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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-(Methylamino)pyridin-3-yl)methyl 2-((tert-butoxycarbonyl)(methyl)amino)acetate chemical structure

(2-(Methylamino)pyridin-3-yl)methyl 2-((tert-butoxycarbonyl)(methyl)amino)acetate

CAS: 1180002-01-0
Formula: C₁₅H₂₃N₃O₄
MW: 309.36 g/mol

VQ-031196

Reference Standard

(2-(Methylamino)pyridin-3-yl)methyl methylglycinate chemical structure

(2-(Methylamino)pyridin-3-yl)methyl methylglycinate

CAS: 2732924-98-8
Formula: C₁₀H₁₅N₃O₂
MW: 209.24 g/mol

VQ-031246

Reference Standard

(2-(Methylamino)pyridin-3-yl)methyl methylglycinate Dihydrochloride chemical structure

(2-(Methylamino)pyridin-3-yl)methyl methylglycinate Dihydrochloride

CAS: 2732924-99-9
Formula: C₁₀H₁₇Cl₂N₃O₂
MW: 282.16 g/mol

VQ-037744

Reference Standard

(2-Acetoxy-5-nitro-2,5-dihydrofuran-2-yl)methylene Diacetate chemical structure

(2-Acetoxy-5-nitro-2,5-dihydrofuran-2-yl)methylene Diacetate

CAS: 5904-70-1
Formula: C₁₁H₁₃NO₉
MW: 303.22 g/mol

VQ-023254

Reference Standard

(2-Amino-3-methylphenyl)(4-bromophenyl)methanone chemical structure

(2-Amino-3-methylphenyl)(4-bromophenyl)methanone

CAS: 71969-36-3
Formula: C₁₄H₁₂BrNO
MW: 290.15 g/mol

VQ-024663

Reference Standard

(2-Amino-5-chlorophenyl)(phenyl)methanone oxime chemical structure

(2-Amino-5-chlorophenyl)(phenyl)methanone oxime

CAS: 18097-52-4
Formula: C₁₃H₁₁ClN₂O
MW: 246.69 g/mol

VQ-036149

Reference Standard

(2-Amino-5,6-dichloroquinazolin-3(4H)-yl)acetic Acid chemical structure

(2-Amino-5,6-dichloroquinazolin-3(4H)-yl)acetic Acid

CAS: 1159977-03-3
Formula: C₁₀H₉Cl₂N₃O₂
MW: 274.1 g/mol

VQ-020808

Reference Standard

(2-Aminophenyl)(2-bromophenyl)methanone chemical structure

(2-Aminophenyl)(2-bromophenyl)methanone

CAS: 845276-75-7
Formula: C₁₃H₁₀BrNO
MW: 276.13 g/mol

VQ-035166

Reference Standard

(2-Aminophenyl)(3-bromophenyl)methanone chemical structure

(2-Aminophenyl)(3-bromophenyl)methanone

CAS: 136266-79-0
Formula: C₁₃H₁₀BrNO
MW: 276.13 g/mol

VQ-044045

Reference Standard

(2-Aminopteridin-6-yl)methanol chemical structure

(2-Aminopteridin-6-yl)methanol

CAS: 142645-42-9
Formula: C₇H₇N₅O
MW: 177.16 g/mol

VQ-038366

Reference Standard

(2-Aminothiazol-4-yl)methyl carbamimidothioate chemical structure

(2-Aminothiazol-4-yl)methyl carbamimidothioate

CAS: 20166-91-0
Formula: C₅H₈N₄S₂
MW: 188.3 g/mol

VQ-037197

Reference Standard

(2-Bromo-3-fluorophenyl)methanol chemical structure

(2-Bromo-3-fluorophenyl)methanol

CAS: 1184915-45-4
Formula: C₇H₆BrFO
MW: 205.02 g/mol

VQ-034062

Reference Standard

(2-Bromo-4,6-ditert-butyl-3-nitrophenyl) methyl carbonate chemical structure

(2-Bromo-4,6-ditert-butyl-3-nitrophenyl) methyl carbonate

CAS: 1623021-42-0
Formula: C₁₆H₂₂BrNO₅
MW: 388.25 g/mol

VQ-031341

Reference Standard

(2-Bromo-5-fluorophenyl)methanol chemical structure

(2-Bromo-5-fluorophenyl)methanol

CAS: 202865-66-5
Formula: C₇H₆BrFO
MW: 205.02 g/mol

VQ-028211

Reference Standard

(2-Butyl-5-nitrobenzofuran-3-yl)(4-(3-(dibutylamino)propoxy)phenyl)methanone chemical structure

(2-Butyl-5-nitrobenzofuran-3-yl)(4-(3-(dibutylamino)propoxy)phenyl)methanone

CAS: 141645-23-0
Formula: C₃₀H₄₀N₂O₅
MW: 508.6 g/mol

VQ-030318

Reference Standard

(2-Butylbenzofuran-3-yl)(3,5-diiodo-4-methoxyphenyl)methanone chemical structure

(2-Butylbenzofuran-3-yl)(3,5-diiodo-4-methoxyphenyl)methanone

CAS: 149702-94-3
Formula: C₂₀H₁₈I₂O₃
MW: 560.2 g/mol

VQ-035691

Reference Standard

(2-Butylbenzofuran-6-yl)(4-methoxyphenyl)methanone chemical structure

(2-Butylbenzofuran-6-yl)(4-methoxyphenyl)methanone

CAS: 171860-06-3
Formula: C₂₀H₂₀O₃
MW: 308.4 g/mol

VQ-035690

Reference Standard

(2-Chloro-5-iodophenyl)(4-(((S)-tetrahydrofuran-3-yl)oxy)phenyl)methanol chemical structure

(2-Chloro-5-iodophenyl)(4-(((S)-tetrahydrofuran-3-yl)oxy)phenyl)methanol

CAS: 1800196-46-6
Formula: C₁₇H₁₆ClIO₃
MW: 430.7 g/mol

VQ-025527

Reference Standard

(2-Chloro-5-iodophenyl)(4-fluorophenyl)methanone chemical structure

(2-Chloro-5-iodophenyl)(4-fluorophenyl)methanone

CAS: 915095-86-2
Formula: C₁₃H₇ClFIO
MW: 360.55 g/mol

VQ-030450

Reference Standard

(2-Chloro-5-iodophenyl)[4-[[(3S)-tetrahydro-3-furanyl]oxy]phenyl]methanone chemical structure

(2-Chloro-5-iodophenyl)[4-[[(3S)-tetrahydro-3-furanyl]oxy]phenyl]methanone

CAS: 915095-87-3
Formula: C₁₇H₁₄ClIO₃
MW: 428.6 g/mol

VQ-025523

Reference Standard

(2-Chloro-phenyl)-oxo-acetonitrile chemical structure

(2-Chloro-phenyl)-oxo-acetonitrile

CAS: 35022-42-5
Formula: C₈H₄ClNO
MW: 165.57 g/mol

VQ-048781

Reference Standard

(2-Chlorophenyl)(p-tolyl)methanone chemical structure

(2-Chlorophenyl)(p-tolyl)methanone

CAS: 5953-00-4
Formula: C₁₄H₁₁ClO
MW: 230.69 g/mol

VQ-044596

Reference Standard

(2-Chlorophenyl)diphenylmethane chemical structure

(2-Chlorophenyl)diphenylmethane

CAS: 56153-60-7
Formula: C₁₉H₁₅Cl
MW: 278.8 g/mol

VQ-036425

Reference Standard

(2-Ethoxyphenoxy)acetic acid chemical structure

(2-Ethoxyphenoxy)acetic acid

CAS: 3251-30-7
Formula: C₁₀H₁₂O₄
MW: 196.2 g/mol

VQ-034041

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