Irbesartan Hydroxy Impurity ;Candesartan Hydroxy Impurity ;Losartan Hydroxy Impurity ;Losartan EP Impurity B

Irbesartan Hydroxy Impurity ;Candesartan Hydroxy Impurity ;Losartan Hydroxy Impurity ;Losartan EP Impurity B

[2'-(1H-tetrazol-5-yl)biphenyl-4-yl]methanol

Impurity reference standard used for related substances testing of Irbesartan drug substance and drug product per pharmacopoeial limits.