The chemical Josamycin has a known molecular formula of C42-H69-N-O15. Synonyms may include: Antibiotic yl-704 A3, EINECS 240-871-6, Josamicina [INN-Spanish], Josamycine [INN-French], Josamycinum [INN-Latin], Kitasamycin A3, Leucomycin A3, Turimycin A5, Yl-704 A3, CCRIS 8511, Josamicina, Josamycine (ChemID). Josamycin has been assigned a MeSH pharmacological action of: Antibacterial.