Irbesartan Related Compounds & Impurities

Irbesartan is an angiotensin II AT1 receptor blocker used for hypertension and diabetic nephropathy renal protection.

Simson Pharma Limited along with its subsidiary offices Simson Pharma Global Ltd. (UK) and Simson Pharma Global LLC (USA) is a trusted manufacturer and supplier of high-quality pharmaceutical reference standards, offering a comprehensive portfolio of Irbesartan reference standards, pharmacopeial and non-pharmacopeial Irbesartan impurities, related compounds, related substances, metabolites, stable isotope-labelled compounds, deuterium labelled compounds and nitrosamine (N-NO) reference standards.

These materials support pharmaceutical research and development, product development, ANDA and DMF submissions, quality control (QC), analytical method development and validation, stability studies, impurity identification, and genotoxic impurity assessment.

Our Irbesartan-related reference standards are thoroughly characterized using advanced analytical techniques and are supplied with comprehensive Certificates of Analysis (COA) and supporting analytical data from our USFDA certified, ISO 17025 and ISO 17034 accredited Lab, to meet global regulatory expectations. EP and USP traceable reference standards can also be provided upon request, subject to availability. Simson is also a provider of EP and USP traceable standards. To ensure consistent quality and reliability, our reference standards are periodically re-tested according to established quality management procedures.

Pharmaceutical Reference Standards / Impurity Standards

Irbesartan
Irbesartan
  • CAT. No.I030000
  • CAS. No.138402-11-6
  • Mol. F.C25H28N6O
  • Mol. W.428.53 g/mol
  • Stock Status:Instock
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Irbesartan
Irbesartan
  • CAT. No.I030000A
  • CAS. No.138402-11-6
  • Mol. F.CHNO
  • Mol. W.428.53 g / mol
  • Stock Status:Under Synthesis
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Irbesartan EP Impurity A
Irbesartan EP Impurity A
  • CAT. No.I030001
  • CAS. No.748812-53-5
  • Mol. F.C25H30N6O2
  • Mol. W.446.54 g/mol
  • Stock Status:Limited Stock
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2-Butyl-1,3-diazaspiro[4.4]non-1-ene-4-one hydrochloride
2-Butyl-1,3-diazaspiro[4.4]non-1-ene-4-one hydrochloride
  • CAT. No.I030002
  • CAS. No.151257-01-1
  • Mol. F.C11H19ClN2O
  • Mol. W.230.73 g/mol
  • Stock Status:Instock
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Monobutyltin
Monobutyltin
  • CAT. No.I030003
  • CAS. No.2406-65-7
  • Mol. F.C4H12Sn
  • Mol. W.178.85 g/mol
  • Stock Status:Custom Synthesis
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Tetrabutylstannane
Tetrabutylstannane
  • CAT. No.I030003A
  • CAS. No.1461-25-2
  • Mol. F.C16H36Sn
  • Mol. W.347.17 g/mol
  • Stock Status:Custom Synthesis
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Irbesartan N1 Trityl Impurity
Irbesartan N1 Trityl Impurity
  • CAT. No.I030004
  • CAS. No.138402-10-5
  • Mol. F.C44H42N6O
  • Mol. W.670.84 g/mol
  • Stock Status:Instock
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Irbesartan Impurity B
Irbesartan Impurity B
  • CAT. No.I030005
  • CAS. No.138401-24-8
  • Mol. F.C25H27N3O
  • Mol. W.385.90 g / mol
  • Stock Status:Instock
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Irbesartan Impurity C
Irbesartan Impurity C
  • CAT. No.I030006
  • CAS. No.154709-19-0
  • Mol. F.C14H11NO
  • Mol. W.209.24 g/ mol
  • Stock Status:Instock
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Irbesartan Impurity D
Irbesartan Impurity D
  • CAT. No.I030007
  • CAS. No.160514-13-6
  • Mol. F.C14H12N4O
  • Mol. W.252.27 g/mol
  • Stock Status:Instock
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Irbesartan Propyl Analogue
Irbesartan Propyl Analogue
  • CAT. No.I030011
  • CAS. No.158778-58-6
  • Mol. F.C24H26N6O
  • Mol. W.414.50 g/mol
  • Stock Status:Instock
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Irbesartan Dimethyl Impurity
Irbesartan Dimethyl Impurity
  • CAT. No.I030013
  • CAS. No.141745-36-0
  • Mol. F.C23H26N6O
  • Mol. W.402.5 g/mol
  • Stock Status:Limited Stock
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Irbesartan Propyl Analogue
Irbesartan Propyl Analogue
  • CAT. No.I030014
  • CAS. No.158778-58-6
  • Mol. F.C24H26N6O
  • Mol. W.414.50 g/mol
  • Stock Status:Custom Synthesis
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Irbesartan EP impurity A
Irbesartan EP impurity A
  • CAT. No.I030016
  • CAS. No.748812-53-5
  • Mol. F.C25H30N6O2
  • Mol. W.446.54 g/mol
  • Stock Status:Instock
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Irbesartan Lactam Impurity
Irbesartan Lactam Impurity
  • CAT. No.I030017
  • CAS. No.151257-01-1
  • Mol. F.C11H19ClN2O
  • Mol. W.230.73 g/mol
  • Stock Status:Custom Synthesis
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4-(2-butyl-4-oxo-1,3-diazaspiro(4,4)non-1-en-3-yl)methylbiphenyl-2-carbonitrile hydrochloride
4-(2-butyl-4-oxo-1,3-diazaspiro(4,4)non-1-en-3-yl)methylbiphenyl-2-carbonitrile hydrochloride
  • CAT. No.I030018
  • CAS. No.NA
  • Mol. F.C25H27N3O.HCl
  • Mol. W.421.96 g/mol
  • Stock Status:Custom Synthesis
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Cycloleucine
Cycloleucine
  • CAT. No.I030019
  • CAS. No.52-52-8
  • Mol. F.C6H11NO2
  • Mol. W.129.16 g/mol
  • Stock Status:Instock
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N-Triphenylmethyl Irbesartan
N-Triphenylmethyl Irbesartan
  • CAT. No.I030020
  • CAS. No.886999-35-5
  • Mol. F.C44H42N6O
  • Mol. W.670.84 g/mol
  • Stock Status:Custom Synthesis
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Irbesartan Dimer Impurity
Irbesartan Dimer Impurity
  • CAT. No.I030021
  • CAS. No.1346598-52-4
  • Mol. F.C39H38N10O
  • Mol. W.662.79 g/mol
  • Stock Status:Custom Synthesis
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Irbesartan Form A
Irbesartan Form A
  • CAT. No.I030022
  • CAS. No.138402-11-6
  • Mol. F.C25H28N6O
  • Mol. W.428.53 g/mol
  • Stock Status:Custom Synthesis
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1-Amino-1-cyanocyclopentane Hydrochloride
1-Amino-1-cyanocyclopentane Hydrochloride
  • CAT. No.I030024
  • CAS. No.16195-83-8
  • Mol. F.C6H11ClN2
  • Mol. W.146.62 g/mol
  • Stock Status:Custom Synthesis
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Irbesartan Bromo IBE Impurity
Irbesartan Bromo IBE Impurity
  • CAT. No.I030025
  • CAS. No.NA
  • Mol. F.C25H26BrN3O
  • Mol. W.464.4 g/mol
  • Stock Status:Custom Synthesis
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Irbesartan Impurity 1
Irbesartan Impurity 1
  • CAT. No.I030026
  • CAS. No.138402-05-8
  • Mol. F.C11H18N2O
  • Mol. W.194.27 g/mol
  • Stock Status:Under Synthesis
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Irbesartan Carboxamide
Irbesartan Carboxamide
  • CAT. No.I030027
  • CAS. No.NA
  • Mol. F.C25H29N3O2
  • Mol. W.403.52 g/mol
  • Stock Status:Custom Synthesis
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Irbesartan Cyano Impurity Hydrochloride
Irbesartan Cyano Impurity Hydrochloride
  • CAT. No.I030028
  • CAS. No.NA
  • Mol. F.C25H28ClN3O
  • Mol. W.421.96 g/mol
  • Stock Status:Custom Synthesis
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Irbesartan Form B
Irbesartan Form B
  • CAT. No.I030029
  • CAS. No.138402-11-6
  • Mol. F.C25H28N6O
  • Mol. W.428.53 g/mol
  • Stock Status:Custom Synthesis
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Irbesartan Impurity 12
Irbesartan Impurity 12
  • CAT. No.I030030
  • CAS. No.64113-85-5
  • Mol. F.C14H11N
  • Mol. W.193.25 g/mol
  • Stock Status:Custom Synthesis
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Irbesartan USP Related Compound A
Irbesartan USP Related Compound A
  • CAT. No.I030031
  • CAS. No.748812-53-5
  • Mol. F.C25H30N6O2
  • Mol. W.446.54 g/mol
  • Stock Status:Custom Synthesis
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Demethyl Irbesartan
Demethyl Irbesartan
  • CAT. No.I030032
  • CAS. No.NA
  • Mol. F.C24H26N6O
  • Mol. W.414.50 g/mol
  • Stock Status:Custom Synthesis
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Nitroso Irbesartan
Nitroso Irbesartan
  • CAT. No.I030033
  • CAS. No.2768787-11-5
  • Mol. F.C25H27N7O2
  • Mol. W.457.53 g/mol
  • Stock Status:Under Synthesis
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Nitroso Spiro Irbesartan
Nitroso Spiro Irbesartan
  • CAT. No.I030034
  • CAS. No.NA
  • Mol. F.C11H17N3O2
  • Mol. W.223.27 g/mol
  • Stock Status:Custom Synthesis
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Irbesartan Nitroso Impurity 1
Irbesartan Nitroso Impurity 1
  • CAT. No.I030035
  • CAS. No.NA
  • Mol. F.C25H27N7O2
  • Mol. W.457.53 g/mol
  • Stock Status:Custom Synthesis
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Irbesartan Impurity 5
Irbesartan Impurity 5
  • CAT. No.I030036
  • CAS. No.148236-54-8
  • Mol. F.C10H16N2O
  • Mol. W.180.30 g/mol
  • Stock Status:Instock
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Irbesartan Impurity 8
Irbesartan Impurity 8
  • CAT. No.I030037
  • CAS. No.133690-91-2
  • Mol. F.C14H10N4
  • Mol. W.234.26 g/mol
  • Stock Status:Instock
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Irbesartan Impurity 20
Irbesartan Impurity 20
  • CAT. No.I030038
  • CAS. No.143618-44-4
  • Mol. F.C33H25N7
  • Mol. W.519.61 g/mol
  • Stock Status:Custom Synthesis
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Irbesartan Form B(Crystalline form)
Irbesartan Form B(Crystalline form)
  • CAT. No.I030039
  • CAS. No.NA
  • Mol. F.C25H28N6O
  • Mol. W.428.50 g/mol
  • Stock Status:Custom Synthesis
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Irbesartan Impurity 3
Irbesartan Impurity 3
  • CAT. No.I030041
  • CAS. No.NA
  • Mol. F.C14H11N3O
  • Mol. W.237.26 g/mol
  • Stock Status:Custom Synthesis
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(R)-methyl2-(((2`-cyano-[1,1`-biphenyl]-4-yl)methyl)(nitroso)amino)-3-methylbutanoate oxalate
(R)-methyl2-(((2`-cyano-[1,1`-biphenyl]-4-yl)methyl)(nitroso)amino)-3-methylbutanoate oxalate
  • CAT. No.I030043
  • CAS. No.NA
  • Mol. F.C22H23N3O7
  • Mol. W.441.43 g/mol
  • Stock Status:Custom Synthesis
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5-[4'-(Bromomethyl)[1,1'-biphenyl]-2-yl]-2H-tetrazole
5-[4'-(Bromomethyl)[1,1'-biphenyl]-2-yl]-2H-tetrazole
  • CAT. No.I030044
  • CAS. No.138402-33-2
  • Mol. F.C14H11BrN4
  • Mol. W.315.17 g/mol
  • Stock Status:Custom Synthesis
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5-(4'-(Dibromomethyl)-[1,1'-biphenyl]-2-yl)-1H-tetrazole
5-(4'-(Dibromomethyl)-[1,1'-biphenyl]-2-yl)-1H-tetrazole
  • CAT. No.I030045
  • CAS. No.1127249-17-5
  • Mol. F.C14H10Br2N4
  • Mol. W.394.07 g/mol
  • Stock Status:Custom Synthesis
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4~-(hydroxymethyl)-[1,1~-biphenyl]-2-carboxylic acid
4~-(hydroxymethyl)-[1,1~-biphenyl]-2-carboxylic acid
  • CAT. No.I030046
  • CAS. No.158144-54-8
  • Mol. F.NA
  • Mol. W.228.24 g/mol
  • Stock Status:Custom Synthesis
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Irbesartan Impurity 18
Irbesartan Impurity 18
  • CAT. No.I030048
  • CAS. No.2045222-12-4
  • Mol. F.C25H28N6O
  • Mol. W.428.53 g/mol
  • Stock Status:Custom Synthesis
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(R)-methyl-2-(((2`-cyano-[1,1`-biphenyl]-4-yl)methyl)(nitroso)amino)-3-methylbutanoate
(R)-methyl-2-(((2`-cyano-[1,1`-biphenyl]-4-yl)methyl)(nitroso)amino)-3-methylbutanoate
  • CAT. No.I030049
  • CAS. No.NA
  • Mol. F.C20H21N3O3
  • Mol. W.351.40 g/mol
  • Stock Status:Custom Synthesis
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Irbesartan Impurity 7
Irbesartan Impurity 7
  • CAT. No.I030050
  • CAS. No.210037-90-4
  • Mol. F.C14H10BrN
  • Mol. W.272.14 g/mol
  • Stock Status:Custom Synthesis
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Valsartan Impurity 30
Valsartan Impurity 30
  • CAT. No.I030051
  • CAS. No.50670-51-4
  • Mol. F.C14H10BrN
  • Mol. W.272.14 g/mol
  • Stock Status:Custom Synthesis
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Irbesartan Impurity 19
Irbesartan Impurity 19
  • CAT. No.I030053
  • CAS. No.1284227-57-1
  • Mol. F.C14H10BrN
  • Mol. W.272.14 g/mol
  • Stock Status:Custom Synthesis
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Irbesartan Impurity 23
Irbesartan Impurity 23
  • CAT. No.I030054
  • CAS. No.NA
  • Mol. F.C25H27N3O
  • Mol. W.385.50 g/mol
  • Stock Status:Custom Synthesis
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Irbesartan Impurity 4
Irbesartan Impurity 4
  • CAT. No.I030055
  • CAS. No.15026-80-9
  • Mol. F.C11H19NO3
  • Mol. W.332.16 g/mol
  • Stock Status:Custom Synthesis
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Irbesartan Impurity 6
Irbesartan Impurity 6
  • CAT. No.I030056
  • CAS. No.NA
  • Mol. F.C39H36N4O
  • Mol. W.576.73 g/mol
  • Stock Status:Custom Synthesis
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Irbesartan Impurity 2
Irbesartan Impurity 2
  • CAT. No.I030057
  • CAS. No.NA
  • Mol. F.C27H30N4O2
  • Mol. W.442.55 g/mol
  • Stock Status:Custom Synthesis
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Metabolites

Irbesartan N-beta-D-Glucuronide
Irbesartan N-beta-D-Glucuronide
  • CAT. No.I030023
  • CAS. No.160205-58-3
  • Mol. F.C31H36N6O7
  • Mol. W.604.65 g/mol
  • Stock Status:Custom Synthesis
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Isotope Labelled Compounds

Irbesartan-d3
Irbesartan-d3
  • CAT. No.I030008
  • CAS. No.1185120-76-6
  • Mol. F.C25H25D3N6O
  • Mol. W.431.56 g/mol
  • Stock Status:Custom Synthesis
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Irbesartan-d7
Irbesartan-d7
  • CAT. No.I030009
  • CAS. No.1329496-43-6
  • Mol. F.C27H22D7F3N6O3
  • Mol. W.549.6 g/mol
  • Stock Status:Custom Synthesis
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Irbesartan D4
Irbesartan D4
  • CAT. No.I030012
  • CAS. No.1216883-23-6
  • Mol. F.C25H24D4N6O
  • Mol. W.432.55 g/mol
  • Stock Status:Instock
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Irbesartan Impurity 15-D4 Sodium Salt
Irbesartan Impurity 15-D4 Sodium Salt
  • CAT. No.I030040
  • CAS. No.1145664-35-2(un-labelled)
  • Mol. F.C14H6D4N7Na
  • Mol. W.303.29 g/mol
  • Stock Status:Custom Synthesis
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5-[4`-(Azidomethyl)[1,1`-biphenyl]-2-yl]-2H-tetrazole-D4
5-[4`-(Azidomethyl)[1,1`-biphenyl]-2-yl]-2H-tetrazole-D4
  • CAT. No.I030042
  • CAS. No.152708-24-2(un-labelled)
  • Mol. F.C14H7D4N7
  • Mol. W.281.31 g/mol
  • Stock Status:Custom Synthesis
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Irbesartan Impurity 14-D4
Irbesartan Impurity 14-D4
  • CAT. No.I030047
  • CAS. No.NA
  • Mol. F.C14H6D4N4
  • Mol. W.238.29 g/mol
  • Stock Status:Custom Synthesis
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Irbesartan-13C-D4
Irbesartan-13C-D4
  • CAT. No.I030052
  • CAS. No.138402-11-6 (unlabeled)
  • Mol. F.C2413CH24D4N6O
  • Mol. W.433.55 g/mol
  • Stock Status:Custom Synthesis
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