04 UTC 2026-08-22 07:11:37 UTC (+)-Antibiotic K 252a SmallMolecule (+)-Antibiotic K 252a is an organoheterocyclic compound with the formula C27H21N3O5 and an average molecular weight of 467.48 g/mol. (+)-Antibiotic K 252a belongs to the carbazoles, a subclass of indoles and derivatives within the organic compounds. This substance is found in or released from one recorded source: healthcare, pharmaceuticals & veterinary products (Antibiotics). Recorded exposure routes for this compound include inhalation and oral intake. (+)-Antibiotic K 252a, (+)-Antibiotic SF 2370, Protein kinase inhibitor K252a, SF 2370 (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 (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 2,3,9S,10R,11,12R-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 6,9-Epoxy-15H-diindolo[1,2,3-fg:3',2',1'-kl]pyrrolo[3,4-i][1,6]benzodiazocine-7-carboxylic acid, 6,7,8,9,16,17-hexahydro-7-hydroxy-6-methyl-15-oxo-, methyl ester, (6S,7R,9R)- 6-carboxylate Antibiotic K 252a Antibiotic SF 2370 IV7H45AM5B K 252a K-252a K-252a, Nocardiopsis sp. K252a KC6500000 KSA Lithium Phenyl(2,4,6-trimethylbenzoyl)phosphinate | Lithium PTMB phosphinate | methyl (15S,16R,18R)-16-hydroxy-15-methyl-3-oxo-28-oxa-4,14,19-triazaoctacyclo[12.11.2.115,18.02,6.07,27.08,13.019,26.020,25]octacosa-1(26),2(6),7(27),8,10,12,20,22,24-nonaene-16-carboxylate Methyl (15S,16R,18R)-16-hydroxy-15-methyl-3-oxo-28-oxa-4,14,19-triazaoctacyclo[12.11.2.1~15,18~.0~2,6~.0~7,27~.0~8,13~.0~19,26~.0~20,25~]octacosa-1,6,8,10,12,20,22,24,26-nonaene-16-carboxylate methyl (5S,6R,8R)-6-hydroxy-5-methyl-13-oxo-5,6,7,8,14,15-hexahydro-13H-5,8-epoxy-4b,8a,14-triazadibenzo[b,h]cycloocta[1,2,3,4-jkl]cyclopenta[e]-as-indacene-6-carboxylate MFCD00161522 MFCD09878276 SF 2370 | UNII-IV7H45AM5B UNII:IV7H45AM5B [99533-80-9] C27H21N3O5 467.481 467.148121 99533-80-9 [H][C@]12C[C@](O)(C(=O)OC)[C@](C)(O1)N1C3=C(C=CC=C3)C3=C1C1=C(C4=C(C=CC=C4)N21)C1=C3CNC1=O InChI=1S/C27H21N3O5/c1-26-27(33,25(32)34-2)11-18(35-26)29-16-9-5-3-7-13(16)20-21-15(12-28-24(21)31)19-14-8-4-6-10-17(14)30(26)23(19)22(20)29/h3-10,18,33H,11-12H2,1-2H3,(H,28,31)/t18-,26+,27+/m1/s1 KOZFSFOOLUUIGY-SOLYNIJKSA-N Detected and Not Quantified logp 2.8 average_mass 467.481 ChemAxon mono_mass 467.148121 ChemAxon smiles [H][C@]12C[C@](O)(C(=O)OC)[C@](C)(O1)N1C3=C(C=CC=C3)C3=C1C1=C(C4=C(C=CC=C4)N21)C1=C3CNC1=O ChemAxon formula C27H21N3O5 ChemAxon inchi InChI=1S/C27H21N3O5/c1-26-27(33,25(32)34-2)11-18(35-26)29-16-9-5-3-7-13(16)20-21-15(12-28-24(21)31)19-14-8-4-6-10-17(14)30(26)23(19)22(20)29/h3-10,18,33H,11-12H2,1-2H3,(H,28,31)/t18-,26+,27+/m1/s1 ChemAxon inchikey KOZFSFOOLUUIGY-SOLYNIJKSA-N ChemAxon #<HealthEffect::ActiveRecord_Associations_CollectionProxy:0x00007f3bb0142808> 3035817 2299962