RDN67: Risedronate Tetramethyl Impurity

P,P'-[1-Hydroxy-2-(3-pyridinyl)ethylidene]bis-phosphonic acid P,P,P',P'-Tetramethyl ester ;

CAS # 919355-29-6 ;

C11H19NO7P2 ;
Mol. Wt.: 339.22 ;