The chemical Gramicidin has a designated molecular formula of C99H140N20O17 and a molecular weight of 1882.332 g/mol. Synonyms may include: EINECS 215-790-4, Gramicidina [INN-Spanish], Gramicidine [INN-French], Gramicidinum [INN-Latin], Gramicidina, Gramicidine, Gramicidinum, UNII-5IE62321P4 (ChemID). Gramicidin has been assigned a MeSH pharmacological action of: Antibacterial.