Clindamycin EP Impurity C (7-Epi Clindamycin) CAS No:16684-06-3||Chemical Formula:C18H33ClN2O5S||Molecular Weight:424.98100 ||Exact Mass:424.17987||Methyl 7-Chloro-6,7,8-trideoxy-6-[[[(2S,4R)-1-methyl-4-propyl-2-pyrrolidinyl]carbonyl]amino]-1-thio-D-erythro-α-D-galacto-octopyranoside