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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

(R)-3-((((S)-1-Amino-1-oxobutan-2-yl)amino)methyl)hexanoic Acid chemical structure

(R)-3-((((S)-1-Amino-1-oxobutan-2-yl)amino)methyl)hexanoic Acid

CAS: 2397556-18-0
Formula: C₁₁H₂₂N₂O₃
MW: 230.3 g/mol

VQ-024654

Reference Standard

(R)-3-((((S)-1-Carboxypropyl)amino)methyl)hexanoic acid chemical structure

(R)-3-((((S)-1-Carboxypropyl)amino)methyl)hexanoic acid

CAS: 2451181-70-5
Formula: C₁₁H₂₁NO₄
MW: 231.29 g/mol

VQ-036032

Reference Standard

(R)-3-((1-Methylpyrrolidin-2-yl)methyl)-1,5-bis(2-(phenylsulfonyl)ethyl)-1H-indole chemical structure

(R)-3-((1-Methylpyrrolidin-2-yl)methyl)-1,5-bis(2-(phenylsulfonyl)ethyl)-1H-indole

CAS: 1181222-90-1
Formula: C₂₉H₃₂N₂O₄S₂
MW: 536.7 g/mol

VQ-025505

Reference Standard

(R)-3-((6-(3-Aminopiperidin-1-yl)-3-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)methyl)benzonitrile chemical structure

(R)-3-((6-(3-Aminopiperidin-1-yl)-3-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)methyl)benzonitrile

CAS: 1339955-49-5
Formula: C₁₈H₂₁N₅O₂
MW: 339.4 g/mol

VQ-021509

Reference Standard

(R)-3-((tert-Butoxycarbonyl)amino)-2-(4-(((2,4-dimethylbenzoyl)oxy)methyl)phenyl)propanoic Acid chemical structure

(R)-3-((tert-Butoxycarbonyl)amino)-2-(4-(((2,4-dimethylbenzoyl)oxy)methyl)phenyl)propanoic Acid

CAS: 2098444-97-2
Formula: C₂₄H₂₉NO₆
MW: 427.5 g/mol

VQ-045061

Reference Standard

(R)-3-((tert-Butoxycarbonyl)amino)-4-(2,4-difluorophenyl)butanoic Acid chemical structure

(R)-3-((tert-Butoxycarbonyl)amino)-4-(2,4-difluorophenyl)butanoic Acid

CAS: 851307-12-5
Formula: C₁₅H₁₉F₂NO₄
MW: 315.31 g/mol

VQ-023766

Reference Standard

(R)-3-((tert-Butoxycarbonyl)amino)-4-(2,5-difluorophenyl)butanoic Acid chemical structure

(R)-3-((tert-Butoxycarbonyl)amino)-4-(2,5-difluorophenyl)butanoic Acid

CAS: 486459-98-7
Formula: C₁₅H₁₉F₂NO₄
MW: 315.31 g/mol

VQ-033876

Reference Standard

(R)-3-((tert-Butoxycarbonyl)amino)-4-(3,4-difluorophenyl)butanoic Acid chemical structure

(R)-3-((tert-Butoxycarbonyl)amino)-4-(3,4-difluorophenyl)butanoic Acid

CAS: 269396-59-0
Formula: C₁₅H₁₉F₂NO₄
MW: 315.31 g/mol

VQ-042198

Reference Standard

(R)-3-([1,1'-Biphenyl]-4-yl)-2-aminopropan-1-ol chemical structure

(R)-3-([1,1'-Biphenyl]-4-yl)-2-aminopropan-1-ol

CAS: 1426129-52-3
Formula: C₁₅H₁₇NO
MW: 227.3 g/mol

VQ-042070

Reference Standard

(R)-3-([1,1'-Biphenyl]-4-yl)-2-aminopropan-1-ol hydrochloride chemical structure

(R)-3-([1,1'-Biphenyl]-4-yl)-2-aminopropan-1-ol hydrochloride

CAS: 1573000-33-5
Formula: C₁₅H₁₈ClNO
MW: 263.76 g/mol

VQ-042060

Reference Standard

(R)-3-(1-(2-Chloro-3-fluorophenyl)ethoxy)-5-(1-(piperidin-4-yl)-1H-pyrazol-4-yl)pyridin-2-amine chemical structure

(R)-3-(1-(2-Chloro-3-fluorophenyl)ethoxy)-5-(1-(piperidin-4-yl)-1H-pyrazol-4-yl)pyridin-2-amine

CAS: 1801651-84-2
Formula: C₂₁H₂₃ClFN₅O
MW: 415.9 g/mol

VQ-045008

Reference Standard

(R)-3-(1-(2-Chloro-5-fluorophenyl)ethoxy)-5-(1-(piperidin-4-yl)-1H-pyrazol-4-yl)pyridin-2-amine

(R)-3-(1-(2-Chloro-5-fluorophenyl)ethoxy)-5-(1-(piperidin-4-yl)-1H-pyrazol-4-yl)pyridin-2-amine

CAS: 1558007-80-9
Formula: C₂₁H₂₃ClFN₅O
MW: 415.89 g/mol

VQ-047877

Reference Standard

(R)-3-(1-(2,6-Dichloro-3-fluorophenyl)ethoxy)-5-(1H-pyrazol-4-yl)pyridin-2-amine chemical structure

(R)-3-(1-(2,6-Dichloro-3-fluorophenyl)ethoxy)-5-(1H-pyrazol-4-yl)pyridin-2-amine

CAS: 3026867-46-6
Formula: C₁₆H₁₃Cl₂FN₄O
MW: 367.2 g/mol

VQ-025093

Reference Standard

(R)-3-(2-Methoxy-2-oxoethyl)-5-methylhexanoic acid chemical structure

(R)-3-(2-Methoxy-2-oxoethyl)-5-methylhexanoic acid

CAS: 156048-92-9
Formula: C₁₀H₁₈O₄
MW: 202.25 g/mol

VQ-041645

Reference Standard

(R)-3-(3-(Difluoromethyl)phenyl)-N-(1-(naphthalen-1-yl)ethyl)propan-1-amine hydrochloride chemical structure

(R)-3-(3-(Difluoromethyl)phenyl)-N-(1-(naphthalen-1-yl)ethyl)propan-1-amine hydrochloride

CAS: 2609807-97-6
Formula: C₂₂H₂₄ClF₂N
MW: 375.9 g/mol

VQ-035122

Reference Standard

(R)-3-(4-(2-Chloro-5-iodobenzyl)phenoxy)tetrahydrofuran chemical structure

(R)-3-(4-(2-Chloro-5-iodobenzyl)phenoxy)tetrahydrofuran

CAS: 2194590-02-6
Formula: C₁₇H₁₆ClIO₂
MW: 414.7 g/mol

VQ-025528

Reference Standard

(R)-3-(4-(7H-Pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl)-3-cyclopentylpropanamide chemical structure

(R)-3-(4-(7H-Pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl)-3-cyclopentylpropanamide

CAS: 2102675-42-1
Formula: C₁₇H₂₀N₆O
MW: 324.4 g/mol

VQ-027792

Reference Standard

(R)-3-(4-Phenoxyphenyl)-1-(piperidin-3-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine Dihydrochloride chemical structure

(R)-3-(4-Phenoxyphenyl)-1-(piperidin-3-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine Dihydrochloride

CAS: 1701403-10-2
Formula: C₂₂H₂₄Cl₂N₆O
MW: 459.4 g/mol

VQ-031122

Reference Standard

(R)-3-(5-(2-(Bis(2-(2-(2,2,2-Trifluoroethoxy)phenoxy)ethyl)amino)propyl)-7-cyanoindolin-1-yl)propyl benzoate chemical structure

(R)-3-(5-(2-(Bis(2-(2-(2,2,2-Trifluoroethoxy)phenoxy)ethyl)amino)propyl)-7-cyanoindolin-1-yl)propyl benzoate

CAS: 885340-14-7
Formula: C₄₂H₄₃F₆N₃O₆
MW: 799.8 g/mol

VQ-042169

Reference Standard

(R)-3-(5-Bromo-4-methylthiophen-2-yl)-5-(3,4,5-trichlorophenyl)-5-(trifluoromethyl)-4,5-dihydroisoxazole chemical structure

(R)-3-(5-Bromo-4-methylthiophen-2-yl)-5-(3,4,5-trichlorophenyl)-5-(trifluoromethyl)-4,5-dihydroisoxazole

CAS: 1613733-77-9
Formula: C₁₅H₈BrCl₃F₃NOS
MW: 493.6 g/mol

VQ-048956

Reference Standard

(R)-3-(7-Methyl-1H-indazol-5-yl)-2-(4-(2-oxo-1,2-dihydroquinolin-3-yl)piperidine-1-carboxamido)propanoic Acid chemical structure

(R)-3-(7-Methyl-1H-indazol-5-yl)-2-(4-(2-oxo-1,2-dihydroquinolin-3-yl)piperidine-1-carboxamido)propanoic Acid

CAS: 928014-62-4
Formula: C₂₆H₂₇N₅O₄
MW: 473.5 g/mol

VQ-028772

Reference Standard

(R)-3-(Bromomethyl)hexanoic acid chemical structure

(R)-3-(Bromomethyl)hexanoic acid

CAS: 1942054-60-5
Formula: C₇H₁₃BrO₂
MW: 209.08 g/mol

VQ-024655

Reference Standard

(R)-3-(Methylamino)-1-(thiophen-2-YL)propan-1-OL chemical structure

(R)-3-(Methylamino)-1-(thiophen-2-YL)propan-1-OL

CAS: 116539-57-2
Formula: C₈H₁₃NOS
MW: 171.26 g/mol

VQ-021210

Reference Standard

(R)-3-(Naphthalen-1-yloxy)-1-phenylpropan-1-OL chemical structure

(R)-3-(Naphthalen-1-yloxy)-1-phenylpropan-1-OL

CAS: 156453-53-1
Formula: C₁₉H₁₈O₂
MW: 278.3 g/mol

VQ-025182

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