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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

2-Naphthyl impurity chemical structure

2-Naphthyl impurity

CAS: 654653-95-9
Formula: C₃₂H₃₁BrN₂O₂
MW: 555.5 g/mol

VQ-047534

Reference Standard

2-Nitro-1,3-benzenediamine chemical structure

2-Nitro-1,3-benzenediamine

CAS: 32114-57-1
Formula: C₆H₇N₃O₂
MW: 153.14 g/mol

VQ-048646

Reference Standard

2-Nitro-4-(propylthio)aniline chemical structure

2-Nitro-4-(propylthio)aniline

CAS: 54393-89-4
Formula: C₉H₁₂N₂O₂S
MW: 212.27 g/mol

VQ-021473

Reference Standard

2-Nitro-4-(trifluoromethyl)benzoic Acid chemical structure

2-Nitro-4-(trifluoromethyl)benzoic Acid

CAS: 320-94-5
Formula: C₈H₄F₃NO₄
MW: 235.12 g/mol

VQ-032188

Reference Standard

2-Nitro-4-(trifluoromethyl)benzonitrile chemical structure

2-Nitro-4-(trifluoromethyl)benzonitrile

CAS: 778-94-9
Formula: C₈H₃F₃N₂O₂
MW: 216.12 g/mol

VQ-032187

Reference Standard

2-Nitro-4-thiocyanatoaniline chemical structure

2-Nitro-4-thiocyanatoaniline

CAS: 54029-45-7
Formula: C₇H₅N₃O₂S
MW: 195.2 g/mol

VQ-021474

Reference Standard

2-Nitrobenzaldehyde Semicarbazone chemical structure

2-Nitrobenzaldehyde Semicarbazone

CAS: 16004-43-6
Formula: C₈H₈N₄O₃
MW: 208.17 g/mol

VQ-038974

Reference Standard

2-Nitrophenethylamine chemical structure

2-Nitrophenethylamine

CAS: 33100-15-1
Formula: C₈H₁₀N₂O₂
MW: 166.18 g/mol

VQ-032770

Reference Standard

2-Nitrophenyl Hydrazine chemical structure

2-Nitrophenyl Hydrazine

CAS: 3034-19-3
Formula: C₆H₇N₃O₂
MW: 153.14 g/mol

VQ-043651

Reference Standard

2-Nitrophenyl phenyl ether chemical structure

2-Nitrophenyl phenyl ether

CAS: 2216-12-8
Formula: C₁₂H₉NO₃
MW: 215.2 g/mol

VQ-038649

Reference Standard

2-Nitrophenyl Phenyl Sulfide chemical structure

2-Nitrophenyl Phenyl Sulfide

CAS: 4171-83-9
Formula: C₁₂H₉NO₂S
MW: 231.27 g/mol

VQ-027691

Reference Standard

2-Nonenedioic Acid chemical structure

2-Nonenedioic Acid

CAS: 72461-80-4
Formula: C₉H₁₄O₄
MW: 186.2 g/mol

VQ-021696

Reference Standard

2-Nor Bimatoprost chemical structure

2-Nor Bimatoprost

CAS: 1356251-65-4
Formula: C₂₄H₃₅NO₄
MW: 401.5 g/mol

VQ-024595

Reference Standard

2-NP-AHD chemical structure

CAS: 623145-57-3
Formula: C₁₀H₈N₄O₄
MW: 248.19 g/mol

VQ-040708

Reference Standard

2-O-Ethyl-L-ascorbic Acid chemical structure

2-O-Ethyl-L-ascorbic Acid

CAS: 112894-37-8
Formula: C₈H₁₂O₆
MW: 204.18 g/mol

VQ-032826

Reference Standard

2-Oxa-1,4-butanediol diacetate chemical structure

2-Oxa-1,4-butanediol diacetate

CAS: 59278-00-1
Formula: C₇H₁₂O₅
MW: 176.17 g/mol

VQ-024137

Reference Standard

2-Oxazolidinone, 5-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-, (5R) chemical structure

2-Oxazolidinone, 5-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-, (5R)

CAS: 452339-73-0
Formula: C₁₃H₁₅NO₄
MW: 249.26 g/mol

VQ-028693

Reference Standard

2-Oxo Clopidogrel (Mixture of Diastereomers) chemical structure

2-Oxo Clopidogrel (Mixture of Diastereomers)

CAS: 109904-27-0
Formula: C₁₆H₁₆ClNO₃S
MW: 337.8 g/mol

VQ-043495

Reference Standard

2-Oxo Ifosfamide chemical structure

2-Oxo Ifosfamide

CAS: 119670-13-2
Formula: C₇H₁₃Cl₂N₂O₃P
MW: 275.07 g/mol

VQ-022824

Reference Standard

2-Oxo R-Clopidogrel chemical structure

2-Oxo R-Clopidogrel

CAS: 1360923-54-1
Formula: C₁₆H₁₆ClNO₃S
MW: 337.8 g/mol

VQ-029898

Reference Standard

2-Oxo-2-[[4-(trifluoromethyl)phenyl]amino]acetic Acid chemical structure

2-Oxo-2-[[4-(trifluoromethyl)phenyl]amino]acetic Acid

CAS: 69066-42-8
Formula: C₉H₆F₃NO₃
MW: 233.14 g/mol

VQ-026386

Reference Standard

2-Oxo-5,6-diphenyl-1,2,3,6-tetrahydropyrimidine-4-carboxylic Acid chemical structure

2-Oxo-5,6-diphenyl-1,2,3,6-tetrahydropyrimidine-4-carboxylic Acid

CAS: 594823-51-5
Formula: C₁₇H₁₄N₂O₃
MW: 294.3 g/mol

VQ-035497

Reference Standard

2-Oxo-Ivabradine chemical structure

2-Oxo-Ivabradine

CAS: 1616710-52-1
Formula: C₂₇H₃₄N₂O₆
MW: 482.6 g/mol

VQ-026265

Reference Standard

2-Oxo-ivabradine Hydrochloride chemical structure

2-Oxo-ivabradine Hydrochloride

CAS: 1616710-50-9
Formula: C₂₇H₃₅ClN₂O₆
MW: 519 g/mol

VQ-022892

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