Daptomycin 50MG. Daptomycin, CAS number: 103060-53-3, Molecular Formula: C72H101N17O26, Molecular Weight: 1620. 67, Purity: greater than or equal to 95%, Appearance: Off-white solid, Synonym: N-Decanoyl-L-tryptophyl-L-asparaginyl-L-aspartyl-L-threonylglycyl-L-ornithyl-L-aspartyl, Size: 50MG