SPL Set ID: 95909792-972b-4c0c-b2ce-2be4bed36cff

Daptomycin for injection contains daptomycin, a cyclic lipopeptide antibacterial agent derived from the fermentation of Streptomyces roseosporus . Daptomycin is available as light yellow to yellow powder. The chemical name is N -decanoyl-L-tryptophyl-D-asparaginyl-L-aspartyl-L-threonylglycyl-L-ornithyl-L-aspartyl-D-alanyl-L-aspartylglycyl-D-seryl- threo -3-methyl-L-glutamyl-3-anthraniloyl-L-alanine ε 1 -lactone. The chemical structure is: The empirical formula is C 72 H 101 N 17 O 26 ; the molecular weight is 1620.7. Daptomycin for injection is supplied in a single-dose vial as a sterile, preservative-free, pale yellow to light brown colored lyophilized cake or powder containing 500 mg of daptomycin for intravenous (IV) use following reconstitution [see Dosage and Administration (2.7) ]. Each vial also contains 713 mg sucrose and sodium hydroxide is used to adjust the pH. The pH of the solution upon reconstitution is 6.8. Freshly reconstituted solutions of daptomycin for injection range in color from clear, pale yellow to light brown. Daptomycin Structural Formula