SynonymsAntibiotic 899; Staphylomycin S Close Antibiotic 899; Staphylomycin S Related products Virginiamycin M1 M.F. M.W. 525.61 CAT# AR-V01512 CAS# 21411-53-0 Virginiamycin S1 M.F. M.W. 823.91 CAT# AR-V01513 CAS# 23152-29-6 Virginiamycin M.F. M.W. 823.91 525.61 CAT# AR-V01514 CAS# 11006-76-1