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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

Aripiprazole Isomer chemical structure

Aripiprazole Isomer

CAS: 203395-78-2
Formula: C₂₃H₂₇Cl₂N₃O₂
MW: 448.4 g/mol

VQ-020827

Reference Standard

Aripiprazole Lauroxil chemical structure

Aripiprazole Lauroxil

CAS: 1259305-29-7
Formula: C₃₆H₅₁Cl₂N₃O₄
MW: 660.7 g/mol

VQ-035789

Reference Standard

Aripiprazole Methoxybutoxyquinoline Impurity chemical structure

Aripiprazole Methoxybutoxyquinoline Impurity

CAS: 1770391-64-4
Formula: C₁₄H₁₉NO₃
MW: 249.3 g/mol

VQ-024091

Reference Standard

Aripiprazole N-Dimer chemical structure

Aripiprazole N-Dimer

CAS: 1352492-04-6
Formula: C₃₇H₄₅Cl₄N₅O₂
MW: 733.6 g/mol

In stock

Reference Standard

Aripiprazole Related Compound B chemical structure

Aripiprazole Related Compound B

CAS: 1424858-02-5
Formula: C₂₆H₃₂N₂O₅
MW: 452.5 g/mol

VQ-020818

Reference Standard

Arjungenin chemical structure

CAS: 58880-25-4
Formula: C₃₀H₄₈O₆
MW: 504.7 g/mol

VQ-039469

Reference Standard

Aromadendrin chemical structure

CAS: 480-20-6
Formula: C₁₅H₁₂O₆
MW: 288.25 g/mol

VQ-032477

Reference Standard

Arteannuin H chemical structure

CAS: 207446-83-1
Formula: C₁₅H₂₂O₃
MW: 250.33 g/mol

VQ-043787

Reference Standard

Artemether Tetrahydrofuran Acetate chemical structure

Artemether Tetrahydrofuran Acetate

CAS: 181528-64-3
Formula: C₁₆H₂₆O₅
MW: 298.37 g/mol

VQ-020835

Reference Standard

Artemisinic Acid Carbonate Impurity

Artemisinic Acid Carbonate Impurity

CAS: 1574328-06-5
Formula: C₁₈H₂₈O₄
MW: 308.42 g/mol

VQ-044332

Reference Standard

Artemisinic Alcohol chemical structure

Artemisinic Alcohol

CAS: 125184-95-4
Formula: C₁₅H₂₄O
MW: 220.35 g/mol

VQ-034975

Reference Standard

Artemisinic Aldehyde chemical structure

Artemisinic Aldehyde

CAS: 125276-60-0
Formula: C₁₅H₂₂O
MW: 218.33 g/mol

VQ-028865

Reference Standard

Artemisininic Acid chemical structure

Artemisininic Acid

CAS: 80286-58-4
Formula: C₁₅H₂₂O₂
MW: 234.33 g/mol

VQ-043051

Reference Standard

Artemisitene chemical structure

CAS: 101020-89-7
Formula: C₁₅H₂₀O₅
MW: 280.32 g/mol

VQ-021621

Reference Standard

Artesunate 10alpha,10beta-Succinate Dimer

Artesunate 10alpha,10beta-Succinate Dimer

CAS: 959120-02-6
Formula: C₃₄H₅₀O₁₂
MW: 650.75 g/mol

VQ-034784

Reference Standard

Artesunate Methyl Ester chemical structure

Artesunate Methyl Ester

CAS: 93787-88-3
Formula: C₂₀H₃₀O₈
MW: 398.4 g/mol

VQ-043963

Reference Standard

Asciminib Impurity 2 chemical structure

Asciminib Impurity 2

CAS: 1492954-67-2
Formula: C₂₅H₂₆ClF₂N₅O₄
MW: 534 g/mol

VQ-045284

Reference Standard

Asciminib Impurity 54

Asciminib Impurity 54

CAS: 2244881-24-9
Formula: C₇H₆ClF₂NO
MW: 193.58 g/mol

VQ-044810

Reference Standard

Asciminib Keto Impurity

Asciminib Keto Impurity

Formula: C₂₀H₁₆ClF₂N₅O₃
MW: 447.82 g/mol

In stock

Reference Standard

Asciminib S-Isomer chemical structure

Asciminib S-Isomer

CAS: 1492952-73-4
Formula: C₂₀H₁₈ClF₂N₅O₃
MW: 449.8 g/mol

VQ-035459

Reference Standard

Ascomycin chemical structure

CAS: 104987-12-4
Formula: C₄₃H₆₉NO₁₂
MW: 792 g/mol

VQ-028165

Reference Standard

Ascorbic Acid Impurity C chemical structure

Ascorbic Acid Impurity C

CAS: 526-98-7
Formula: C₆H₁₀O₇
MW: 194.14 g/mol

VQ-004444

Reference Standard

Ascorbyl Glucoside chemical structure

Ascorbyl Glucoside

CAS: 129499-78-1
Formula: C₁₂H₁₈O₁₁
MW: 338.26 g/mol

VQ-032679

Reference Standard

Ascorbyl Tetraisopalmitate chemical structure

Ascorbyl Tetraisopalmitate

CAS: 183476-82-6
Formula: C₇₀H₁₂₈O₁₀
MW: 1129.8 g/mol

VQ-039940

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