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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

(Z)-3-(Dimethylamino)-1-(pyridin-3-yl)prop-2-en-1-one chemical structure

(Z)-3-(Dimethylamino)-1-(pyridin-3-yl)prop-2-en-1-one

CAS: 75415-01-9
Formula: C₁₀H₁₂N₂O
MW: 176.21 g/mol

VQ-038645

Reference Standard

(Z)-3-Carboxy-N,N,N-trimethylprop-2-en-1-aminium chloride chemical structure

(Z)-3-Carboxy-N,N,N-trimethylprop-2-en-1-aminium chloride

CAS: 835638-57-8
Formula: C₇H₁₄ClNO₂
MW: 179.64 g/mol

VQ-037987

Reference Standard

(Z)-3-Chloro-N-methyl-N-(naphthalen-1-ylmethyl)prop-2-en-1-amine chemical structure

(Z)-3-Chloro-N-methyl-N-(naphthalen-1-ylmethyl)prop-2-en-1-amine

CAS: 704909-67-1
Formula: C₁₅H₁₆ClN
MW: 245.74 g/mol

VQ-034131

Reference Standard

(Z)-4-((4-(Piperidin-1-ylmethyl)pyridin-2-yl)oxy)but-2-en-1-amine chemical structure

(Z)-4-((4-(Piperidin-1-ylmethyl)pyridin-2-yl)oxy)but-2-en-1-amine

CAS: 103922-84-5
Formula: C₁₅H₂₃N₃O
MW: 261.36 g/mol

VQ-037854

Reference Standard

(Z)-4-((4-(Piperidin-1-ylmethyl)pyridin-2-yl)oxy)but-2-en-1-yl methanesulfonate

(Z)-4-((4-(Piperidin-1-ylmethyl)pyridin-2-yl)oxy)but-2-en-1-yl methanesulfonate

CAS: 2897634-05-6
Formula: C₁₆H₂₄N₂O₄S
MW: 340.44 g/mol

VQ-037863

Reference Standard

(Z)-4-(2-(5-Nitrofuran-2-yl)vinyl)benzoic acid

(Z)-4-(2-(5-Nitrofuran-2-yl)vinyl)benzoic acid

CAS: 14157-81-4
Formula: C₁₃H₉NO₅
MW: 259.21 g/mol

VQ-038635

Reference Standard

(Z)-4-(Trimethylammonio)but-2-enoate chemical structure

(Z)-4-(Trimethylammonio)but-2-enoate

CAS: 1440950-65-1
Formula: C₇H₁₃NO₂
MW: 143.18 g/mol

VQ-048860

Reference Standard

(Z)-7-(((S)-2-Amino-2-carboxyethyl)thio)-2-((S)-2,2-dimethylcyclopropane-1-carboxamido)hept-2-enoic acid chemical structure

(Z)-7-(((S)-2-Amino-2-carboxyethyl)thio)-2-((S)-2,2-dimethylcyclopropane-1-carboxamido)hept-2-enoic acid

CAS: 107873-05-2
Formula: C₁₆H₂₆N₂O₅S
MW: 358.5 g/mol

VQ-028934

Reference Standard

(Z)-7-((1R,2R,3R,5S)-3,5-Dihydroxy-2-((S,E)-3-hydroxyoct-1-en-1-yl)cyclopentyl)hept-5-enoate sodium

(Z)-7-((1R,2R,3R,5S)-3,5-Dihydroxy-2-((S,E)-3-hydroxyoct-1-en-1-yl)cyclopentyl)hept-5-enoate sodium

CAS: 58581-22-9
Formula: C₂₀H₃₃NaO₅
MW: 376.47 g/mol

VQ-037032

Reference Standard

(Z)-9-(Prop-1-en-1-yl)-9H-purin-6-amine chemical structure

(Z)-9-(Prop-1-en-1-yl)-9H-purin-6-amine

CAS: 1464851-21-5
Formula: C₈H₉N₅
MW: 175.19 g/mol

VQ-028267

Reference Standard

(Z)-Ajoene chemical structure

CAS: 92285-00-2
Formula: C₉H₁₄OS₃
MW: 234.4 g/mol

VQ-032917

Reference Standard

(Z)-Betamethasone-Δ17,20,21- Aldehyde chemical structure

(Z)-Betamethasone-Δ17,20,21- Aldehyde

CAS: 52647-06-0
Formula: C₂₂H₂₇FO₄
MW: 374.4 g/mol

VQ-020682

Reference Standard

(Z)-Cinnamyl Cilnidipine chemical structure

(Z)-Cinnamyl Cilnidipine

CAS: 146924-45-0
Formula: C₂₇H₂₈N₂O₇
MW: 492.5 g/mol

VQ-022178

Reference Standard

(Z)-Dehydro Cilnidipine chemical structure

(Z)-Dehydro Cilnidipine

CAS: 146845-35-4
Formula: C₂₇H₂₆N₂O₇
MW: 490.5 g/mol

VQ-021148

Reference Standard

(Z)-Dimethoxy Tapinarof chemical structure

(Z)-Dimethoxy Tapinarof

CAS: 1622988-16-2
Formula: C₁₉H₂₂O₂
MW: 282.4 g/mol

VQ-034046

Reference Standard

(Z)-Ethyl 2-chloro-2-(2-(3-methoxyphenyl)hydrazono)acetate chemical structure

(Z)-Ethyl 2-chloro-2-(2-(3-methoxyphenyl)hydrazono)acetate

CAS: 405872-78-8
Formula: C₁₁H₁₃ClN₂O₃
MW: 256.68 g/mol

VQ-024326

Reference Standard

(Z)-Ethyl 3-(dimethylamino)-2-(2,4,5-trifluoro-3-methoxybenzoyl)acrylate chemical structure

(Z)-Ethyl 3-(dimethylamino)-2-(2,4,5-trifluoro-3-methoxybenzoyl)acrylate

CAS: 1363407-28-6
Formula: C₁₅H₁₆F₃NO₄
MW: 331.29 g/mol

VQ-038011

Reference Standard

(Z)-Ethyl 3-ethoxy-2-(2,4,5-trifluoro-3-methoxybenzoyl)acrylate chemical structure

(Z)-Ethyl 3-ethoxy-2-(2,4,5-trifluoro-3-methoxybenzoyl)acrylate

CAS: 122375-85-3
Formula: C₁₅H₁₅F₃O₅
MW: 332.27 g/mol

VQ-049172

Reference Standard

(Z)-Methyl 2-(3-Nitrobenzylidene)-3-oxobutanoate chemical structure

(Z)-Methyl 2-(3-Nitrobenzylidene)-3-oxobutanoate

CAS: 119128-13-1
Formula: C₁₂H₁₁NO₅
MW: 249.22 g/mol

VQ-043598

Reference Standard

(Z)-Mycophenolic Acid chemical structure

(Z)-Mycophenolic Acid

CAS: 2767988-82-7
Formula: C₁₇H₂₀O₆
MW: 320.3 g/mol

VQ-032036

Reference Standard

(Z)-N-(4-((4-(Piperidin-1-ylmethyl)pyridin-2-yl)oxy)but-2-en-1-yl)acetamide chemical structure

(Z)-N-(4-((4-(Piperidin-1-ylmethyl)pyridin-2-yl)oxy)but-2-en-1-yl)acetamide

CAS: 154923-16-7
Formula: C₁₇H₂₅N₃O₂
MW: 303.4 g/mol

VQ-037864

Reference Standard

(Z)-N-Benzyl-1-((4S,5R)-2,2-dimethyl-5-vinyl-1,3-dioxolan-4-yl)methanimine oxide

(Z)-N-Benzyl-1-((4S,5R)-2,2-dimethyl-5-vinyl-1,3-dioxolan-4-yl)methanimine oxide

CAS: 345898-95-5
Formula: C₁₅H₁₉NO₃
MW: 261.3 g/mol

VQ-044705

Reference Standard

(Z)-rac-Luliconazole chemical structure

(Z)-rac-Luliconazole

CAS: 101529-76-4
Formula: C₁₄H₉Cl₂N₃S₂
MW: 354.3 g/mol

VQ-031674

Reference Standard

(Z)-Sacubitril Maleic Acid chemical structure

(Z)-Sacubitril Maleic Acid

CAS: 2751722-77-5
Formula: C₂₄H₂₇NO₅
MW: 409.5 g/mol

VQ-021334

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