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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

Adefovir Dipivoxil chemical structure

Adefovir Dipivoxil

CAS: 142340-99-6
Formula: C₂₀H₃₂N₅O₈P
MW: 501.5 g/mol

VQ-020743

Reference Standard

Adefovir Dipivoxil Dimer chemical structure

Adefovir Dipivoxil Dimer

CAS: 323201-05-4
Formula: C₄₁H₆₄N₁₀O₁₆P₂
MW: 1015 g/mol

VQ-043483

Reference Standard

Adefovir Dipivoxil N6-Hydroxy methyl impurity chemical structure

Adefovir Dipivoxil N6-Hydroxy methyl impurity

CAS: 323201-04-3
Formula: C₂₁H₃₄N₅O₉P
MW: 531.5 g/mol

VQ-028880

Reference Standard

Adefovir Monopivoxil chemical structure

Adefovir Monopivoxil

CAS: 142341-05-7
Formula: C₁₄H₂₂N₅O₆P
MW: 387.33 g/mol

VQ-024141

Reference Standard

Adefovir Pivalamido Impurity chemical structure

Adefovir Pivalamido Impurity

CAS: 1215101-40-8
Formula: C₂₅H₄₀N₅O₉P
MW: 585.6 g/mol

VQ-045391

Reference Standard

Adenine Hydrochloride chemical structure

Adenine Hydrochloride

CAS: 2922-28-3
Formula: C₅H₆ClN₅
MW: 171.59 g/mol

VQ-029032

Reference Standard

Adenosine 5'-Triphosphate chemical structure

Adenosine 5'-Triphosphate

CAS: 56-65-5
Formula: C₁₀H₁₆N₅O₁₃P₃
MW: 507.18 g/mol

VQ-035613

Reference Standard

Adenosine Impurity 1

Adenosine Impurity 1

CAS: 10527-91-0
Formula: C₉H₉N₅O₂
MW: 219.2 g/mol

VQ-029035

Reference Standard

Adenosine Impurity 13 chemical structure

Adenosine Impurity 13

CAS: 256224-01-8
Formula: C₅₀H₅₈N₇O₉P
MW: 932 g/mol

VQ-044937

Reference Standard

Adenosine Impurity 15 chemical structure

Adenosine Impurity 15

CAS: 1558023-78-1
Formula: C₄₃H₅₄N₇O₈P
MW: 827.9 g/mol

VQ-044939

Reference Standard

Adenosine Impurity 17 chemical structure

Adenosine Impurity 17

CAS: 3025999-68-9
Formula: C₅₀H₅₈N₇O₉P
MW: 932 g/mol

VQ-044938

Reference Standard

Adenosine Impurity 8 chemical structure

Adenosine Impurity 8

CAS: 3036300-28-1
Formula: C₅₁H₆₀N₇O₈P
MW: 930 g/mol

VQ-044936

Reference Standard

Aderbasib chemical structure

CAS: 791828-58-5
Formula: C₂₁H₂₈N₄O₅
MW: 416.5 g/mol

VQ-034771

Reference Standard

Adipoyl Disalicylate chemical structure

Adipoyl Disalicylate

CAS: 69638-07-9
Formula: C₂₀H₁₈O₈
MW: 386.4 g/mol

VQ-047312

Reference Standard

Adipyl-7-ADCA chemical structure

CAS: 80154-48-9
Formula: C₁₄H₁₈N₂O₆S
MW: 342.37 g/mol

VQ-022125

Reference Standard

Adrenalin Impurity 4 chemical structure

Adrenalin Impurity 4

CAS: 857565-22-1
Formula: C₉H₁₂ClNO₃
MW: 217.65 g/mol

VQ-035407

Reference Standard

Adrenalin Impurity 5 chemical structure

Adrenalin Impurity 5

CAS: 29705-82-6
Formula: C₉H₁₂ClNO₃
MW: 217.65 g/mol

VQ-035408

Reference Standard

Adrenaline-quinone

Adrenaline-quinone

CAS: 62358-01-4
Formula: C₉H₁₁NO₃
MW: 181.19 g/mol

VQ-029043

Reference Standard

Adrenalone chemical structure

CAS: 99-45-6
Formula: C₉H₁₁NO₃
MW: 181.19 g/mol

VQ-021439

Reference Standard

Aescin IA chemical structure

CAS: 123748-68-5
Formula: C₅₅H₈₆O₂₄
MW: 1131.3 g/mol

VQ-030546

Reference Standard

Aescin IB chemical structure

CAS: 26339-90-2
Formula: C₅₅H₈₆O₂₄
MW: 1131.3 g/mol

VQ-030548

Reference Standard

Afacifenacin chemical structure

CAS: 877606-63-8
Formula: C₂₇H₂₆F₃N₃O₂
MW: 481.5 g/mol

VQ-043519

Reference Standard

Afatinib 3,4-dichlorophenyl Amine Impurity chemical structure

Afatinib 3,4-dichlorophenyl Amine Impurity

CAS: 2044709-79-5
Formula: C₁₈H₁₆Cl₂N₄O₂
MW: 391.2 g/mol

VQ-035328

Reference Standard

Afatinib Bis-dimethylamino Impurity chemical structure

Afatinib Bis-dimethylamino Impurity

CAS: 2414260-31-2
Formula: C₂₆H₃₂ClFN₆O₃
MW: 531 g/mol

VQ-035346

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