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Impurity Reference Standards

Pharmacopoeial impurities, nitrosamines, metabolites, labelled internal standards and API working standards, each backed by analytical data for method development and QC.

20,060 products6 categories2,050 in stockCOA + SDS with every lot

20,060 products · page 622 of 836

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N-Nitrosopiperidine

CAS: 100-75-4
Formula: C₅H₁₀N₂O
MW: 114.15 g/mol

ZX-006194

N-Nitrosopropylbutylamine

CAS: 25413-64-3
Formula: C₇H₁₆N₂O
MW: 144.21 g/mol

ZX-036956

N-Nitrosopyrrolidine

CAS: 930-55-2
Formula: C₄H₈N₂O
MW: 100.12 g/mol

ZX-006195

N-Nitrosopyrrolidine D8

CAS: 1219802-09-1
Formula: C₄H₈N₂O
MW: 108.17 g/mol

ZX-036371

N-Nitrososarcosine

CAS: 13256-22-9
Formula: C₃H₆N₂O₃
MW: 118.09 g/mol

ZX-022411

N-Nitrosourea

CAS: 13010-20-3
Formula: CH₃N₃O₂
MW: 89.05 g/mol

ZX-036354

N-Octylpyridin-4-amine

CAS: 64690-19-3
Formula: C₁₃H₂₂N₂
MW: 206.33 g/mol

ZX-025997

N-Phenethylacetamide

CAS: 877-95-2
Formula: C₁₀H₁₃NO
MW: 163.22 g/mol

ZX-031289

N-Phenethylbenzamide

CAS: 3278-14-6
Formula: C₁₅H₁₅NO
MW: 225.28 g/mol

ZX-026985

N-Phenoxycarbonyl Paroxetine

CAS: 253768-88-6
Formula: C₂₆H₂₄FNO₅
MW: 449.5 g/mol

ZX-035943

N-Phenoxycarbonyl-L-valine

CAS: 126147-70-4
Formula: C₁₂H₁₅NO₄
MW: 237.25 g/mol

ZX-031379

N-Phenyldiethanolamine

CAS: 120-07-0
Formula: C₁₀H₁₅NO₂
MW: 181.23 g/mol

ZX-031354

N-Phenylglycyl Cefadroxil

CAS: 147103-95-5
Formula: C₂₄H₂₄N₄O₇S
MW: 512.5 g/mol

ZX-021089

N-Phenylpiperidin-4-amine

CAS: 23056-29-3
Formula: C₁₁H₁₆N₂
MW: 176.26 g/mol

ZX-047818

N-Piperacillinyl Ampicillin

CAS: 65772-67-0
Formula: C₃₉H₄₄N₈O₁₀S₂
MW: 848.9 g/mol

ZX-031875

N-Piperidin-3-ylacetamide

CAS: 5810-55-9
Formula: C₇H₁₄N₂O
MW: 142.2 g/mol

ZX-043871

N-Pivaloyl Amoxicillin

CAS: 1313237-94-3
Formula: C₂₁H₂₇N₃O₆S
MW: 449.5 g/mol

ZX-020624

N-Pivaly-Cefditoren Pivoxil

CAS: 878002-84-7
Formula: C₃₀H₃₆N₆O₈S₃
MW: 704.8 g/mol

ZX-028507

N-Propargyl-1-aminoindane

CAS: 1875-50-9
Formula: C₁₂H₁₃N
MW: 171.24 g/mol

ZX-042425

N-Propionyl Mesalazine

CAS: 93968-80-0
Formula: C₁₀H₁₁NO₄
MW: 209.2 g/mol

ZX-025543

N-Sulfamoylacrylimidamide

CAS: 95853-46-6
Formula: C₃H₇N₃O₂S
MW: 149.17 g/mol

ZX-029445

N-Sulphamyl-3-Chloro Propionamidine Hydrochloride

CAS: 106649-95-0
Formula: C₃H₉Cl₂N₃O₂S
MW: 222.09 g/mol

ZX-029441

N-tert-Butoxycarbonyl-4-anilinopiperidine

CAS: 125541-22-2
Formula: C₁₆H₂₄N₂O₂
MW: 276.37 g/mol

ZX-039483

N-Triphenylmethyl Irbesartan

CAS: 886999-35-5
Formula: C₄₄H₄₂N₆O
MW: 670.8 g/mol

ZX-029972

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