Chemical Name: 2-[3-[(1RS)-1-Cyanoethyl]-5-(1H-1,2,4-triazol-1-ylmethyl)phenyl]-2-methylpropanenitrile (As per EP) ; 2-(3-(1-Cyanoethyl)-5-(1H-1,2,4-triazol-1-ylmethyl)phenyl)-2-methylpropionitrile (as per USP)
Synonym: Desmethyl Anastrozole (USP)
Chemical Name: 2-[3-[(1RS)-1-Cyanoethyl]-5-(1H-1,2,4-triazol-1-ylmethyl)phenyl]-2-methylpropanenitrile (As per EP) ; 2-(3-(1-Cyanoethyl)-5-(1H-1,2,4-triazol-1-ylmethyl)phenyl)-2-methylpropionitrile (as per USP)
Synonym: Desmethyl Anastrozole (USP)
Anastrozole EP Impurity A is chemically 2-[3-[(1RS)-1-Cyanoethyl]-5-(1H-1,2,4-triazol-1-ylmethyl)phenyl]-2-methylpropanenitrile (As per EP) ; 2-(3-(1-Cyanoethyl)-5-(1H-1,2,4-triazol-1-ylmethyl)phenyl)-2-methylpropionitrile (as per USP). It is also known as Desmethyl Anastrozole (USP). Anastrozole EP Impurity A is supplied with detailed characterization data compliant with regulatory guideline.