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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.

N-Nitroso N-Desmethyl Citalopram

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CAT No: VS-N091028
CAS No: N/A
Mol.F.: C19H18FN3O2
Mol.Wt.: 339.4
Status: Custom Synthesis

N-Nitroso Pseudoephedrine

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CAT No: VS-N091029
CAS No: 1850-88-0
Mol.F.: C10H14N2O2
Mol.Wt.: 194.2
Status: Custom Synthesis

N-Nitroso ketamine

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CAT No: VS-N091037
CAS No: 86144-35-6
Mol.F.: C13H15ClN2O2
Mol.Wt.: 266.7
Status: Custom Synthesis

N-Nitroso linezolid Impurity 1

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CAT No: VS-N091039
CAS No: N/A
Mol.F.: C16H19FN4O5
Mol.Wt.: 366.3
Status: Custom Synthesis

N-Nitroso Levofloxacin EP Impurity B

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CAT No: VS-N091040
CAS No: 1152314-62-9
Mol.F.: C17H17FN4O5
Mol.Wt.: 376.3
Status: Custom Synthesis

N-Nitroso N-Desbutyl Lumefantrine

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CAT No: VS-N091041
CAS No: N/A
Mol.F.: C26H23Cl3N2O2
Mol.Wt.: 501.8
Status: Custom Synthesis

N-Nitroso Labetolol

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CAT No: VS-N091043
CAS No: 2820170-74-7
Mol.F.: C19H23N3O4
Mol.Wt.: 357.4
Status: Custom Synthesis

N-Nitroso S-Mirabegron

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CAT No: VS-N091044
CAS No: N/A
Mol.F.: C21H23N5O3S
Mol.Wt.: 425.5
Status: Custom Synthesis

N-Nitroso Mirabegron

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CAT No: VS-N091045
CAS No: N/A
Mol.F.: C21H23N5O3S
Mol.Wt.: 425.5
Status: Custom Synthesis

N-Nitroso Methylphenidate

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CAT No: VS-N091047
CAS No: 55557-03-4
Mol.F.: C14H18N2O3
Mol.Wt.: 262.3
Status: Custom Synthesis

N-Nitroso Metformin

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CAT No: VS-N091048
CAS No: N/A
Mol.F.: C4H10N6O
Mol.Wt.: 158.2
Status: Custom Synthesis

N-nitroso moxifloxacin

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CAT No: VS-N091049
CAS No: N/A
Mol.F.: C21H23FN4O5
Mol.Wt.: 430.43
Status: Custom Synthesis

N-Nitroso Niraparib

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CAT No: VS-N091051
CAS No: NA
Mol.F.: C19H19N5O2
Mol.Wt.: 349.4
Status: Custom Synthesis

N-Nitroso Nortriptyline-D3

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CAT No: VS-N091052
CAS No: NA
Mol.F.: C19H17D3N2O
Mol.Wt.: 295.39
Status: Custom Synthesis

N-Nitroso Nortriptyline

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CAT No: VS-N091053
CAS No: 55855-42-0
Mol.F.: C19H20N2O
Mol.Wt.: 292.4
Status: Custom Synthesis

N-Nitroso Nebivolol D4

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CAT No: VS-N091054
CAS No: NA
Mol.F.: C22H20D4F2N2O5
Mol.Wt.: 438.5
Status: Custom Synthesis

N-Nitroso Nimodipine

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CAT No: VS-N091057
CAS No: NA
Mol.F.: C21H25N3O8
Mol.Wt.: 447.44
Status: Custom Synthesis

N-Nitroso N-Desbenzyl Nicardipine

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CAT No: VS-N091059
CAS No: NA
Mol.F.: C19H22N4O7
Mol.Wt.: 418.4
Status: Custom Synthesis

N-Nitroso Perindopril

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CAT No: VS-N091065
CAS No: NA
Mol.F.: C19H31N3O6
Mol.Wt.: 397.5
Status: Custom Synthesis

N-Nitroso Perindopril IMPURITY B

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CAT No: VS-N091066
CAS No: NA
Mol.F.: C17H27N3O6
Mol.Wt.: 369.42
Status: Custom Synthesis

N-Nitroso Promethazine EP Impurity A

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CAT No: VS-N091067
CAS No: 36144-72-6
Mol.F.: C12H8N2OS
Mol.Wt.: 228.3
Status: Custom Synthesis

N-Nitroso Paracetamol

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CAT No: VS-N091068
CAS No: 146897-60-1
Mol.F.: C8H8N2O3
Mol.Wt.: 180.2
Status: Custom Synthesis

N-Nitroso Quetiapine EP Impurity B D8

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CAT No: VS-N091069
CAS No: NA
Mol.F.: C17H8D8N4OS
Mol.Wt.: 332.5
Status: Custom Synthesis

N-Nitroso Ramipril

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CAT No: VS-N091071
CAS No: NA
Mol.F.: C23H31N3O6
Mol.Wt.: 445.5
Status: Custom Synthesis

N-Nitroso Rasagiline-D4

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CAT No: VS-N091072
CAS No: NA
Mol.F.: C12H8D4N2O
Mol.Wt.: 204.12
Status: Custom Synthesis

N-Nitroso Ranolazine

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CAT No: VS-N091080
CAS No: NA
Mol.F.: C24H32N4O5
Mol.Wt.: 456.5
Status: Custom Synthesis

N-Nitroso Salbutamol

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CAT No: VS-N091084
CAS No: 2919946-71-5
Mol.F.: C13H20N2O4
Mol.Wt.: 268.31
Status: Custom Synthesis

N-Nitroso Sitagliptin Impurity

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CAT No: VS-N091087
CAS No: 2892260-32-9
Mol.F.: C6H6F3N5O
Mol.Wt.: 221.1
Status: Custom Synthesis

N-Nitroso Trimetazidine

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CAT No: VS-N091088
CAS No: N/A
Mol.F.: C14H21N3O4 : HCl
Mol.Wt.: 295.3 : 36.5
Status: Custom Synthesis

N-Nitroso Tigecycline

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CAT No: VS-N091089
CAS No: N/A
Mol.F.: C29H38N6O9
Mol.Wt.: 614.66
Status: Custom Synthesis

N-Nitroso Trimetazidine-D9

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CAT No: VS-N091090
CAS No: N/A
Mol.F.: C14H13D9ClN3O4
Mol.Wt.: 340.85
Status: Custom Synthesis

N-Nitroso Tamsulosin-D4

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CAT No: VS-N091091
CAS No: N/A
Mol.F.: C20H23D4N3O6S
Mol.Wt.: 441.53
Status: Custom Synthesis

N-Nitroso Tamsulosin Impurity

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CAT No: VS-N091092
CAS No: 2892260-31-8
Mol.F.: C20H27N3O6S
Mol.Wt.: 437.5
Status: Custom Synthesis

N-Nitroso Varenicline

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CAT No: VS-N091095
CAS No: 2755871-02-2
Mol.F.: C13H12N4O
Mol.Wt.: 240.3
Status: Custom Synthesis

N-Nitroso Vildagliptin

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CAT No: VS-N091096
CAS No: N/A
Mol.F.: C17H24N4O3
Mol.Wt.: 332.4
Status: Custom Synthesis

N-Nitroso Zanubrutinib

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CAT No: VS-N091098
CAS No: N/A
Mol.F.: C27H28N6O4
Mol.Wt.: 500.6
Status: Custom Synthesis

N-Nitroso Zolmitriptan EP Impurity G (possibility 1)

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CAT No: VS-N091099
CAS No: N/A
Mol.F.: C15H18N4O3
Mol.Wt.: 302.3
Status: Custom Synthesis

N-Nitroso Vortioxetine Impurity-2

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CAT No: VS-N091104
CAS No: N/A
Mol.F.: C18H21N3OS
Mol.Wt.: 327.45
Status: Custom Synthesis

N-Nitroso Vortioxetine Impurity-3

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CAT No: VS-N091105
CAS No: N/A
Mol.F.: C18H21N3O2S
Mol.Wt.: 343.45
Status: Custom Synthesis

N-Nitroso Vortioxetine

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CAT No: VS-N091106
CAS No: N/A
Mol.F.: C18H21N3OS
Mol.Wt.: 327.45
Status: Custom Synthesis

N-NITROSO OXCARBAZEPINE EP IMPURITY C

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CAT No: VS-N091107
CAS No: N/A
Mol.F.: C14H10N2O2
Mol.Wt.: 238.25
Status: Custom Synthesis

N-Nitroso N-Desmethyl Olopatadine

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CAT No: VS-N091108
CAS No: N/A
Mol.F.: C20H20N2O4
Mol.Wt.: 352.39
Status: Custom Synthesis

N-Nitroso paroxetine Impurity

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CAT No: VS-N091110
CAS No: 2361294-43-9
Mol.F.: C19H19FN2O4
Mol.Wt.: 358.4
Status: Custom Synthesis

N-Nitroso Quinapril

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CAT No: VS-N091111
CAS No: 2922985-13-3
Mol.F.: C25H29N3O6
Mol.Wt.: 467.52
Status: Custom Synthesis

N-Nitroso Lisinopril

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CAT No: VS-N091116
CAS No: 519175-80-5
Mol.F.: C21H30N4O6
Mol.Wt.: 434.5
Status: Custom Synthesis

N-Nitroso Ranolazine USP Related Compound C

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CAT No: VS-N091117
CAS No: N/A
Mol.F.: C14H20N4O2
Mol.Wt.: 276.3
Status: Custom Synthesis

N-Nitroso Varenicline Ortho Dinitro Impurity

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CAT No: VS-N091119
CAS No: 2803960-63-4
Mol.F.: C11H10N4O5
Mol.Wt.: 278.2
Status: Custom Synthesis

N-Nitroso Lacosamide

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CAT No: VS-N091121
CAS No: N/A
Mol.F.: C13H17N3O4
Mol.Wt.: 279.29
Status: Custom Synthesis

N-Nitroso Salmeterol

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CAT No: VS-N091126
CAS No: N/A
Mol.F.: C25H36N2O5
Mol.Wt.: 444.57
Status: Custom Synthesis

N-Nitroso Esomeprazole

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CAT No: VS-N091127
CAS No: N/A
Mol.F.: C16H16N4O3S
Mol.Wt.: 344.4
Status: Custom Synthesis

N-Nitroso Famotidine I

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CAT No: VS-N091128
CAS No: N/A
Mol.F.: C8H14N8O3S3
Mol.Wt.: 366.43
Status: Custom Synthesis

N-Nitroso Lansoprazole

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CAT No: VS-N091130
CAS No: N/A
Mol.F.: C16H13F3N4O3S
Mol.Wt.: 398.36
Status: Custom Synthesis

N-Nitroso Nintedanib

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CAT No: VS-N091132
CAS No: N/A
Mol.F.: C31H32N6O5
Mol.Wt.: 568.6
Status: Custom Synthesis

N-Nitroso Vortioxetine

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CAT No: VS-N091135
CAS No: 2925447-38-5
Mol.F.: C18H21N3OS
Mol.Wt.: 327.4
Status: Custom Synthesis

N-Nitroso Teneligliptin

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CAT No: VS-N091136
CAS No: NA
Mol.F.: C22H29N7O2S
Mol.Wt.: 455.6
Status: Custom Synthesis

N-Nitroso Sildenafil

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CAT No: VS-N091138
CAS No: NA
Mol.F.: C22H29N7O5S
Mol.Wt.: 503.6
Status: Custom Synthesis

N-Nitroso Safinamide

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CAT No: VS-N091139
CAS No: 2657645-00-4
Mol.F.: C17H18FN3O3
Mol.Wt.: 331.3
Status: Custom Synthesis

N-Nitroso N-Desmethyl Doxepin Impurity

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CAT No: VS-N091140
CAS No: NA
Mol.F.: C18H18N2O2
Mol.Wt.: 294.4
Status: Custom Synthesis

N-Nitroso N-Desmethyl Methylene Blue

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CAT No: VS-N091157
CAS No: NA
Mol.F.: C15H15ClN4OS
Mol.Wt.: 334.82
Status: Custom Synthesis

N-Nitroso Terbinafine EP Impurity A

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CAT No: VS-N091161
CAS No: 296760-88-8
Mol.F.: C12H12N2O
Mol.Wt.: 200.2
Status: Custom Synthesis

N-Nitroso N-Desmethyl Ponatinib

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CAT No: VS-N091163
CAS No: NA
Mol.F.: C28H24F3N7O2
Mol.Wt.: 547.5
Status: Custom Synthesis

N-Nitroso Rivaroxaban Open-Ring Acid Impurity

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CAT No: VS-N091164
CAS No: NA
Mol.F.: C19H19ClN4O7S
Mol.Wt.: 482.9
Status: Custom Synthesis

N-Nitroso Trazodone Impurity

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CAT No: VS-N091173
CAS No: NA
Mol.F.: C23H29Cl2N5O
Mol.Wt.: 462.4
Status: Custom Synthesis

N-Nitroso Ropinirole EP Impurity D

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CAT No: VS-N091174
CAS No: NA
Mol.F.: C13H17N3O2
Mol.Wt.: 247.3
Status: Custom Synthesis

N-Nitroso Oxcarbazepine EP Impurity H

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CAT No: VS-N091175
CAS No: NA
Mol.F.: C15H12N2O2
Mol.Wt.: 252.3
Status: Custom Synthesis

N-Nitroso Oxcarbazepine EP Impurity D

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CAT No: VS-N091176
CAS No: NA
Mol.F.: C14H8N2O3
Mol.Wt.: 252.2
Status: Custom Synthesis

N-Nitroso Salbutamol EP Impurity J

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CAT No: VS-N091177
CAS No: NA
Mol.F.: C13H18N2O4
Mol.Wt.: 266.3
Status: Custom Synthesis

N-Nitroso O-Benzyl Indacaterol

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CAT No: VS-N091178
CAS No: NA
Mol.F.: C31H33N3O4
Mol.Wt.: 511.6
Status: Custom Synthesis

N-Nitroso N-Desmethyl Tramadol

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CAT No: VS-N091183
CAS No: NA
Mol.F.: C15H22N2O3
Mol.Wt.: 278.4
Status: Custom Synthesis

N-Nitroso Perindopril EP Impurity A

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CAT No: VS-N091184
CAS No: 2912492-21-6
Mol.F.: C9H14N2O3
Mol.Wt.: 198.2
Status: Custom Synthesis

N-Nitroso Valsartan Methyl Ester

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CAT No: VS-N091186
CAS No: NA
Mol.F.: C20H22N6O3
Mol.Wt.: 394.4
Status: Custom Synthesis

N-Nitroso Lorcaserin

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CAT No: VS-N091187
CAS No: 2518136-84-8
Mol.F.: C11H13ClN2O
Mol.Wt.: 224.69
Status: Custom Synthesis

N-Nitroso Norpheniramine

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CAT No: VS-N091193
CAS No: NA
Mol.F.: C15H17N3O
Mol.Wt.: 255.3
Status: Custom Synthesis

N-Nitroso N-Desmethyl Mepyramine

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CAT No: VS-N091194
CAS No: NA
Mol.F.: C16H20N4O2
Mol.Wt.: 300.4
Status: Custom Synthesis

N-Nitroso Sumatriptan

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CAT No: VS-N091195
CAS No: NA
Mol.F.: C14H20N4O3S
Mol.Wt.: 324.4
Status: Custom Synthesis

N-Nitroso Levalbuterol

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CAT No: VS-N091196
CAS No: NA
Mol.F.: C13H20N2O4
Mol.Wt.: 268.31
Status: Custom Synthesis

N-Nitroso Pethidine EP Impurity E

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CAT No: VS-N091197
CAS No: 13458-16-7
Mol.F.: C14H18N2O3
Mol.Wt.: 262.3
Status: Custom Synthesis

N-Nitroso Quinapril EP Impurity C

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CAT No: VS-N091198
CAS No: NA
Mol.F.: C23H25N3O6
Mol.Wt.: 439.5
Status: Custom Synthesis

N-Nitroso Oxymetazoline

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CAT No: VS-N091199
CAS No: NA
Mol.F.: C16H23N3O2
Mol.Wt.: 289.4
Status: Custom Synthesis

N-Nitroso N-Desmethyl Sildenafil

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CAT No: VS-N091200
CAS No: NA
Mol.F.: C21H27N7O5S
Mol.Wt.: 489.6
Status: Custom Synthesis

N-Nitroso N-desmethyl Pheniramine

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CAT No: VS-N091201
CAS No: NA
Mol.F.: C15H17N3O
Mol.Wt.: 255.31 
Status: Custom Synthesis

N-Nitroso Zolmitriptan

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CAT No: VS-N091204
CAS No: NA
Mol.F.: C16H20N4O3
Mol.Wt.: 316.4
Status: Custom Synthesis

N-Nitroso Ramipril EP Impurity F

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CAT No: VS-N091213
CAS No: NA
Mol.F.: C15H20N2O5
Mol.Wt.: 308.3
Status: Custom Synthesis

N-Nitroso Ramipril EP Impurity C

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CAT No: VS-N091214
CAS No: NA
Mol.F.: C23H37N3O6
Mol.Wt.: 451.56
Status: Custom Synthesis

N-Nitroso Linagliptin Impurity

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CAT No: VS-N091216
CAS No: 3031851-92-7
Mol.F.: C10H19N3O3
Mol.Wt.: 229.3
Status: Custom Synthesis

N-Nitroso Trazodone Impurity 1

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CAT No: VS-N091217
CAS No: 2219339-13-4
Mol.F.: C10H12ClN3O
Mol.Wt.: 225.7
Status: Custom Synthesis

N-nitroso Terbutaline

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CAT No: VS-N091218
CAS No: NA
Mol.F.: C12H18N2O4
Mol.Wt.: 254.3
Status: Custom Synthesis

N-Nitroso N-Desmethyl Olanzapine

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CAT No: VS-N091220
CAS No: NA
Mol.F.: C16H17N5OS
Mol.Wt.: 327.4
Status: Custom Synthesis

N-Nitroso Paroxetine EP Impurity A

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CAT No: VS-N091221
CAS No: NA
Mol.F.: C19H20N2O4
Mol.Wt.: 340.4
Status: Custom Synthesis

N-Nitroso Linezolid Descarbonyl (R)-Isomer

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CAT No: VS-N091222
CAS No: NA
Mol.F.: C15H21FN4O4
Mol.Wt.: 340.4
Status: Custom Synthesis

N-Nitroso Paroxetine EP Impurity I

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CAT No: VS-N091227
CAS No: NA
Mol.F.: C12H15FN2O2
Mol.Wt.: 238.3
Status: Custom Synthesis

N-Nitroso Metamizole EP Impurity C

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CAT No: VS-N091229
CAS No: 73829-38-6
Mol.F.: C12H14N4O2
Mol.Wt.: 246.3
Status: Custom Synthesis

N-Nitroso Imatinib EP Impurity J

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CAT No: VS-N091232
CAS No: NA
Mol.F.: C29H30N8O3
Mol.Wt.: 538.61
Status: Custom Synthesis

N-Nitroso Olanzapine EP Impurity D

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CAT No: VS-N091234
CAS No: NA
Mol.F.: C17H19N5O2S
Mol.Wt.: 357.4
Status: Custom Synthesis

N-Nitroso Olanzapine EP Impurity B

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CAT No: VS-N091235
CAS No: NA
Mol.F.: C12H9N3O2S
Mol.Wt.: 259.3
Status: Custom Synthesis

N-Nitroso Linezolid open ring Impurity (R Isomer)

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CAT No: VS-N091236
CAS No: NA
Mol.F.: C16H19FN4O6
Mol.Wt.: 382.35
Status: Custom Synthesis

N-Nitroso N-Desmethyl Clindamycin

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CAT No: VS-N091242
CAS No: NA
Mol.F.: C17H30ClN3O6S
Mol.Wt.: 439.95
Status: Custom Synthesis

N-Nitroso Valganciclovir EP Impurity N

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CAT No: VS-N091244
CAS No: NA
Mol.F.: C15H23N7O6
Mol.Wt.: 397.4
Status: Custom Synthesis

N-Nitroso Piperaquine Impurity A

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CAT No: VS-N091246
CAS No: 32863-63-1
Mol.F.: C13H13ClN4O
Mol.Wt.: 276.7
Status: Custom Synthesis

N-Nitroso Rifabutin

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CAT No: VS-N091247
CAS No: NA
Mol.F.: C46H61N5O12
Mol.Wt.: 876.0
Status: Custom Synthesis
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