OXL04A: Oxacillin EP Impurity D

Penilloic Acids of Oxacillin ;

(2RS,4S)-5,5-Dimethyl-2-[[[(5-methyl-3-phenylisoxazol-4-yl)carbonyl]amino]methyl]thiazolidine-4-carboxylic acid ; 

CAS # 1642559-63-4 ; 

C18H21N3O4S ;
Mol. Wt.: 375.44 ;