SPL Set ID: e76d8d83-3691-451c-a32c-d91448c54d16

Caspofungin acetate for Injection is a sterile, lyophilized product for intravenous (IV) infusion that contains a semisynthetic lipopeptide (echinocandin) compound synthesized from a fermentation product of Glarea lozoyensis. Caspofungin acetate for Injection is an echinocandin antifungal that inhibits the synthesis of β (1,3)- D-glucan, an integral component of the fungal cell wall. Caspofungin acetate is 1-[(4 R ,5 S )-5-[(2-aminoethyl)amino]- N 2 -(10,12-dimethyl-1-oxotetradecyl)-4-hydroxy- L-ornithine]-5-[(3 R )-3-hydroxy-L-ornithine] pneumocandin B 0 diacetate (salt). Each vial of Caspofungin acetate for Injection, 50 mg, contains 50 mg of caspofungin equivalent to 55.5 mg of caspofungin acetate, arginine (100 mg), and hydrochloric acid/sodium hydroxide required for pH adjustment. Each vial of Caspofungin acetate for injection, 70 mg, contains 70 mg of caspofungin equivalent to 77.7 mg of caspofungin acetate, arginine (140 mg), and hydrochloric acid/sodium hydroxide required for pH adjustment. Caspofungin acetate is a hygroscopic, white to off-white powder. It is freely soluble in water and methanol, and slightly soluble in ethanol. The pH of a saturated aqueous solution of caspofungin acetate is approximately 6.6. The structural formula is: C 52 H 88 N 10 O 15 •2C 2 H 4 O 2 M.W. 1213.42 Figure