has role 6-aminopenicillanic acid CHEBI:2172 PMID:26852849 KEGG:C02954 A penicillanic acid compound having a (6R)-amino substituent. The active nucleus common to all penicillins, it may be substituted at the 6-amino position to form the semisynthetic penicillins, resulting in a variety of antibacterial and pharmacologic characteristics. Penicin PMID:20970923 PMID:1701026 Aminopenicillanic acid PMID:12569987 Penin PMID:24631718 6-Aminopenicillanate PMID:1384868 Phenacyl 6-aminopenicillinate Patent:US2941995 Reaxys:15080 PMID:6166603 CHEBI:20705 PMID:14687482 6-Aminopenicillanic acid CHEBI:16705 PMID:26986755 Beilstein:959078 CAS:551-16-6 6-Apa 6-APA (2S,5R,6R)-6-amino-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid PMID:25057428 PMID:24389703 6beta-aminopenicillanic acid PMID:24293403 PDBeChem:X1E Gmelin:1876702 6-Aps chebi_ontology PMID:21614893 6-Aminopenicillamine acid (+)-6-aminopenicillanic acid Wikipedia:6-APA penicillanic acids 6-aminopenicillanate penicillanic acid allergen 6-aminopenicillanic acid zwitterion