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API Name : Nitrosamines -API'S

Nitrosamines -API'S

Venkatasai is a leading provider of pharmaceutical reference standards, specializing in the supply of high-purity Nitrosamines -API'S reference materials. Our portfolio includes both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope-labeled compounds, and nitrosamine derivatives (N-NO products). These reference standards play a crucial role in pharmaceutical R&D, aiding in formulation development, ANDA/DMF submissions, quality control, method validation, stability studies, and impurity profiling—including the identification and assessment of potentially genotoxic impurities.

Each Nitrosamines -API'S-related product is rigorously characterized and delivered with a detailed Certificate of Analysis (COA) and comprehensive analytical data to ensure regulatory compliance. Upon request, we also offer EP/USP traceable standards. To maintain the highest quality standards, all materials are subject to periodic re-testing and continuous quality monitoring.

Nitroso Phthaloyl Amlodipine

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CAT No: VS-N091001
CAS No: N/A
Mol.F.: C28H26ClN3O8
Mol.Wt.: 568
Status: Custom Synthesis

N-Nitroso Atenolol-d5

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CAT No: VS-N091002
CAS No: N/A
Mol.F.: C14H16D5N3O4
Mol.Wt.: 300.37
Status: Custom Synthesis

Nitroso Arformoterol

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CAT No: VS-N091003
CAS No: N/A
Mol.F.: C19H23N3O6
Mol.Wt.: 389.41
Status: Custom Synthesis

Bupropion Nitroso Impurity

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CAT No: VS-N091005
CAS No: 2763780-10-3
Mol.F.: C13H17ClN2O2
Mol.Wt.: 268.7
Status: Custom Synthesis

Buspirone Nitroso Impurity 1

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CAT No: VS-N091006
CAS No: 872826-80-7
Mol.F.: C8H11N5O
Mol.Wt.: 193.2
Status: Custom Synthesis

Bilastine Nitrosoamine Impurity 1

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CAT No: VS-N091007
CAS No: N/A
Mol.F.: C12H14N4O
Mol.Wt.: 230.27
Status: Custom Synthesis

Mono-Nitroso-Clonidine

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CAT No: VS-N091009
CAS No: 148950-49-6
Mol.F.: C9H8Cl2N4O
Mol.Wt.: 259.1
Status: Custom Synthesis

N-Nitroso Ciprofloxacin

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CAT No: VS-N091010
CAS No: 864443-44-7
Mol.F.: C17H17FN4O4
Mol.Wt.: 360.3
Status: Custom Synthesis

N-Nitroso Dabigatran Etexilate

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CAT No: VS-N091012
CAS No: 2892260-29-4
Mol.F.: C34H40N8O6
Mol.Wt.: 656.7
Status: Custom Synthesis

DABIGATRAN NITROSO IMPURITY 18

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CAT No: VS-N091013
CAS No: N/A
Mol.F.: C18H19N5O6
Mol.Wt.: 401.4
Status: Custom Synthesis

Dabigatran Nitroso Impurity 7

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CAT No: VS-N091014
CAS No: N/A
Mol.F.: C27H25N7O4
Mol.Wt.: 511.5
Status: Custom Synthesis

Dabigatran Nitroso Impurity 3

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CAT No: VS-N091015
CAS No: N/A
Mol.F.: C10H13N3O3
Mol.Wt.: 223.2
Status: Custom Synthesis

N-Nitroso Dorzolamide

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CAT No: VS-N091016
CAS No: N/A
Mol.F.: C10H15N3O5S3
Mol.Wt.: 353.4
Status: Custom Synthesis

N-Nitroso Decyl aminoquat

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CAT No: VS-N091017
CAS No: N/A
Mol.F.: C19H42N3O
Mol.Wt.: 328.6
Status: Custom Synthesis

N-Nitroso Didecylamine

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CAT No: VS-N091018
CAS No: 69112-95-4
Mol.F.: C20H42N2O
Mol.Wt.: 326.6
Status: Custom Synthesis

N-Nitroso Desmopressin

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CAT No: VS-N091019
CAS No: N/A
Mol.F.: C46H63N15O13S2
Mol.Wt.: 1098.2
Status: Custom Synthesis

Dabigatran Nitrosamine Impurity

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CAT No: VS-N091020
CAS No: N/A
Mol.F.: C18H21N5O4
Mol.Wt.: 371.39
Status: Custom Synthesis

Dabigatran Amide Nitroso Impurity

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CAT No: VS-N091021
CAS No: N/A
Mol.F.: C34H39N7O7
Mol.Wt.: 657.73
Status: Custom Synthesis

Duloxetine Nitroso Impurity 2

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CAT No: VS-N091022
CAS No: 2680527-91-5
Mol.F.: C18H18N2O2S
Mol.Wt.: 326.4
Status: Custom Synthesis

N-Nitroso Edoxaban Desmethyl Impurity

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CAT No: VS-N091023
CAS No: N/A
Mol.F.: C23H27ClN8O5S : C7H8O3S
Mol.Wt.: 563.0 : 172.2
Status: Custom Synthesis

Etomidate intermediate Nitroso impurity

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CAT No: VS-N091024
CAS No: 2765007-50-7
Mol.F.: C12H16N2O3
Mol.Wt.: 236.27
Status: Custom Synthesis

N-Nitroso Edoxaban Impurity 5

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CAT No: VS-N091025
CAS No: N/A
Mol.F.: C7H7N3O3S
Mol.Wt.: 213.2
Status: Custom Synthesis

Elagolix Ethyl Ester Nitroso Impurity

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CAT No: VS-N091026
CAS No: N/A
Mol.F.: C34H33F5N4O6
Mol.Wt.: 688.7
Status: Custom Synthesis

Elagolix Nitroso Impurity

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CAT No: VS-N091027
CAS No: N/A
Mol.F.: C32H29F5N4O6
Mol.Wt.: 660.6
Status: Custom Synthesis

N-Nitroso Enalapril

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CAT No: VS-N091030
CAS No: N/A
Mol.F.: C20H27N3O6
Mol.Wt.: 405.5
Status: Custom Synthesis

Dinitroso Ethambutol

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CAT No: VS-N091031
CAS No: 52322-22-2
Mol.F.: C10H22N4O4
Mol.Wt.: 262.3
Status: Custom Synthesis

Finerenone Nitroso Impurity

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CAT No: VS-N091033
CAS No: N/A
Mol.F.: C21H21N5O4
Mol.Wt.:  407.4
Status: Custom Synthesis

Nitrosoguanidine

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CAT No: VS-N091034
CAS No: 674-81-7
Mol.F.: CH4N4O
Mol.Wt.: 88.1
Status: Custom Synthesis

N-Nitroso Hydrochlorothiazide

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CAT No: VS-N091035
CAS No: 63779-86-2
Mol.F.: C7H7ClN4O5S2
Mol.Wt.: 326.7
Status: Custom Synthesis

N-NITROSO HYDROXYZINE IMPURITY

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CAT No: VS-N091036
CAS No: 2005-04-1
Mol.F.: C17H18ClN3O
Mol.Wt.: 315.8
Status: Custom Synthesis

Lapatinib Nitroso Impurity 1

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CAT No: VS-N091038
CAS No: N/A
Mol.F.: C29H25ClFN5O5S
Mol.Wt.: 610.1
Status: Custom Synthesis

Lenalidomide Nitroso Impurity

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CAT No: VS-N091042
CAS No: N/A
Mol.F.: C13H11N3O4
Mol.Wt.: 273.2
Status: Custom Synthesis

Nifedipine Nitroso Impurity

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CAT No: VS-N091055
CAS No: NA
Mol.F.: C17H17N3O7
Mol.Wt.: 375.3
Status: Custom Synthesis

Nicardipine Nitroso Impurity

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CAT No: VS-N091056
CAS No: NA
Mol.F.: C26H28N4O7
Mol.Wt.: 508.5
Status: Custom Synthesis

Mononitroso Rilpivirine - I

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CAT No: VS-N091075
CAS No: NA
Mol.F.: C22H17N7O
Mol.Wt.: 395.4
Status: Custom Synthesis

Mononitroso Rilpivirine - II

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CAT No: VS-N091076
CAS No: NA
Mol.F.: C22H17N7O
Mol.Wt.: 395.4
Status: Custom Synthesis

N -Nitroso valsartan Impurity 1

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CAT No: VS-N091094
CAS No: 2254485-68-0
Mol.F.: C19H20N6O3
Mol.Wt.: 380.4
Status: Custom Synthesis

Formoterol intermediate nitroso impurity

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CAT No: VS-N091101
CAS No: N/A
Mol.F.: C17H20N2O2
Mol.Wt.: 284.36
Status: Custom Synthesis

N-Nitroso Duloxetine EP Impurity B

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CAT No: VS-N091103
CAS No: 2418708-78-6
Mol.F.: C8H12N2O2S
Mol.Wt.: 200.3
Status: Custom Synthesis

N-Nitroso Bumetanide

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CAT No: VS-N091109
CAS No: 2490432-02-3
Mol.F.: C17H19N3O6S
Mol.Wt.: 393.4
Status: Custom Synthesis

N-Nitroso Carvedilol

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CAT No: VS-N091113
CAS No: 2248746-67-8
Mol.F.: C24H25N3O5
Mol.Wt.: 435.5
Status: Custom Synthesis

Carvedilol Nitroso Impurity 2

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CAT No: VS-N091114
CAS No: N/A
Mol.F.: C24H25N3O5
Mol.Wt.: 435.5
Status: Custom Synthesis

N-Nitroso Duloxetine

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CAT No: VS-N091120
CAS No: N/A
Mol.F.: C18H18N2O2S
Mol.Wt.: 326.4
Status: Custom Synthesis

N-Nitroso dobutamine

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CAT No: VS-N091123
CAS No: N/A
Mol.F.: C18H22N2O4
Mol.Wt.: 330.4
Status: Custom Synthesis

N-Nitroso Clozapine

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CAT No: VS-N091124
CAS No: 156632-03-0
Mol.F.: C18H18ClN5O
Mol.Wt.: 355.8
Status: Custom Synthesis

N-Nitroso Desmethyl Edoxaban

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CAT No: VS-N091131
CAS No: N/A
Mol.F.: C23H27ClN8O5S
Mol.Wt.: 563.03
Status: Custom Synthesis

Hydralazine Nitroso Impurity

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CAT No: VS-N091133
CAS No: N/A
Mol.F.: C8H7N5O
Mol.Wt.: 189.18
Status: Custom Synthesis

N-Nitroso Cyclobenzaprine USP Related Compound B

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CAT No: VS-N091134
CAS No: N/A
Mol.F.: C19H18N2O
Mol.Wt.: 290.37
Status: Custom Synthesis

N,C-Didesmethyl Doxylamine N-Nitroso

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CAT No: VS-N091142
CAS No: NA
Mol.F.: C15H17N3O2
Mol.Wt.: 271.32
Status: Custom Synthesis

N-Nitroso Diltiazem EP Impurity D

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CAT No: VS-N091145
CAS No: NA
Mol.F.: C21H23N3O5S
Mol.Wt.: 429.5
Status: Custom Synthesis

N-Nitroso Desmethyl Azelastine

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CAT No: VS-N091146
CAS No: NA
Mol.F.: C21H21ClN4O2
Mol.Wt.: 396.9
Status: Custom Synthesis

N-Nitroso Amiodarone EP Impurity B

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CAT No: VS-N091147
CAS No: 678982-38-2
Mol.F.: C23H24I2N2O4
Mol.Wt.: 646.3
Status: Custom Synthesis

N-Nitroso Clopidogrel EP Impurity F

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CAT No: VS-N091149
CAS No: NA
Mol.F.: C15H15ClN2O3S
Mol.Wt.: 338.8
Status: Custom Synthesis

N-Nitroso Ciprofloxacin EP Impurity F

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CAT No: VS-N091150
CAS No: NA
Mol.F.: C17H18N4O5
Mol.Wt.: 358.13
Status: Custom Synthesis

N-Nitroso Cyclophosphamide

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CAT No: VS-N091151
CAS No: NA
Mol.F.: C7H14Cl2N3O3P
Mol.Wt.: 290.08
Status: Custom Synthesis

N-Nitroso Atropine EP Impurity B

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CAT No: VS-N091152
CAS No: 55855-45-3
Mol.F.: C16H20N2O4
Mol.Wt.: 304.3
Status: Custom Synthesis

N-Nitroso desmethyl Zopiclone

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CAT No: VS-N091153
CAS No: NA
Mol.F.: C₁₆H₁₄ClN₇O₄
Mol.Wt.: 403.78
Status: Custom Synthesis

N-Nitroso Desmethyl Prochlorperazine

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CAT No: VS-N091154
CAS No: 109095-35-4
Mol.F.: C19H21ClN4OS
Mol.Wt.: 388.91
Status: Custom Synthesis

Acalabrutinib Nitroso Impurity 1

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CAT No: VS-N091155
CAS No: NA
Mol.F.: C22H20N8O2
Mol.Wt.: 428.5
Status: Custom Synthesis

N-methyl-N-(2,3,4,5,6-pentahydroxyhexyl)nitrous amide

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CAT No: VS-N091156
CAS No: 62137-31-9
Mol.F.: C7H16N2O6
Mol.Wt.: 224.21
Status: Custom Synthesis

N-Nitroso Benazepril

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CAT No: VS-N091158
CAS No: NA
Mol.F.: C24H27N3O6
Mol.Wt.: 453.5
Status: Custom Synthesis

Nintedanib Nitroso Impurity 2

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CAT No: VS-N091159
CAS No: 2490403-92-2
Mol.F.: C13H17N5O4
Mol.Wt.: 307.31
Status: Custom Synthesis

Flecainide Nitroso Impurity

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CAT No: VS-N091160
CAS No: 2901109-58-6
Mol.F.: C17H19F6N3O4
Mol.Wt.: 443.35
Status: Custom Synthesis

Aceclofenac Nitroso Impurity 1

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CAT No: VS-N091162
CAS No: NA
Mol.F.: C16H12Cl2N2O5
Mol.Wt.: 383.2
Status: Custom Synthesis

N-Nitroso Doxazosin EP Impurity G

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CAT No: VS-N091168
CAS No: NA
Mol.F.: C14H18N6O3
Mol.Wt.: 318.34
Status: Custom Synthesis

N-Nitroso Doxazosin EP Impurity B

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CAT No: VS-N091169
CAS No: NA
Mol.F.: C13H15N3O4
Mol.Wt.: 277.3
Status: Custom Synthesis

N-Nitroso (S) Tamsulosin

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CAT No: VS-N091171
CAS No: NA
Mol.F.: C20H27N3O6S
Mol.Wt.: 437.51
Status: Custom Synthesis

N-Nitroso Diazepam EP Impurity D

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CAT No: VS-N091172
CAS No: 51145-18-7
Mol.F.: C14H11ClN2O2
Mol.Wt.: 274.7
Status: Custom Synthesis

Crizotinib Nitroso Impurity

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CAT No: VS-N091179
CAS No: NA
Mol.F.: C21H21Cl2FN6O2
Mol.Wt.: 479.3
Status: Custom Synthesis

N-Nitroso Ethyl Isonipecotate

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CAT No: VS-N091180
CAS No: 13256-15-0
Mol.F.: C8H14N2O3
Mol.Wt.: 186.2
Status: Custom Synthesis

N-Nitroso Desmethyl Orphenadrine

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CAT No: VS-N091181
CAS No: NA
Mol.F.: C17H20N2O2
Mol.Wt.: 284.4
Status: Custom Synthesis

N-Nitroso (±)-Epinephrine

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CAT No: VS-N091182
CAS No: NA
Mol.F.: C9H12N2O4
Mol.Wt.: 212.2
Status: Custom Synthesis

N-Nitroso Codeinone

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CAT No: VS-N091185
CAS No: NA
Mol.F.: C17H16N2O4
Mol.Wt.: 312.33
Status: Custom Synthesis

N-Nitroso Desipramine

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CAT No: VS-N091188
CAS No: 57164-17-7
Mol.F.: C18H21N3O
Mol.Wt.: 295.4
Status: Custom Synthesis

N-Nitroso Desmethyl Carbinoxamine

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CAT No: VS-N091189
CAS No: NA
Mol.F.: C15H16ClN3O2
Mol.Wt.: 305.8
Status: Custom Synthesis

N-Nitroso Desmethyl Cis-Doxepin

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CAT No: VS-N091190
CAS No: NA
Mol.F.: C18H18N2O2
Mol.Wt.: 294.4
Status: Custom Synthesis

N-Nitroso Desmethyl S-Chlorpheniramine

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CAT No: VS-N091192
CAS No: NA
Mol.F.: C15H16ClN3O
Mol.Wt.: 289.8
Status: Custom Synthesis

N-Nitroso Desmethyl Brompheniramine

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CAT No: VS-N091202
CAS No: NA
Mol.F.: C15H16BrN3O
Mol.Wt.: 334.2
Status: Custom Synthesis

N-Nitroso Diphenhydramine EP Impurity A

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CAT No: VS-N091203
CAS No: 55855-43-1
Mol.F.: C16H18N2O2
Mol.Wt.: 270.3
Status: Custom Synthesis

Brexpiprazole Nitroso Impurity 2

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CAT No: VS-N091207
CAS No: NA
Mol.F.: C17H22N4O3
Mol.Wt.: 330.4
Status: Custom Synthesis

Bilastine Nitroso Impurity 2

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CAT No: VS-N091208
CAS No: NA
Mol.F.: C16H22N4O2
Mol.Wt.: 302.4
Status: Custom Synthesis

Alogliptin Benzoate Dimer Nitroso Impurity

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CAT No: VS-N091210
CAS No: NA
Mol.F.: C31H29N9O5
Mol.Wt.: 607.6
Status: Custom Synthesis

N-Nitroso Betahistine EP Impurity C

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CAT No: VS-N091211
CAS No: NA
Mol.F.: C14H16N4O
Mol.Wt.: 256.3
Status: Custom Synthesis

N-Nitroso Des-ethyl Clomiphene

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CAT No: VS-N091212
CAS No: NA
Mol.F.: C24H23ClN2O2
Mol.Wt.: 406.9
Status: Custom Synthesis

N-Nitroso Cyproheptadine

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CAT No: VS-N091219
CAS No: NA
Mol.F.: C20H18N2O
Mol.Wt.: 302.38
Status: Custom Synthesis

N-nitroso desmethyl levomepromazine

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CAT No: VS-N091223
CAS No: NA
Mol.F.: C17H19N3O2S
Mol.Wt.: 329.42
Status: Custom Synthesis

Esmolol Acid Nitroso Impurity

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CAT No: VS-N091224
CAS No: NA
Mol.F.: C15H22N2O5
Mol.Wt.: 310.4
Status: Custom Synthesis

Esmolol Isopropyl Amine Nitroso Impurity

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CAT No: VS-N091225
CAS No: NA
Mol.F.: C18H29N3O4
Mol.Wt.: 351.4
Status: Custom Synthesis

N-Nitroso Atenolol EP Impurity G

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CAT No: VS-N091226
CAS No: NA
Mol.F.: C14H20N2O5
Mol.Wt.: 296.3
Status: Custom Synthesis

N-Nitroso Imatinib EP Impurity C (Possibility 2)

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CAT No: VS-N091228
CAS No: 2816369-80-7
Mol.F.: C28H28N8O2
Mol.Wt.: 508.6
Status: Custom Synthesis

Esmolol Nitroso Impurity 1

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CAT No: VS-N091230
CAS No: NA
Mol.F.: C31H45N3O8
Mol.Wt.: 587.7
Status: Custom Synthesis

N-Nitroso Imatinib

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CAT No: VS-N091231
CAS No: NA
Mol.F.: C29H30N8O2
Mol.Wt.: 522.6
Status: Custom Synthesis

N-Nitroso Imatinib EP Impurity F

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CAT No: VS-N091233
CAS No: NA
Mol.F.: C16H14N6O
Mol.Wt.: 306.3
Status: Custom Synthesis

N-Nitroso Cariprazine

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CAT No: VS-N091237
CAS No: NA
Mol.F.: C21H31Cl2N5O2
Mol.Wt.: 456.4
Status: Custom Synthesis

N-Nitroso Azithromycin EP Impurity I

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CAT No: VS-N091238
CAS No: NA
Mol.F.: C37H69N3O13
Mol.Wt.: 764.0
Status: Custom Synthesis

N-Nitroso Cinnarizine EP Impurity A

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CAT No: VS-N091239
CAS No: 1698-25-5
Mol.F.: C17H19N3O
Mol.Wt.: 281.4
Status: Custom Synthesis

Abemaciclib Nitroso Metabolites M2

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CAT No: VS-N091240
CAS No: NA
Mol.F.: C25H27F2N9O
Mol.Wt.: 507.5
Status: Custom Synthesis

Ketoconazole Nitroso EP Impurity D

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CAT No: VS-N091241
CAS No: NA
Mol.F.: C24H25Cl2N5O4
Mol.Wt.: 518.4
Status: Custom Synthesis

Clopidogrel Nitroso Impurity

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CAT No: VS-N091243
CAS No: 2460755-43-3
Mol.F.: C7H8N2OS
Mol.Wt.: 168.2
Status: Custom Synthesis

Diclofenac Desacetate Nitroso Impurity

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CAT No: VS-N091245
CAS No: NA
Mol.F.: C12H8Cl2N2O
Mol.Wt.: 267.1
Status: Custom Synthesis
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