SPL Set ID: 2e6f96d0-d928-4775-a7db-3e998fce675b

Clindamycin phosphate foam contains clindamycin (1%) as clindamycin phosphate. Clindamycin phosphate is a water-soluble ester of the semi-synthetic antibiotic produced by a 7(S)-chloro-substitution of the 7(R)-hydroxyl group of the parent antibiotic, lincomycin. The chemical name for clindamycin phosphate is methyl 7-chloro-6,7,8-trideoxy-6-(1-methyl- trans -4-propyl-L-2-pyrrolidinecarboxamido)-1-thio-L- threo -α-D- galacto - octopyranoside 2-(dihydrogen phosphate). The structural formula for clindamycin phosphate is represented below: Molecular Formula: C 18 H 34 CIN 2 O 8 PS Molecular Weight: 504.97 g/mol Clindamycin phosphate foam contains clindamycin (1%) as clindamycin phosphate, USP at a concentration equivalent to 10 mg clindamycin per gram in a thermolabile hydroethanolic foam vehicle consisting of cetyl alcohol, ethanol (58%), polysorbate 60, propylene glycol, purified water, and stearyl alcohol pressurized with a hydrocarbon (propane/butane) propellant. clindamycin phosphate structural formula