IST01: Irbesartan

2-Butyl-3-[p-(o-1H-tetrazol-5-ylphenyl)benzyl]-1,3-diazaspiro[4.4]non-1-en-4-one
("BMS-186295"; "SR-47436")
[138402-11-6]

IST01D3: Irbesartan-d3

IST02: Irbesartan USP Related Compound A

1-pentanoylamino-cyclopentanecarboxylic acid [2'-(1H-tetrazol-5-yl)-biphenyl-4-ylmethyl]-amide ;
Irbesartan Metabolite "SR-49498"
[CAS # 748812-53-5]

IST03: Irbesartan N1-Trityl Impurity

2-Butyl-3-[[4-[2-(2-trityl-tetrazol-5-yl)phenyl]phenyl]methyl]-1,3-diazaspiro[4.4]non-1-en-4-one
[CAS # 138402-10-5]

IST04: Irbesartan Lactam Impurity

2-Butyl-4-spirocyclopentane-2-imidazolin-5-one hydrochloride
[CAS # 151257-01-1]

IST05: Irbesartan Bromo Impurity

5-(4'-(Bromomethyl)(1,1'-biphenyl)-2-yl)-1-trityl-1H-tetrazole
[CAS # 124750-51-2]