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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Losartan, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Losartan impurity reference standards are invaluable for pharmaceutical research, supporting product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They also aid in identifying unknown impurities and assessing genotoxic potential.
Our Losartan-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.

Losartan Related Compounds

Stable Isotopes

Des[2’-(1H-tetrazol-5-yl)] 2-Cyanolosartan Carboxaldehyde-D3
Des[2’-(1H-tetrazol-5-yl)] 2-Cyanolosartan Carboxaldehyde-D3
  • CAT. No.CS-T-96813
  • CAS. No.Not Available
  • Stock Status:Enquire
Des[2’-(1H-tetrazol-5-yl)] 2-Cyanolosartan-D3
Des[2’-(1H-tetrazol-5-yl)] 2-Cyanolosartan-D3
  • CAT. No.CS-T-96814
  • CAS. No.Not Available
  • Stock Status:Enquire
Losartan acid D6 hydrochloride
Losartan acid D6 hydrochloride
  • CAT. No.CS-BU-00055
  • CAS. No.Not Available
  • Stock Status:Enquire
Losartan azide D4
Losartan azide D4
  • CAT. No.CS-O-56722
  • CAS. No.727718-93-6(Unlabelled)
  • Stock Status:Enquire
Losartan azide-d8
Losartan azide-d8
  • CAT. No.CS-O-40065
  • CAS. No.Not Available
  • Stock Status:Enquire
Losartan Carboxaldehyde-d3
Losartan Carboxaldehyde-d3
  • CAT. No.CS-T-101177
  • CAS. No.1184999-26-5
  • Stock Status:Enquire
Losartan Carboxylic acid-d4
Losartan Carboxylic acid-d4
  • CAT. No.CS-O-06731
  • CAS. No.1246820-62-1
  • Stock Status:In Stock
Losartan D3
Losartan D3
  • CAT. No.CS-T-57300
  • CAS. No.1030936-74-3
  • Stock Status:Enquire
Losartan N2-Glucuronide-d4
Losartan N2-Glucuronide-d4
  • CAT. No.CS-T-98439
  • CAS. No.Not Available
  • Stock Status:Enquire
Losartan-d2
Losartan-d2
  • CAT. No.CS-O-02734
  • CAS. No.1030936-22-1
  • Stock Status:In Stock
Losartan-d3 Carboxylic Acid
Losartan-d3 Carboxylic Acid
  • CAT. No.CS-T-57301
  • CAS. No.1189729-40-5
  • Stock Status:Enquire
Losartan-d4
Losartan-d4
  • CAT. No.CS-O-02637
  • CAS. No.1030937-27-9
  • Stock Status:In Stock
Losartan-d9
Losartan-d9
  • CAT. No.CS-B-00297
  • CAS. No.114798-26-4 (unlabeled)
  • Stock Status:Enquire
N-Trityl Losartan-d3 Carboxylic Acid
N-Trityl Losartan-d3 Carboxylic Acid
  • CAT. No.CS-T-101995
  • CAS. No.Not Available
  • Stock Status:Enquire
N-Trityl Losartan-d4 Carboxaldehyde
N-Trityl Losartan-d4 Carboxaldehyde
  • CAT. No.CS-T-102890
  • CAS. No.133910-00-6(Unlabelled)
  • Stock Status:Enquire
Trityl-Losartan D4
Trityl-Losartan D4
  • CAT. No.CS-Y-00101
  • CAS. No.1309283-24-6
  • Stock Status:Enquire

API Standards

Losartan
Losartan
  • CAT. No.CS-O-10833
  • CAS. No.114798-26-4
  • Stock Status:In Stock
Losartan Potassium
Losartan Potassium
  • CAT. No.CS-O-01767
  • CAS. No.124750-99-8
  • Stock Status:In Stock

Metabolites

Losartan Carboxylic Acid
Losartan Carboxylic Acid
  • CAT. No.CS-O-10324
  • CAS. No.124750-92-1
  • Stock Status:In Stock

Impurities

1-Acetyl-6-iodo-1H-indazole
1-Acetyl-6-iodo-1H-indazole
  • CAT. No.CS-O-40131
  • CAS. No.850363-52-9
  • Stock Status:Enquire
2-butyl-5-chloro-1H-imidazole-4-carbaldehyde, potassium salt
2-butyl-5-chloro-1H-imidazole-4-carbaldehyde, potassium salt
  • CAT. No.CS-O-48814
  • CAS. No.1207475-08-8
  • Stock Status:Enquire
4-(4-Bromomethylphenyl)benzonitrile
4-(4-Bromomethylphenyl)benzonitrile
  • CAT. No.CS-O-40092
  • CAS. No.50670-51-4
  • Stock Status:Enquire
5-Iodo-2-methylphenol
5-Iodo-2-methylphenol
  • CAT. No.CS-T-94041
  • CAS. No.183803-06-7
  • Stock Status:Enquire
Des[2-(1H-tetrazol-5-yl)] 2-Cyanolosartan
Des[2-(1H-tetrazol-5-yl)] 2-Cyanolosartan
  • CAT. No.CS-T-16636
  • CAS. No.114772-55-3
  • Stock Status:In Stock
Des[2-(1H-tetrazol-5-yl)] 2-Cyanolosartan Carboxaldehyde
Des[2-(1H-tetrazol-5-yl)] 2-Cyanolosartan Carboxaldehyde
  • CAT. No.CS-T-16638
  • CAS. No.124750-67-0
  • Stock Status:In Stock
Losartan a-Butyl-losartan Aldehyde Adduct
Losartan a-Butyl-losartan Aldehyde Adduct
  • CAT. No.CS-T-57302
  • CAS. No.1159977-48-6
  • Stock Status:Enquire
Losartan Acetyloxy Impurity
Losartan Acetyloxy Impurity
  • CAT. No.CS-O-15333
  • CAS. No.253678-97-6
  • Stock Status:Enquire
Losartan Acetyloxy N1-Trityl Impurity
Losartan Acetyloxy N1-Trityl Impurity
  • CAT. No.CS-O-15336
  • CAS. No.154709-17-8
  • Stock Status:Enquire
Losartan Azide impurity
Losartan Azide impurity
  • CAT. No.CS-O-35717
  • CAS. No.727718-93-6
  • Stock Status:In Stock
Losartan Azide Nitrile
Losartan Azide Nitrile
  • CAT. No.CS-O-56724
  • CAS. No.2755908-48-4
  • Stock Status:Enquire
Losartan Dimer Azide
Losartan Dimer Azide
  • CAT. No.CS-EO-02121
  • CAS. No.2755908-51-9
  • Stock Status:Enquire
Losartan EP Impurity B
Losartan EP Impurity B
  • CAT. No.CS-O-11950
  • CAS. No.160514-13-6
  • Stock Status:Enquire
Losartan EP Impurity C
Losartan EP Impurity C
  • CAT. No.CS-K-00233
  • CAS. No.114799-13-2
  • Stock Status:In Stock
Losartan EP Impurity E
Losartan EP Impurity E
  • CAT. No.CS-O-11951
  • CAS. No.120568-11-8
  • Stock Status:In Stock
Losartan EP Impurity F
Losartan EP Impurity F
  • CAT. No.CS-O-15329
  • CAS. No.1332713-64-0
  • Stock Status:In Stock
Losartan EP Impurity L
Losartan EP Impurity L
  • CAT. No.CS-T-57305
  • CAS. No.230971-71-8
  • Stock Status:In Stock
Losartan EP Impurity M
Losartan EP Impurity M
  • CAT. No.CS-O-15331
  • CAS. No.230971-72-9
  • Stock Status:In Stock
Losartan Hydroxy N1-Trityl Impurity
Losartan Hydroxy N1-Trityl Impurity
  • CAT. No.CS-O-15337
  • CAS. No.154709-18-9
  • Stock Status:Enquire
Losartan Imidazo[1,5-b]isoquinoline Impurity
Losartan Imidazo[1,5-b]isoquinoline Impurity
  • CAT. No.CS-T-57304
  • CAS. No.165276-38-0
  • Stock Status:Enquire
Losartan Impurity 29
Losartan Impurity 29
  • CAT. No.CS-EO-03663
  • CAS. No.1190000-72-6
  • Stock Status:Enquire
Losartan Impurity 7
Losartan Impurity 7
  • CAT. No.CS-T-88429
  • CAS. No.358685-13-9
  • Stock Status:Enquire
Losartan N1-Trityl Impurity
Losartan N1-Trityl Impurity
  • CAT. No.CS-O-15330
  • CAS. No.124751-00-4
  • Stock Status:In Stock
Losartan Potassium EP Impurity A
Losartan Potassium EP Impurity A
  • CAT. No.CS-T-09345
  • CAS. No.79047-41-9
  • Stock Status:Enquire
Losartan Potassium EP Impurity C
Losartan Potassium EP Impurity C
  • CAT. No.CS-T-31272
  • CAS. No.860644-28-6
  • Stock Status:In Stock
Losartan Potassium EP Impurity H
Losartan Potassium EP Impurity H
  • CAT. No.CS-T-62580
  • CAS. No.133909-99-6
  • Stock Status:In Stock
Losartan Potassium EP Impurity J
Losartan Potassium EP Impurity J
  • CAT. No.CS-T-47310
  • CAS. No.1006062-27-6
  • Stock Status:In Stock
Losartan Potassium EP Impurity K
Losartan Potassium EP Impurity K
  • CAT. No.CS-T-31265
  • CAS. No.114798-36-6
  • Stock Status:In Stock
Losartan Related Compound D
Losartan Related Compound D
  • CAT. No.CS-O-36027
  • CAS. No.212316-86-4
  • Stock Status:In Stock
Losartan Related Compound E
Losartan Related Compound E
  • CAT. No.CS-O-36028
  • CAS. No.212316-88-6
  • Stock Status:Enquire
Nitroso Losartan
Nitroso Losartan
  • CAT. No.CS-O-35910
  • CAS. No.Not Available
  • Stock Status:Enquire
N-Trityl Losartan Carboxaldehyde
N-Trityl Losartan Carboxaldehyde
  • CAT. No.CS-T-62581
  • CAS. No.133910-00-6
  • Stock Status:Enquire
N-Trityl Losartan Carboxylic Acid
N-Trityl Losartan Carboxylic Acid
  • CAT. No.CS-T-45965
  • CAS. No.960231-60-1
  • Stock Status:Enquire
N-Trityl Losartan Isomer
N-Trityl Losartan Isomer
  • CAT. No.CS-T-45961
  • CAS. No.150098-04-7
  • Stock Status:Enquire

EP Standards

Losartan for system suitability (Y0001076)
Losartan for system suitability (Y0001076)
  • CAT. No.CS-EG-02921
  • CAS. No.Not Available
  • Stock Status:Enquire
Losartan potassium (Y0001062)
Losartan potassium (Y0001062)
  • CAT. No.CS-EG-02959
  • CAS. No.124750-99-8
  • Stock Status:Enquire

Intermediates

ω-1-Hydroxy Losartan
ω-1-Hydroxy Losartan
  • CAT. No.CS-T-56163
  • CAS. No.141675-57-2
  • Stock Status:Enquire
2-Butyl-4-chloro-5-formylimidazole
2-Butyl-4-chloro-5-formylimidazole
  • CAT. No.CS-O-31530
  • CAS. No.83857-96-9
  • Stock Status:In Stock
4'-methyl-[1,1'-biphenyl]-2-carbonitrile
4'-methyl-[1,1'-biphenyl]-2-carbonitrile
  • CAT. No.CS-T-33298
  • CAS. No.114772-53-1
  • Stock Status:In Stock
5-Deshydroxymethyl-5-chloro Losartan
5-Deshydroxymethyl-5-chloro Losartan
  • CAT. No.CS-T-52157
  • CAS. No.1159977-26-0
  • Stock Status:Enquire
Deshydroxymethyl Losartan Trifluoroacetic Acid Salt
Deshydroxymethyl Losartan Trifluoroacetic Acid Salt
  • CAT. No.CS-T-52158
  • CAS. No.1215727-33-5
  • Stock Status:Enquire
Losartan Trityl Ether
Losartan Trityl Ether
  • CAT. No.CS-T-57303
  • CAS. No.1006062-28-7
  • Stock Status:In Stock
N-1-Ethoxyethyl Losartan Carboxaldehyde
N-1-Ethoxyethyl Losartan Carboxaldehyde
  • CAT. No.CS-T-22366
  • CAS. No.165276-40-4
  • Stock Status:Enquire
N-1-Ethoxyethyl Losartan Carboxylic Acid
N-1-Ethoxyethyl Losartan Carboxylic Acid
  • CAT. No.CS-T-22367
  • CAS. No.165276-41-5
  • Stock Status:Enquire
N-Trityl-deshydroxymethyl Losartan
N-Trityl-deshydroxymethyl Losartan
  • CAT. No.CS-T-88136
  • CAS. No.1797133-13-1
  • Stock Status:Enquire
ω-3-Hydroxy Losartan
ω-3-Hydroxy Losartan
  • CAT. No.CS-T-79242
  • CAS. No.141675-59-4
  • Stock Status:Enquire

Glucuronides

Losartan acyl-beta-D-Glucuronide
Losartan acyl-beta-D-Glucuronide
  • CAT. No.CS-O-05703
  • CAS. No.1799830-02-6
  • Stock Status:In Stock
Losartan N1-beta-D-Glucuronide
Losartan N1-beta-D-Glucuronide
  • CAT. No.CS-O-07894
  • CAS. No.138584-34-6
  • Stock Status:In Stock
Losartan N2-β-D-glucuronide
Losartan N2-β-D-glucuronide
  • CAT. No.CS-O-30518
  • CAS. No.138584-35-7
  • Stock Status:In Stock

Fine Chemicals

Losartan Impurity 12
Losartan Impurity 12
  • CAT. No.CS-O-39650
  • CAS. No.2353190-33-5
  • Stock Status:Enquire