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Letrozole
Catalog No:      Product Name: Letrozole
CAS No:112809-51-5||Chemical Formula:C17H11N5||4,4′-(1H-1,2,4-Triazol-1-ylmethylene)dibenzonitrile
Letrozole EP impurity A
Catalog No:      Product Name: Letrozole EP impurity A
CAS No:112809-52-6||Chemical Formula:C17H11N5||4,4′-(4H-1,2,4-triazol-4-ylmethylene)dibenzonitrile
Letrozole EP impurity B
Catalog No:      Product Name: Letrozole EP impurity B
CAS No:113402-31-6||Chemical Formula:C22H13N3||4,4′,4″-methanetriyltribenzonitrile

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