penicillin penicillin O (2S,5R,6R)-3,3-dimethyl-7-oxo-6-{[(prop-2-en-1-ylsulfanyl)acetyl]amino}-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid (2S,5R,6R)-6-{[(allylsulfanyl)acetyl]amino}-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 330.071 330.42510 6beta-[(prop-2-en-1-ylsulfanyl)acetamido]-2,2-dimethylpenam-3alpha-carboxylic acid A penicillin where the side-chain N-acyl group is specified as allylmercaptoacetyl. Antibiotic isolated from Penicillium chrysogenum. Beilstein:44307 C13H18N2O4S2 CAS:87-09-2 CHEBI:51207 Drug_Central:3422 InChI=1S/C13H18N2O4S2/c1-4-5-20-6-7(16)14-8-10(17)15-9(12(18)19)13(2,3)21-11(8)15/h4,8-9,11H,1,5-6H2,2-3H3,(H,14,16)(H,18,19)/t8-,9+,11-/m1/s1 KEGG:C17405 PMID:13761469 Patent:US2528175 Patent:US2623876 QULKGELYPOJSLP-WCABBAIRSA-N Reaxys:44307 [H][C@]12SC(C)(C)[C@@H](N1C(=O)[C@H]2NC(=O)CSCC=C)C(O)=O allylmercaptomethylpenicillin allylmercaptomethylpenicillinic acid allylthiomethylpenicillin almecilina almecillin almecilline almecillinum chebi_ontology penicillin AT