A group of related glycopeptide antibiotics. Bleomycin A2 is the main component of the bleomycin employed clinically. Antineoplastic.Mixture of Bleomycin A2, B2 isolated from Streptomyces verticillus.Bleomycin A2 (HPLC) A2:55-70% Bleomycin B2 (HPLC) B2:22-32%Loss on Drying:≤6%Solubility (20mg/ml in water):Conforms Storage and Stability:Powder may be stored at 4°C. Stable for 6 months after receipt.