Nitrosamines & NDSRI - Products

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Cleanchem is a trusted provider of premium pharmaceutical reference materials, specializing in Olmesartan and its associated compounds. Our catalog includes pharmacopeial and non-pharmacopeial Olmesartan impurities, metabolites, nitrosamine derivatives (N-NO compounds), and stable isotope-labeled products. These reference standards play a critical role in pharmaceutical R&D, supporting activities such as product formulation, ANDA and DMF submissions, quality assurance, analytical method development, and stability assessments.
All Olmesartan-related substances undergo comprehensive characterization and are delivered with complete Certificates of Analysis and supporting analytical documentation to ensure regulatory adherence. Upon request, we can offer EP/USP traceable standards. Our products are routinely re-evaluated to maintain consistent quality and performance.

N-Nitroso Olmesartan impurity-1

CAT No: CL-OMS-NO-01 CAS No: NA Mol Wt: 587.58 Mol F: C29H29N7O7 Inv Status: Custom Synthesis

Chemical Name: (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl 4-(2-hydroxypropan-2-yl)-1-((2'-(2-nitroso-2H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-2-propyl-1H-imidazole-5-carboxylate

N-Nitroso Olmesartan impurity-2

CAT No: CL-OMS-NO-02 CAS No: NA Mol Wt: 353.3 Mol F: C15H19N3O7 Inv Status: Custom Synthesis

Chemical Name: (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl 4-(2-hydroxypropan-2-yl)-1-nitroso-2-propyl-1H-imidazole-5-carboxylate

N-Nitroso Olmesartan impurity-3

CAT No: CL-OMS-NO-03 CAS No: NA Mol Wt: 227.18 Mol F: C8H9N3O5 Inv Status: Justification

Chemical Name: 1-nitroso-2-propyl-1H-imidazole-4,5-dicarboxylic acid

N-Nitroso Olmesartan impurity-4

CAT No: CL-OMS-NO-04 CAS No: NA Mol Wt: 571.6 Mol F: C28H25N7O7 Inv Status: Custom Synthesis

Chemical Name: (5-Methyl-2-oxo-1,3-dioxol-4-yl)methyl 4-acetyl-1-((2'-(1-nitroso-1H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-2-propyl-1H-imidazole-5-carboxylate

N-Nitroso Olmesartan impurity-5

CAT No: CL-OMS-NO-05 CAS No: NA Mol Wt: 269.3 Mol F: C12H19N3O4 Inv Status: Custom Synthesis

Chemical Name: ?Ethyl 4-(2-hydroxypropan-2-yl)-1-nitroso-2-propyl-1H-imidazole-5-carboxylate

N-Nitroso Olmesartan impurity-6

CAT No: CL-OMS-NO-06 CAS No: NA Mol Wt: 265.3 Mol F: C14H11N5O Inv Status: Custom Synthesis

Chemical Name: 5-(4'-Methyl-[1,1'-biphenyl]-2-yl)-2-nitroso-2H-tetrazole

N-Nitroso Olmesartan impurity-7

CAT No: CL-OMS-NO-07 CAS No: NA Mol Wt: 571.6 Mol F: C28H25N7O7 Inv Status: Custom Synthesis

Chemical Name: ?(5-Methyl-2-oxo-1,3-dioxol-4-yl)methyl 4-acetyl-1-((2'-(1-nitroso-1H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-2-propyl-1H-imidazole-5-carboxylate

N-Nitroso Olmesartan impurity 8

CAT No: CL-OMS-NO-08 CAS No: NA Mol Wt: 569.58 Mol F: C29H27N7O6 Inv Status: Custom Synthesis

Chemical Name: (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl 1-((2'-(1-nitroso-1H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-4-(prop-1-en-2-yl)-2-propyl-1H-imidazole-5-carboxylate

N-Nitroso Olmesartan impurity 9

CAT No: CL-OMS-NO-09 CAS No: NA Mol Wt: 503.56 Mol F: C26H29N7O4 Inv Status: Custom Synthesis

Chemical Name: ethyl 4-(2-hydroxypropan-2-yl)-1-((2'-(2-nitroso-2H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-2-propyl-1H-imidazole-5-carboxylate

N-Nitroso Olmesartan impurity 10

CAT No: CL-OMS-NO-10 CAS No: NA Mol Wt: 283.28 Mol F: C12H17N3O5 Inv Status: Custom Synthesis

Chemical Name: diethyl 1-nitroso-2-propyl-1H-imidazole-4,5-dicarboxylate

N-Nitroso Olmesartan impurity 11

CAT No: CL-OMS-NO-11 CAS No: NA Mol Wt: 934.02 Mol F: C47H49N16O6 Inv Status: Custom Synthesis

Chemical Name: 4-(2-((1-((2'-(2H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-4-(2-hydroxypropan-2-yl)-2-propyl-1H-imidazole-5-carbonyl)oxy)propan-2-yl)-1-((2'-(2-nitroso-2H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-2-propyl-1H-imidazole-5-carboxylic acid

N-Nitroso Olmesartan impurity 12

CAT No: CL-OMS-NO-12 CAS No: NA Mol Wt: 903.02 Mol F: C49H50N12O6 Inv Status: Custom Synthesis

Chemical Name: 1-((2'-(3H-1,2,4-triazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-4-(2-((4-(2-hydroxypropan-2-yl)-1-((2'-(2-nitroso-2H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-2-propyl-1H-imidazole-5-carbonyl)oxy)propan-2-yl)-2-propyl-1H-imidazole-5-carboxylic acid

N-Nitroso Olmesartan impurity 13

CAT No: CL-OMS-NO-13 CAS No: NA Mol Wt: 601.23 Mol F: C30H31N7O7 Inv Status: Custom Synthesis

Chemical Name: (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl 4-(2-methoxypropan-2-yl)-1-((2'-(2-nitroso-2H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-2-propyl-1H-imidazole-5-carboxylate

N-Nitroso Olmesartan impurity 14

CAT No: CL-OMS-NO-14 CAS No: NA Mol Wt: 489.54 Mol F: C25H27N7O4 Inv Status: Custom Synthesis

Chemical Name: methyl 4-(2-hydroxypropan-2-yl)-1-((2'-(2-nitroso-2H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-2-propyl-1H-imidazole-5-carboxylate

N-Nitroso Olmesartan impurity 15

CAT No: CL-OMS-NO-15 CAS No: NA Mol Wt: 489.54 Mol F: C25H27N7O4 Inv Status: Custom Synthesis

Chemical Name: 4-(2-methoxypropan-2-yl)-1-((2'-(2-nitroso-2H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-2-propyl-1H-imidazole-5-carboxylic acid

N-Nitroso Olmesartan impurity 16

CAT No: CL-OMS-NO-16 CAS No: NA Mol Wt: 473.54 Mol F: C25H27N7O3 Inv Status: Custom Synthesis

Chemical Name: 1-(4-(2-hydroxypropan-2-yl)-1-((2'-(2-nitroso-2H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-2-propyl-1H-imidazol-5-yl)ethan-1-one

N-Nitroso Olmesartan impurity 17

CAT No: CL-OMS-NO-17 CAS No: NA Mol Wt: 459.51 Mol F: C24H25N7O3 Inv Status: Custom Synthesis

Chemical Name: 1-((2'-(1-nitroso-1H-tetrazol-5-yl)-1,2-dihydro-[1,1'-biphenyl]-4-yl)methyl)-4-(prop-1-en-2-yl)-2-propyl-1H-imidazole-5-carboxylic acid

N-Nitroso Olmesartan impurity 18

CAT No: CL-OMS-NO-18 CAS No: NA Mol Wt: 485.5 Mol F: C26H27N7O3 Inv Status: Custom Synthesis

Chemical Name: ethyl 1-((2'-(1-nitroso-1H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-4-(prop-1-en-2-yl)-2-propyl-1H-imidazole-5-carboxylate

N-Nitroso Olmesartan impurity 19

CAT No: CL-OMS-NO-19 CAS No: NA Mol Wt: 601.62 Mol F: C30H31N7O7 Inv Status: Custom Synthesis

Chemical Name: (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl 4-(2-hydroxybutan-2-yl)-1-((2'-(2-nitroso-2H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-2-propyl-1H-imidazole-5-carboxylate

N-Nitroso Olmesartan impurity 20

CAT No: CL-OMS-NO-20 CAS No: NA Mol Wt: 311.25 Mol F: C12H13N3O7 Inv Status: Custom Synthesis

Chemical Name: (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl 4-(2-hydroxypropan-2-yl)-1-nitroso-1H-imidazole-5-carboxylate

N-Nitroso Olmesartan impurity 21

CAT No: CL-OMS-NO-21 CAS No: NA Mol Wt: 353.33 Mol F: C15H19N3O7 Inv Status: Custom Synthesis

Chemical Name: (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl 4-(2-hydroxypropan-2-yl)-1-nitroso-2-propyl-1H-imidazole-5-carboxylate

N-Nitroso Olmesartan impurity 22

CAT No: CL-OMS-NO-22 CAS No: NA Mol Wt: 271.32 Mol F: C12H21N3O4 Inv Status: Custom Synthesis

Chemical Name: ethyl 4-(2-hydroxypropan-2-yl)-1-nitroso-2-propyl-2,5-dihydro-1H-imidazole-5-carboxylate

N-Nitroso Olmesartan impurity 23

CAT No: CL-OMS-NO-23 CAS No: NA Mol Wt: 457.49 Mol F: C24H23N7O3 Inv Status: Custom Synthesis

Chemical Name: 1-((2-(1-nitroso-1H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-4-(prop-1-en-2-yl)-2-propyl-1H-imidazole-5-carboxylic acid

N-Nitroso Olmesartan impurity 24

CAT No: CL-OMS-NO-24 CAS No: NA Mol Wt: 571.59 Mol F: C29H29N7O6 Inv Status: Custom Synthesis

Chemical Name: methyl 1-(5-methyl-2-oxo-1,3-dioxol-4-yl)-3-((2'-(1-nitroso-1H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-5-(prop-1-en-2-yl)-2-propyl-2,3-dihydro-1H-imidazole-4-carboxylate

N-Nitroso Olmesartan impurity 25

CAT No: CL-OMS-NO-25 CAS No: NA Mol Wt: 571.59 Mol F: C29H29N7O6 Inv Status: Custom Synthesis

Chemical Name: methyl 1-(5-methyl-2-oxo-1,3-dioxol-4-yl)-3-((2'-(1-nitroso-1H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-5-(prop-1-en-2-yl)-2-propyl-2,3-dihydro-1H-imidazole-4-carboxylate

N-Nitroso Olmesartan impurity 26

CAT No: CL-OMS-NO-26 CAS No: NA Mol Wt: 612.61 Mol F: C29H28N10O6 Inv Status: Custom Synthesis

Chemical Name: (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl 4-(2-azidopropan-2-yl)-1-((2'-(1-nitroso-1H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-2-propyl-1H-imidazole-5-carboxylate

N-Nitroso Olmesartan impurity 27

CAT No: CL-OMS-NO-27 CAS No: NA Mol Wt: 344.17 Mol F: C14H10BrN5O Inv Status: Custom Synthesis

Chemical Name: 5-(4'-(bromomethyl)-[1,1'-biphenyl]-2-yl)-1-nitroso-1H-tetrazole

N-Nitroso Olmesartan impurity 28

CAT No: CL-OMS-NO-28 CAS No: NA Mol Wt: 222.21 Mol F: C8H10N6O2 Inv Status: Custom Synthesis

Chemical Name: 5-azido-2-butyl-1-nitroso-1H-imidazole-4-carbaldehyde

N-Nitroso Olmesartan impurity 29

CAT No: CL-OMS-NO-29 CAS No: NA Mol Wt: 622.04 Mol F: C29H28ClN7O7 Inv Status: Custom Synthesis

Chemical Name: (5-(chloromethyl)-2-oxo-1,3-dioxol-4-yl)methyl 4-(2-hydroxypropan-2-yl)-1-((2'-(1-nitroso-1H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-2-propyl-1H-imidazole-5-carboxylate

N-Nitroso Olmesartan impurity 30

CAT No: CL-OMS-NO-30 CAS No: NA Mol Wt: 615.65 Mol F: C31H33N7O7 Inv Status: Custom Synthesis

Chemical Name: (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl 4-(2-hydroxypentan-2-yl)-1-((2'-(1-nitroso-1H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-2-propyl-1H-imidazole-5-carboxylate

N-Nitroso Olmesartan impurity 31

CAT No: CL-OMS-NO-31 CAS No: NA Mol Wt: 1016.09 Mol F: C53H53N13O9 Inv Status: Custom Synthesis

Chemical Name: 2-(1-((2'-(2H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-5-(((5-methyl-2-oxo-1,3-dioxol-4-yl)methoxy)carbonyl)-2-propyl-1H-imidazol-4-yl)propan-2-yl 4-(2-hydroxypropan-2-yl)-1-((2'-(2-nitroso-2H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-2-propyl-1H-imidazole-5-carboxylate

N-Nitroso Olmesartan impurity 32

CAT No: CL-OMS-NO-32 CAS No: NA Mol Wt: 1032.09 Mol F: C53H53N13O10 Inv Status: Custom Synthesis

Chemical Name: (5-(((1-((2'-(1H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-4-(2-hydroxypropan-2-yl)-2-propyl-1H-imidazole-5-carbonyl)oxy)methyl)-2-oxo-1,3-dioxol-4-yl)methyl 4-(2-hydroxypropan-2-yl)-1-((2'-(1-nitroso-1H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-2-propyl-1H-imidazole-5-carboxylate

N-Nitroso Olmesartan impurity 33

CAT No: CL-OMS-NO-33 CAS No: NA Mol Wt: 603.59 Mol F: C29H29N7O8 Inv Status: Custom Synthesis

Chemical Name: 5-(4'-((4-(2-hydroxypropan-2-yl)-5-(((5-methyl-2-oxo-1,3-dioxol-4-yl)methoxy)carbonyl)-2-propyl-1H-imidazol-1-yl)methyl)-[1,1'-biphenyl]-2-yl)-1-nitroso-1H-tetrazole 3-oxide

N-Nitroso Olmesartan impurity 34

CAT No: CL-OMS-NO-34 CAS No: NA Mol Wt: 1032.09 Mol F: C53H53N13O10 Inv Status: Custom Synthesis

Type:Nitrosamines & NDSRI

Total Products: 34

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