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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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Reference Standard

De(methypiperazinyl) Sildenafil Dimer Impurity chemical structure

De(methypiperazinyl) Sildenafil Dimer Impurity

CAS: 1346603-48-2
Formula: C₃₄H₃₈N₈O₆S
MW: 686.8 g/mol

VQ-042163

Reference Standard

Deacetamide Linezolid Azide chemical structure

Deacetamide Linezolid Azide

CAS: 168828-84-0
Formula: C₁₄H₁₆FN₅O₃
MW: 321.31 g/mol

VQ-026491

Reference Standard

Deacetoxycephalosporin C chemical structure

Deacetoxycephalosporin C

CAS: 26924-74-3
Formula: C₁₄H₁₉N₃O₆S
MW: 357.38 g/mol

VQ-024892

Reference Standard

Deacetyl (R)-Linezolid chemical structure

Deacetyl (R)-Linezolid

CAS: 912359-80-9
Formula: C₁₄H₁₈FN₃O₃
MW: 295.31 g/mol

VQ-038076

Reference Standard

Deacetyl Palbociclib-9A (Boc) Impurity chemical structure

Deacetyl Palbociclib-9A (Boc) Impurity

CAS: 571189-65-6
Formula: C₂₇H₃₅N₇O₃
MW: 505.6 g/mol

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Reference Standard

Deacetyl Vinorelbine chemical structure

Deacetyl Vinorelbine

CAS: 126347-74-8
Formula: C₄₃H₅₂N₄O₇
MW: 736.9 g/mol

VQ-034643

Reference Standard

Debenzoic Acid Bromotelmisartan chemical structure

Debenzoic Acid Bromotelmisartan

CAS: 1004548-55-3
Formula: C₂₆H₂₅BrN₄
MW: 473.4 g/mol

VQ-043689

Reference Standard

Decamethyl-1,9-Pentasiloxanediol chemical structure

Decamethyl-1,9-Pentasiloxanediol

CAS: 7445-36-5
Formula: C₁₀H₃₂O₆Si₅
MW: 388.78 g/mol

VQ-033860

Reference Standard

Decarboxy Balsalazide chemical structure

Decarboxy Balsalazide

CAS: 1242567-10-7
Formula: C₁₆H₁₅N₃O₄
MW: 313.31 g/mol

VQ-045481

Reference Standard

Decarboxy Moxifloxacin chemical structure

Decarboxy Moxifloxacin

CAS: 1322062-57-6
Formula: C₂₀H₂₄FN₃O₂
MW: 357.4 g/mol

VQ-026782

Reference Standard

Decarboxylated S-Adenosylmethionine Sulfate chemical structure

Decarboxylated S-Adenosylmethionine Sulfate

CAS: 67380-81-8
Formula: C₁₄H₂₆N₆O₁₁S₃
MW: 550.6 g/mol

VQ-037831

Reference Standard

Decarboxymethyl Oleuropein Aglycon chemical structure

Decarboxymethyl Oleuropein Aglycon

CAS: 171552-33-3
Formula: C₁₇H₂₀O₆
MW: 320.3 g/mol

VQ-040267

Reference Standard

Dechloro Chlonixin chemical structure

Dechloro Chlonixin

CAS: 17782-05-7
Formula: C₁₃H₁₂N₂O₂
MW: 228.25 g/mol

VQ-023015

Reference Standard

Decitabine Alpha Isomer Impurity chemical structure

Decitabine Alpha Isomer Impurity

CAS: 22432-95-7
Formula: C₈H₁₂N₄O₄
MW: 228.21 g/mol

VQ-030093

Reference Standard

Decitabine Deformyl Impurity chemical structure

Decitabine Deformyl Impurity

CAS: 69304-65-0
Formula: C₇H₁₄N₄O₄
MW: 218.21 g/mol

VQ-036596

Reference Standard

Decitabine Deformyl Impurity(Mixture Of Diastereomers) chemical structure

Decitabine Deformyl Impurity(Mixture Of Diastereomers)

CAS: 570410-72-9
Formula: C₇H₁₄N₄O₄
MW: 218.21 g/mol

VQ-025215

Reference Standard

Decitabine Di-Toluoyl Impurity chemical structure

Decitabine Di-Toluoyl Impurity

CAS: 10302-79-1
Formula: C₂₄H₂₄N₄O₆
MW: 464.5 g/mol

VQ-030094

Reference Standard

Decitabine Impurity (Ring-Opening) chemical structure

Decitabine Impurity (Ring-Opening)

CAS: 69304-64-9
Formula: C₈H₁₄N₄O₅
MW: 246.22 g/mol

VQ-030099

Reference Standard

Decitabine Impurity 2 (beta-Isomer) chemical structure

Decitabine Impurity 2 (beta-Isomer)

CAS: 78185-65-6
Formula: C₂₂H₂₄O₆
MW: 384.4 g/mol

VQ-025219

Reference Standard

Decitabine Impurity 2(alpha Isomer) chemical structure

Decitabine Impurity 2(alpha Isomer)

CAS: 78185-64-5
Formula: C₂₂H₂₄O₆
MW: 384.4 g/mol

VQ-036593

Reference Standard

Decitabine Related Compound B chemical structure

Decitabine Related Compound B

CAS: 1034301-08-0
Formula: C₂₂H₁₈Cl₂N₄O₆
MW: 505.3 g/mol

VQ-022320

Reference Standard

Decloxizine Dihydrochloride chemical structure

Decloxizine Dihydrochloride

CAS: 13073-96-6
Formula: C₂₁H₃₀Cl₂N₂O₂
MW: 413.4 g/mol

VQ-026088

Reference Standard

Decloxizine Hydrochloride chemical structure

Decloxizine Hydrochloride

CAS: 1263283-80-2
Formula: C₂₁H₂₉ClN₂O₂
MW: 376.9 g/mol

VQ-037607

Reference Standard

Decyl Aminoquat Hydrobromide chemical structure

Decyl Aminoquat Hydrobromide

CAS: 2247938-20-9
Formula: C₁₉H₄₄Br₂N₂
MW: 460.4 g/mol

VQ-029927

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