Skip to content

Impurities & Reference Standards

Nitrosamine Impurities

Source 294 nitrosamine impurities for research, QC and production, documented with COA and SDS.

631products

263in stock

COA + SDSwith every lot

Reference Standard

N-Nitroso Phenylephrine chemical structure

N-Nitroso Phenylephrine

CAS: 78658-64-7
Formula: C₉H₁₂N₂O₃
MW: 196.2 g/mol

VQ-023694

Reference Standard

N-Nitroso Pirfenidone EP Impurity A chemical structure

N-Nitroso Pirfenidone EP Impurity A

CAS: 126209-21-0
Formula: C₆H₇N₃O
MW: 137.14 g/mol

VQ-033127

Reference Standard

N-Nitroso Pirfenidone EP Impurity B chemical structure

N-Nitroso Pirfenidone EP Impurity B

CAS: 2512237-43-1
Formula: C₆H₆N₂O₂
MW: 138.12 g/mol

VQ-027446

Reference Standard

N-Nitroso Potassium Clavulanate EP Impurity L

N-Nitroso Potassium Clavulanate EP Impurity L

CAS: 54044-82-5
Formula: C₈H₁₉N₃O
MW: 173.26 g/mol

VQ-033261

Reference Standard

N-Nitroso Pramipexole chemical structure

N-Nitroso Pramipexole

CAS: 3028194-78-4
Formula: C₁₀H₁₆N₄OS
MW: 240.33 g/mol

In stock

Reference Standard

N-Nitroso Prazosin EP Impurity C

N-Nitroso Prazosin EP Impurity C

CAS: 3112735-70-0
Formula: C₁₄H₁₈N₆O₃
MW: 318.33 g/mol

In stock

Reference Standard

N-Nitroso Prazosin EP Impurity D

N-Nitroso Prazosin EP Impurity D

Formula: C₉H₁₁N₃O₃
MW: 209.2 g/mol

In stock

Reference Standard

N-Nitroso Prilocaine chemical structure

N-Nitroso Prilocaine

CAS: 211490-46-9
Formula: C₁₃H₁₉N₃O₂
MW: 249.31 g/mol

VQ-023552

Reference Standard

N-Nitroso Propranolol chemical structure

N-Nitroso Propranolol

CAS: 84418-35-9
Formula: C₁₆H₂₀N₂O₃
MW: 288.34 g/mol

In stock

Reference Standard

N-Nitroso Pyrantel Pamoate Impurity

N-Nitroso Pyrantel Pamoate Impurity

Formula: C₁₁H₁₅N₃O₂S
MW: 253.32 g/mol

In stock

Reference Standard

N-Nitroso Pyrantel Pamoate Impurity (stage-I) chemical structure

N-Nitroso Pyrantel Pamoate Impurity (stage-I)

CAS: 1449108-86-4
Formula: C₁₆H₂₄N₂O₃S
MW: 324.4 g/mol

In stock

Reference Standard

N-Nitroso Pyrantel Pamoate Impurity (stage-II)(Freebase) chemical structure

N-Nitroso Pyrantel Pamoate Impurity (stage-II)(Freebase)

CAS: 36700-39-7
Formula: C₁₁H₁₆N₂OS
MW: 224.32 g/mol

VQ-006946

Reference Standard

N-Nitroso Pyrantel Pamoate Impurity (stage-II)(Hydrochloride) chemical structure

N-Nitroso Pyrantel Pamoate Impurity (stage-II)(Hydrochloride)

CAS: 1449108-90-0
Formula: C₁₁H₁₇ClN₂OS
MW: 260.78 g/mol

In stock

Reference Standard

N-Nitroso Quetiapine HEEP Impurity chemical structure

N-Nitroso Quetiapine HEEP Impurity

CAS: 73486-81-4
Formula: C₈H₁₇N₃O₃
MW: 203.24 g/mol

VQ-021295

Reference Standard

N-Nitroso Quinapril chemical structure

N-Nitroso Quinapril

CAS: 2922985-13-3
Formula: C₂₅H₂₉N₃O₆
MW: 467.5 g/mol

VQ-044306

Reference Standard

N-Nitroso Quinapril Decarboxy Impurity (Rotamers)

N-Nitroso Quinapril Decarboxy Impurity (Rotamers)

Formula: C₂₄H₂₉N₃O₄
MW: 423.51 g/mol

In stock

Reference Standard

N-Nitroso Rac N-Desmethyl Tramadol

N-Nitroso Rac N-Desmethyl Tramadol

Formula: C₁₅H₂₂N₂O₃
MW: 278.35 g/mol

VQ-006949

Reference Standard

N-Nitroso Ramipril chemical structure

N-Nitroso Ramipril

CAS: 3028194-80-8
Formula: C₂₃H₃₁N₃O₆
MW: 445.5 g/mol

In stock

Reference Standard

N-Nitroso Ranolazine Impurity C chemical structure

N-Nitroso Ranolazine Impurity C

Formula: C₁₄H₂₁N₃O₄
MW: 295.33 g/mol

In stock

Reference Standard

N-Nitroso Ranolazine USP Related Compound C chemical structure

N-Nitroso Ranolazine USP Related Compound C

Formula: C₁₄H₂₀N₄O₂
MW: 276.33 g/mol

In stock

Reference Standard

N-Nitroso Ranolazine USP Related Compound C

N-Nitroso Ranolazine USP Related Compound C

CAS: 3038740-93-8
Formula: C₁₄H₂₀N₄O₂
MW: 276.33 g/mol

VQ-035222

Reference Standard

N-Nitroso Rasagiline chemical structure

N-Nitroso Rasagiline

CAS: 2470278-90-9
Formula: C₁₂H₁₂N₂O
MW: 200.24 g/mol

In stock

Reference Standard

N-Nitroso Ribociclib Impurity 4 chemical structure

N-Nitroso Ribociclib Impurity 4

Formula: C₉H₁₀BrClN₄O
MW: 305.56 g/mol

VQ-006954

Reference Standard

N-Nitroso Risdiplam chemical structure

N-Nitroso Risdiplam

Formula: C₂₂H₂₂N₈O₂
MW: 430.5 g/mol

In stock

Need a price, a spec or a custom compound?

Send us your list — product names or CAS numbers, grade, quantity and destination. Our team replies with a formal quotation, COA and lead time.

Request a quote Contact sales