The chemical Penicillic acid has a designated molecular formula of C8H10O4 and a molecular weight of 170.164 g/mol. Synonyms may include: 3-03-00-01467 (Beilstein Handbook Reference), BRN 1773464, CCRIS 4941, EINECS 202-008-1, 2,5-Hexadienoic acid, 3-methoxy-5-methyl-4-oxo-, HSDB 3523, gamma-Keto-beta-methoxy-delta-methylene-delta(sup alpha)-hexenoic acid, Kyselina penicilova [Czech], 3-Methoxy-5-methyl-4-oxo-2,5-hexadienoic acid (ChemID). Penicillic acid has been assigned a MeSH pharmacological action of: Antibacterial.