erythromycin antibiotic drug macrolide class, chemical structure skeletal formula.

erythromycin antibiotic drug macrolide class chemical structure skeletal formula erythromycine resistance resistant antibacterial antimicrobial infection bacterium bacteria microbe microorganism mycoplasma legionella ees ethylsuccinate streptomyces ribosome carbon hydrogen oxygen nitrogen molecule atoms atomic molecular compound composition chemistry line drawing flat icon vector