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Impurities & Reference Standards

API Impurities

Source 1942 api impurities for research, QC and production, documented with COA and SDS.

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1,516in stock

COA + SDSwith every lot

Reference Standard

Diazoxon chemical structure

CAS: 962-58-3
Formula: C₁₂H₂₁N₂O₄P
MW: 288.28 g/mol

VQ-036665

Reference Standard

Dibaclofen Urea chemical structure

Dibaclofen Urea

CAS: 2726264-10-2
Formula: C₂₁H₂₂Cl₂N₂O₅
MW: 453.3 g/mol

VQ-024485

Reference Standard

Dibenz[a,h]anthracene chemical structure

Dibenz[a,h]anthracene

CAS: 53-70-3
Formula: C₂₂H₁₄
MW: 278.3 g/mol

VQ-038847

Reference Standard

Dibenzhydryl Disulfide chemical structure

Dibenzhydryl Disulfide

CAS: 1726-02-9
Formula: C₂₆H₂₂S₂
MW: 398.6 g/mol

VQ-043230

Reference Standard

Dibenzo[b,e]oxepine-6,11-dione chemical structure

Dibenzo[b,e]oxepine-6,11-dione

CAS: 15128-50-4
Formula: C₁₄H₈O₃
MW: 224.21 g/mol

VQ-038754

Reference Standard

Dibenzo[b,f][1,4]thiazepin-11(10H)-one, 5-oxide chemical structure

Dibenzo[b,f][1,4]thiazepin-11(10H)-one, 5-oxide

CAS: 20290-48-6
Formula: C₁₃H₉NO₂S
MW: 243.28 g/mol

VQ-027699

Reference Standard

Dibenzosuberenol chemical structure

Dibenzosuberenol

CAS: 10354-00-4
Formula: C₁₅H₁₂O
MW: 208.25 g/mol

VQ-025108

Reference Standard

Dibenzosuberenone chemical structure

Dibenzosuberenone

CAS: 2222-33-5
Formula: C₁₅H₁₀O
MW: 206.24 g/mol

VQ-022267

Reference Standard

Dibenzosuberone chemical structure

Dibenzosuberone

CAS: 1210-35-1
Formula: C₁₅H₁₂O
MW: 208.25 g/mol

VQ-022268

Reference Standard

Dibenzoyl Thiamine chemical structure

Dibenzoyl Thiamine

CAS: 299-88-7
Formula: C₂₆H₂₆N₄O₄S
MW: 490.6 g/mol

VQ-050290

Reference Standard

Dibenzyl Azodicarboxylate chemical structure

Dibenzyl Azodicarboxylate

CAS: 2449-05-0
Formula: C₁₆H₁₄N₂O₄
MW: 298.29 g/mol

VQ-043995

Reference Standard

Dibenzylamine hydrochloride chemical structure

Dibenzylamine hydrochloride

CAS: 20455-68-9
Formula: C₁₄H₁₆ClN
MW: 233.73 g/mol

VQ-032203

Reference Standard

Dibucaine Hydrochloride chemical structure

Dibucaine Hydrochloride

CAS: 61-12-1
Formula: C₂₀H₃₀ClN₃O₂
MW: 379.9 g/mol

VQ-024984

Reference Standard

Dichloro Diazoxide Impurity chemical structure

Dichloro Diazoxide Impurity

CAS: 16948-63-3
Formula: C₆H₆Cl₂N₂O₂S
MW: 241.09 g/mol

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Reference Standard

Dichloro(1,2-diaminocyclohexane)platinum(II) chemical structure

Dichloro(1,2-diaminocyclohexane)platinum(II)

CAS: 52691-24-4
Formula: C₆H₁₄Cl₂N₂Pt
MW: 380.18 g/mol

VQ-036155

Reference Standard

Dichlorodehydroabietic Acid chemical structure

Dichlorodehydroabietic Acid

CAS: 57055-39-7
Formula: C₂₀H₂₆Cl₂O₂
MW: 369.3 g/mol

VQ-043481

Reference Standard

Diclofenac 2,5-Quinone Imine chemical structure

Diclofenac 2,5-Quinone Imine

CAS: 1254576-93-6
Formula: C₁₄H₉Cl₂NO₃
MW: 310.1 g/mol

VQ-030176

Reference Standard

Diclofenac 4-Bromo Analog chemical structure

Diclofenac 4-Bromo Analog

CAS: 2512211-75-3
Formula: C₁₄H₁₁BrClNO₂
MW: 340.6 g/mol

VQ-044075

Reference Standard

Diclofenac Chloroacetyl Impurity chemical structure

Diclofenac Chloroacetyl Impurity

CAS: 15308-01-7
Formula: C₁₄H₁₀Cl₃NO
MW: 314.6 g/mol

VQ-022373

Reference Standard

Diclofenac diethylamine chemical structure

Diclofenac diethylamine

CAS: 78213-16-8
Formula: C₁₈H₂₂Cl₂N₂O₂
MW: 369.3 g/mol

VQ-025292

Reference Standard

Diclofenac Dimer Impurity chemical structure

Diclofenac Dimer Impurity

CAS: 1609187-30-5
Formula: C₂₈H₂₀Cl₄N₂O₄
MW: 590.3 g/mol

VQ-025294

Reference Standard

Diclofenac Dimer Impurity chemical structure

Diclofenac Dimer Impurity

CAS: 1609187-32-7
Formula: C₂₈H₂₀Cl₄N₂O₄
MW: 590.3 g/mol

VQ-025299

Reference Standard

Diclofenac Glyceryl Adduct chemical structure

Diclofenac Glyceryl Adduct

CAS: 221016-39-3
Formula: C₁₇H₁₇Cl₂NO₄
MW: 370.2 g/mol

VQ-025296

Reference Standard

Diclofenac Impurity 31 chemical structure

Diclofenac Impurity 31

CAS: 575-90-6
Formula: C₈H₆Cl₂O₃
MW: 221.03 g/mol

VQ-036675

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