Impurity Reference Standards

Nitrosamine Impurities

N-nitrosamine reference standards, including small nitrosamines and nitrosamine drug substance related impurities, for trace LC-MS risk testing.

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Dinitrosodimethyl Propanediamine

CAS: 6972-76-5
Formula: C₅H₁₂N₄O₂
MW: 160.17 g/mol

ZX-031594

Dinitrosopentamethylenetetramine

CAS: 101-25-7
Formula: C₅H₁₀N₆O₂
MW: 186.17 g/mol

ZX-031609

Dioctylnitrosamine

CAS: 6335-97-3
Formula: C₁₆H₃₄N₂O
MW: 270.45 g/mol

ZX-026195

Ethyl 1-nitrosopiperidine-4-carboxylate

CAS: 160114-74-9
Formula: C₈H₁₄N₂O₃
MW: 186.21 g/mol

ZX-026216

Ethyl 2-[Nitroso(phenylmethyl)amino]acetate

CAS: 50270-42-3
Formula: C₁₁H₁₄N₂O₃
MW: 222.24 g/mol

ZX-031621

Ethyl 4-(methyl(nitroso)amino)benzoate

CAS: 208176-48-1
Formula: C₁₀H₁₂N₂O₃
MW: 208.21 g/mol

ZX-023537

Ethyl 5-(4-nitrosopiperazin-1-yl)benzofuran-2-carboxylate

CAS: 2512217-82-0
Formula: C₁₅H₁₇N₃O₄
MW: 303.31 g/mol

ZX-027580

Ethyl Ethylene diamine nitroso Impurity (Mixture of Rotamers)

CAS: 2680539-26-6
Formula: C₄H₁₁N₃O
MW: 117.15 g/mol

ZX-006099

Fluoxetine Nitroso EP Impurity A

CAS: 2659259-65-9
Formula: C₁₀H₁₄N₂O₂
MW: 194.23 g/mol

ZX-021715

Fluoxetine Nitroso EP Impurity B

CAS: 259547-00-7
Formula: C₁₀H₁₄N₂O
MW: 178.23 g/mol

ZX-006100

Fluoxetine Nitroso Impurity 2

CAS: 861381-14-8
Formula: C₁₀H₁₂N₂O₂
MW: 192.21 g/mol

ZX-006101

Hexahydro-1,3,5-trinitroso-1,3,5-triazine

CAS: 13980-04-6
Formula: C₃H₆N₆O₃
MW: 174.12 g/mol

ZX-026188

Ibrutinib Nitroso Impurity 1

CAS: 2256059-43-3
Formula: C₂₂H₂₁N₇O₂
MW: 415.4 g/mol

ZX-006102

Iguratimod impurity G

CAS: 1179354-65-4
Formula: C₁₈H₁₆N₂O₆S
MW: 388.4 g/mol

ZX-029904

Indapamide EP Impurity A

CAS: 85440-79-5
Formula: C₉H₁₀N₂O
MW: 162.19 g/mol

ZX-020294

Isonitrosoacetone

CAS: 306-44-5
Formula: C₃H₅NO₂
MW: 87.08 g/mol

ZX-040049

Isonitrosoacetophenone

CAS: 532-54-7
Formula: C₈H₇NO₂
MW: 149.15 g/mol

ZX-040669

Linagliptin Nitroso Impurity

CAS: 1973427-27-8
Formula: C₁₀H₁₉N₃O₃
MW: 229.28 g/mol

ZX-006103

Linagliptin Nitroso Pyrimidine Impurity

CAS: 6972-78-7
Formula: C₅H₆N₄O₃
MW: 170.13 g/mol

ZX-025410

Methyl 2-(methyl(nitroso)amino)benzoate

CAS: 68061-82-5
Formula: C₉H₁₀N₂O₃
MW: 194.19 g/mol

ZX-006104

Methylpropylnitrosamine

CAS: 924-46-9
Formula: C₄H₁₀N₂O
MW: 102.14 g/mol

ZX-027507

Methylvinylnitrosamine

CAS: 4549-40-0
Formula: C₃H₆N₂O
MW: 86.09 g/mol

ZX-035169

Mirabegron Nitroso Impurity 1

CAS: 3032026-54-0
Formula: C₁₆H₁₉N₃O₂
MW: 285.34 g/mol

ZX-006105

Mirabegron Nitroso Impurity 12

CAS: 3035190-51-0
Formula: C₁₆H₁₇N₃O₄
MW: 315.32 g/mol

ZX-025652

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