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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 81 of 836

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1,3-Bis(3-Chloropropyl)-1,3-dihydro-2H-benzo[d]imidazol-2-one

CAS: 142799-22-2
Formula: C₁₃H₁₆Cl₂N₂O
MW: 287.18 g/mol

ZX-029062

1,3-Bis(4-Isobutoxybenzyl)urea

CAS: 955997-87-2
Formula: C₂₃H₃₂N₂O₃
MW: 384.5 g/mol

ZX-022513

1,3-Bis(4-Nitrophenyl) Urea-d8

CAS: 1156508-87-0
Formula: C₁₃H₁₀N₄O₅
MW: 310.29 g/mol

ZX-034568

1,3-Bis[4-(2-methoxyethyl)phenoxy]-2-propanol

CAS: 230975-30-1
Formula: C₂₁H₂₈O₅
MW: 360.4 g/mol

ZX-025594

1,3-Di-(acetylamino)adamantane

CAS: 59940-35-1
Formula: C₁₄H₂₂N₂O₂
MW: 250.34 g/mol

ZX-027945

1,3-Dibenzylurea

CAS: 1466-67-7
Formula: C₁₅H₁₆N₂O
MW: 240.3 g/mol

ZX-025273

1,3-Dibromo-5,7-dimethyladamantane

CAS: 21912-23-2
Formula: C₁₂H₁₈Br₂
MW: 322.08 g/mol

ZX-026025

1,3-Dibromoadamantane

CAS: 876-53-9
Formula: C₁₀H₁₄Br₂
MW: 294.03 g/mol

ZX-032758

1,3-Dibromopropane D6

CAS: 120404-22-0
Formula: C₃H₆Br₂
MW: 207.92 g/mol

ZX-043225

1,3-Dichloro-2-propanol

CAS: 96-23-1
Formula: C₃H₆Cl₂O
MW: 128.98 g/mol

ZX-034143

1,3-Dichloro-2-propanol-d5

CAS: 1173020-20-6
Formula: C₃H₆Cl₂O
MW: 134.01 g/mol

ZX-043226

1,3-Dichloroacetone

CAS: 534-07-6
Formula: C₃H₄Cl₂O
MW: 126.97 g/mol

ZX-026071

1,3-Dichloropropene D4(cis/trans mixture)

CAS: 202656-23-3
Formula: C₃H₄Cl₂
MW: 114.99 g/mol

ZX-035881

1,3-Dicyclohexylbarbituric acid

CAS: 35824-91-0
Formula: C₁₆H₂₄N₂O₃
MW: 292.37 g/mol

ZX-028837

1,3-Diethyl 2-(2-chloro-5-nitrobenzoyl)propanedioate

CAS: 94088-68-3
Formula: C₁₄H₁₄ClNO₇
MW: 343.71 g/mol

ZX-027603

1,3-Difluorobenzene-d4

CAS: 1173022-08-6
Formula: C₆H₄F₂
MW: 118.12 g/mol

ZX-046794

1,3-Dihydro-1-[1-(1H-imidazol-1-ylcarbonyl)-4-piperidinyl]-2H-imidazo[4,5-b]pyridin-2-one

CAS: 1373116-06-3
Formula: C₁₅H₁₆N₆O₂
MW: 312.33 g/mol

ZX-022656

1,3-Dihydro-1-hydroxy-2,1-benzoxaborol-5-ol

CAS: 1187190-70-0
Formula: C₇H₇BO₃
MW: 149.94 g/mol

ZX-033242

1,3-Dihydroxyanthraquinone

CAS: 518-83-2
Formula: C₁₄H₈O₄
MW: 240.21 g/mol

ZX-031596

1,3-Dihydroxybenzene-d6

CAS: 70938-00-0
Formula: C₆H₆O₂
MW: 116.15 g/mol

ZX-046795

1,3-Dimethyl-1H-indazol-6-amine

CAS: 221681-92-1
Formula: C₉H₁₁N₃
MW: 161.2 g/mol

ZX-031752

1,3-Dimethyl-1H-pyrazole-4-sulfonamide

CAS: 88398-53-2
Formula: C₅H₉N₃O₂S
MW: 175.21 g/mol

ZX-032941

1,3-Dimethyl-6-nitro-1H-indazole

CAS: 1354224-47-7
Formula: C₉H₉N₃O₂
MW: 191.19 g/mol

ZX-026066

1,3-Dimethyladamantane

CAS: 702-79-4
Formula: C₁₂H₂₀
MW: 164.29 g/mol

ZX-022090

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