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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N-Nitroso Ethylene Diamino Triacetic Acid (TFA Salt)

CAS: 862542-34-5
Formula: C₈H₁₃N₃O₇
MW: 263.2 g/mol

ZX-006130

N-Nitroso Fenfluramine

CAS: 19023-40-6
Formula: C₁₂H₁₅F₃N₂O
MW: 260.26 g/mol

ZX-026235

N-Nitroso Flecainide

CAS: 2901109-58-6
Formula: C₁₇H₁₉F₆N₃O₄
MW: 443.34 g/mol

ZX-023108

N-Nitroso Flufenamic Acid

CAS: 23595-00-8
Formula: C₁₄H₉F₃N₂O₃
MW: 310.23 g/mol

ZX-024624

N-Nitroso Fluoxetine

CAS: 150494-06-7
Formula: C₁₇H₁₇F₃N₂O₂
MW: 338.32 g/mol

ZX-006131

N-Nitroso Folic Acid

CAS: 26360-21-4
Formula: C₁₉H₁₈N₈O₇
MW: 470.4 g/mol

ZX-006132

N-Nitroso Gabapentin EP Impurity A

CAS: 856068-98-9
Formula: C₉H₁₄N₂O₂
MW: 182.22 g/mol

ZX-029677

N-Nitroso Guvacoline

CAS: 55557-02-3
Formula: C₇H₁₀N₂O₃
MW: 170.17 g/mol

ZX-047926

N-Nitroso Hydrochlorothiazide

CAS: 63779-86-2
Formula: C₇H₇ClN₄O₅S₂
MW: 326.7 g/mol

ZX-006133

N-Nitroso Iminostilbene

CAS: 38652-29-8
Formula: C₁₄H₁₀N₂O
MW: 222.24 g/mol

ZX-021033

N-Nitroso Indoline

CAS: 7633-57-0
Formula: C₈H₈N₂O
MW: 148.16 g/mol

ZX-031358

N-Nitroso Itraconazole Impurity 1

CAS: 75051-59-1
Formula: C₁₁H₁₅N₃O₂
MW: 221.26 g/mol

ZX-006134

N-Nitroso ketamine

CAS: 86144-35-6
Formula: C₁₃H₁₅ClN₂O₂
MW: 266.72 g/mol

ZX-030102

N-Nitroso L-Arginine

CAS: 151512-14-0
Formula: C₆H₁₂N₄O₃
MW: 188.18 g/mol

ZX-027839

N-Nitroso Labetalol

CAS: 2820170-74-7
Formula: C₁₉H₂₃N₃O₄
MW: 357.4 g/mol

ZX-020300

N-Nitroso Leucine Impurity

CAS: 78814-91-2
Formula: C₈H₁₄N₂O₄
MW: 202.21 g/mol

ZX-030327

N-Nitroso Levofloxacin EP Impurity B

CAS: 1152314-62-9
Formula: C₁₇H₁₇FN₄O₅
MW: 376.3 g/mol

ZX-006135

N-Nitroso Lidocaine EP Impurity D

CAS: 3033377-17-9
Formula: C₁₂H₁₇N₃O₂
MW: 235.28 g/mol

ZX-022020

N-Nitroso Linagliptin Impurity (R Isomer)

CAS: 3031851-92-7
Formula: C₁₀H₁₉N₃O₃
MW: 229.28 g/mol

ZX-006136

N-Nitroso Lisinopril

CAS: 519175-80-5
Formula: C₂₁H₃₀N₄O₆
MW: 434.5 g/mol

ZX-006137

N-Nitroso Lorcaserin

CAS: 2518136-84-8
Formula: C₁₁H₁₃ClN₂O
MW: 224.68 g/mol

ZX-033765

N-Nitroso Maprotiline

CAS: 204268-61-1
Formula: C₂₀H₂₂N₂O
MW: 306.4 g/mol

ZX-030437

N-Nitroso Melatonin

CAS: 278783-22-5
Formula: C₁₃H₁₅N₃O₃
MW: 261.28 g/mol

ZX-020328

N-Nitroso Methylphenidate

CAS: 55557-03-4
Formula: C₁₄H₁₈N₂O₃
MW: 262.3 g/mol

ZX-032951

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