(6R,23S,25S)-5-O-Demethyl-28-deoxy-25-(1,3-dimethyl-1-butenyl)-6,28-epoxy-23-hydroxymilbemycin B is a chemical compound registered under CAS number 104012-75-1. It is also known as Antibiotic S-541A; S-541A. NewsChem supplies (6R,23S,25S)-5-O-Demethyl-28-deoxy-25-(1,3-dimethyl-1-butenyl)-6,28-epoxy-23-hydroxymilbemycin B for laboratory research and bulk production; product code 1368027. Send an inquiry for purity, packaging, price and lead time.