Methyl blue is a triaminotriphenylmethane dye. It is used as an antiseptic dye in the polychrome staining method and has applications in histological and microbiological staining solutions.

6-Hydroxyrubiadin has antioxidant activity, EC(50) is 14.7ug/ml.

Penicillin V potassium is a broad-spectrum penicillin antibiotic used orally in the treatment of mild to moderate infections by susceptible gram-positive organisms.