Penicillin G potassium
beta-lactam antibiotic
Streptomycin sulfate ≥720IU/mg
non-animal origin
Chloramphenicol *copeia
Bacteriostatic antibiotic; synthetic
Mitomycin C
Cytotoxic antibiotic against Gram-positive bacteria
Actinopyrone A
Actinotetraose hexatiglate