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Impurities & Reference Standards

Pharmacopoeial and non-pharmacopoeial impurities, metabolites, nitrosamines and working standards with characterisation data for QC and regulatory work.

28,554products

6sub-categories

2,746in stock

COA + SDSwith every lot

API Impurities 14,252 Pharmacopeial Impurities (EP / USP / BP) 4,401 Nitrosamine Impurities 650 Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,612 Metabolites & Degradation Products 4,146 API Reference Standards 3,493

Reference Standard

Demethyloleuropein Aglycone

Demethyloleuropein Aglycone

CAS: 113145-68-9
Formula: C₁₈H₂₀O₈
MW: 364.35 g/mol

VQ-040266

Reference Standard

Demethylpiperazinyl Desethyl Sildenafil Sulfonyl Chloride chemical structure

Demethylpiperazinyl Desethyl Sildenafil Sulfonyl Chloride

CAS: 139756-27-7
Formula: C₁₅H₁₅ClN₄O₄S
MW: 382.8 g/mol

VQ-043587

Reference Standard

Denaverine Hydrochloride chemical structure

Denaverine Hydrochloride

CAS: 3321-06-0
Formula: C₂₄H₃₄ClNO₃
MW: 420 g/mol

VQ-030120

Reference Standard

Denitro Tolcapone chemical structure

Denitro Tolcapone

CAS: 1391053-03-4
Formula: C₁₄H₁₂O₃
MW: 228.24 g/mol

VQ-028432

Reference Standard

Denosumab

CAS: 615258-40-7
Formula: C₂₈₃H₄₆₁N₈₅O₈₅S
MW: 6446.4 g/mol

VQ-047987

Reference Standard

Deoxy Artemisinin chemical structure

Deoxy Artemisinin

CAS: 72826-63-2
Formula: C₁₅H₂₂O₄
MW: 266.33 g/mol

VQ-024366

Reference Standard

Deoxy Bosentan Impurity chemical structure

Deoxy Bosentan Impurity

CAS: 157415-45-7
Formula: C₂₇H₂₉N₅O₅S
MW: 535.6 g/mol

In stock

Reference Standard

Deoxy Donepezil Hydrochloride chemical structure

Deoxy Donepezil Hydrochloride

CAS: 1034439-57-0
Formula: C₂₄H₃₂ClNO₂
MW: 402 g/mol

VQ-030274

Reference Standard

Deoxy Epinephrine Hydrochloride chemical structure

Deoxy Epinephrine Hydrochloride

CAS: 62-32-8
Formula: C₉H₁₄ClNO₂
MW: 203.66 g/mol

VQ-021436

Reference Standard

Deoxy Fesoterodine chemical structure

Deoxy Fesoterodine

CAS: 895137-81-2
Formula: C₂₆H₃₇NO₂
MW: 395.6 g/mol

VQ-037240

Reference Standard

Deoxy Micafungin Impurity chemical structure

Deoxy Micafungin Impurity

CAS: 1392514-06-5
Formula: C₅₆H₇₀N₉NaO₂₂S
MW: 1276.3 g/mol

VQ-026680

Reference Standard

Deoxybenzoin Oxime chemical structure

Deoxybenzoin Oxime

CAS: 26306-06-9
Formula: C₁₄H₁₃NO
MW: 211.26 g/mol

VQ-033067

Reference Standard

Deoxycholic-2,2,4,4-d4 Acid chemical structure

Deoxycholic-2,2,4,4-d4 Acid

CAS: 112076-61-6
Formula: C₂₄H₄₀O₄
MW: 396.6 g/mol

VQ-036614

Reference Standard

Deoxydihydroartemisinin chemical structure

Deoxydihydroartemisinin

CAS: 72807-92-2
Formula: C₁₅H₂₄O₄
MW: 268.35 g/mol

VQ-024365

Reference Standard

Deoxyepinephrine chemical structure

Deoxyepinephrine

CAS: 501-15-5
Formula: C₉H₁₃NO₂
MW: 167.2 g/mol

VQ-029040

Reference Standard

Deoxymannojirimycin chemical structure

Deoxymannojirimycin

CAS: 84444-90-6
Formula: C₆H₁₃NO₄
MW: 163.17 g/mol

VQ-045304

Reference Standard

Deoxynivalenol chemical structure

CAS: 51481-10-8
Formula: C₁₅H₂₀O₆
MW: 296.31 g/mol

VQ-032381

Reference Standard

Deoxynivalenol 3-glucoside chemical structure

Deoxynivalenol 3-glucoside

CAS: 131180-21-7
Formula: C₂₁H₃₀O₁₁
MW: 458.5 g/mol

VQ-044031

Reference Standard

Deoxynivalenol 3-Glucuronide chemical structure

Deoxynivalenol 3-Glucuronide

CAS: 1000000-13-4
Formula: C₂₁H₂₈O₁₂
MW: 472.4 g/mol

VQ-043687

Reference Standard

Deoxynojirimycin Hydrochloride chemical structure

Deoxynojirimycin Hydrochloride

CAS: 73285-50-4
Formula: C₆H₁₄ClNO₄
MW: 199.63 g/mol

VQ-049112

Reference Standard

Deoxyprednisolone-16-ene chemical structure

Deoxyprednisolone-16-ene

CAS: 3103-17-1
Formula: C₂₁H₂₆O₄
MW: 342.4 g/mol

VQ-021910

Reference Standard

Deoxysepiapterin chemical structure

Deoxysepiapterin

CAS: 1797-87-1
Formula: C₉H₁₁N₅O₂
MW: 221.22 g/mol

VQ-023740

Reference Standard

Deoxystreptamine chemical structure

Deoxystreptamine

CAS: 2037-48-1
Formula: C₆H₁₄N₂O₃
MW: 162.19 g/mol

VQ-025983

Reference Standard

Deoxystreptamine Kanosaminide chemical structure

Deoxystreptamine Kanosaminide

CAS: 20744-51-8
Formula: C₁₂H₂₅N₃O₇
MW: 323.34 g/mol

VQ-028413

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