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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

(2E,4E,6E)-3-Methyl-7-(4,4,7a-trimethyl-2,4,5,6,7,7a-hexahydrobenzofuran-2-yl)octa-2,4,6-trienoic acid chemical structure

(2E,4E,6E)-3-Methyl-7-(4,4,7a-trimethyl-2,4,5,6,7,7a-hexahydrobenzofuran-2-yl)octa-2,4,6-trienoic acid

CAS: 3012-76-8
Formula: C₂₀H₂₈O₃
MW: 316.4 g/mol

VQ-031291

Reference Standard

(2E,4E,6E)-3-Methyl-7-(5,5,8a-trimethyl-3,5,6,7,8,8a-hexahydrobenzo[c][1,2]dioxin-3-yl)octa-2,4,6-trienoic Acid chemical structure

(2E,4E,6E)-3-Methyl-7-(5,5,8a-trimethyl-3,5,6,7,8,8a-hexahydrobenzo[c][1,2]dioxin-3-yl)octa-2,4,6-trienoic Acid

CAS: 129454-96-2
Formula: C₂₀H₂₈O₄
MW: 332.4 g/mol

VQ-026245

Reference Standard

(2E,4E,8Z,10E)-N-Isobutyldodeca-2,4,8,10-tetraenamide chemical structure

(2E,4E,8Z,10E)-N-Isobutyldodeca-2,4,8,10-tetraenamide

CAS: 75917-90-7
Formula: C₁₆H₂₅NO
MW: 247.38 g/mol

VQ-033937

Reference Standard

(2E,4E)-2,4-Dodecadienoic acid chemical structure

(2E,4E)-2,4-Dodecadienoic acid

CAS: 24738-48-5
Formula: C₁₂H₂₀O₂
MW: 196.29 g/mol

VQ-045222

Reference Standard

(2E,4E)-5-((2,4-Dinitrophenyl)amino)penta-2,4-dienal chemical structure

(2E,4E)-5-((2,4-Dinitrophenyl)amino)penta-2,4-dienal

CAS: 53405-99-5
Formula: C₁₁H₉N₃O₅
MW: 263.21 g/mol

VQ-040315

Reference Standard

(2E,4S)-5-[1,1'-Biphenyl]-4-yl-4-[[(1,1-dimethylethoxy)carbonyl]amino]-2-methyl-2-pentenoic Acid chemical structure

(2E,4S)-5-[1,1'-Biphenyl]-4-yl-4-[[(1,1-dimethylethoxy)carbonyl]amino]-2-methyl-2-pentenoic Acid

CAS: 1015037-46-3
Formula: C₂₃H₂₇NO₄
MW: 381.5 g/mol

VQ-042059

Reference Standard

(2E,7S,11R)-Vitamin K1 chemical structure

(2E,7S,11R)-Vitamin K1

CAS: 132487-95-7
Formula: C₃₁H₄₆O₂
MW: 450.7 g/mol

VQ-033169

Reference Standard

(2E)-3-Carboxy-N,N,N-trimethyl-2-propen-1-aminium Chloride chemical structure

(2E)-3-Carboxy-N,N,N-trimethyl-2-propen-1-aminium Chloride

CAS: 144205-67-4
Formula: C₇H₁₄ClNO₂
MW: 179.64 g/mol

VQ-037985

Reference Standard

(2R,2'R,3R,3'R,4R,4'R,5S,5'S)-6,6'-(Methylazanediyl)bis(hexane-1,2,3,4,5-pentaol) chemical structure

(2R,2'R,3R,3'R,4R,4'R,5S,5'S)-6,6'-(Methylazanediyl)bis(hexane-1,2,3,4,5-pentaol)

CAS: 158808-56-1
Formula: C₁₃H₂₉NO₁₀
MW: 359.37 g/mol

VQ-038287

Reference Standard

(2R,2'R,3R,3'R,4R,4'R,5S,5'S)-6,6'-Azanediylbis(hexane-1,2,3,4,5-pentaol) chemical structure

(2R,2'R,3R,3'R,4R,4'R,5S,5'S)-6,6'-Azanediylbis(hexane-1,2,3,4,5-pentaol)

CAS: 15351-31-2
Formula: C₁₂H₂₇NO₁₀
MW: 345.34 g/mol

VQ-031766

Reference Standard

(2R,2'R)-3,3'-Disulfanediylbis(2-(((allyloxy)carbonyl)amino)propanoic Acid) chemical structure

(2R,2'R)-3,3'-Disulfanediylbis(2-(((allyloxy)carbonyl)amino)propanoic Acid)

CAS: 80349-71-9
Formula: C₁₄H₂₀N₂O₈S₂
MW: 408.5 g/mol

VQ-042636

Reference Standard

(2R,2'R)-6-Fluoro-2-(2'-oxiranyl)chromane chemical structure

(2R,2'R)-6-Fluoro-2-(2'-oxiranyl)chromane

CAS: 197706-50-6
Formula: C₁₁H₁₁FO₂
MW: 194.2 g/mol

VQ-038570

Reference Standard

(2R,3AR,7aR)-octahydro-1H-indole-2-carboxylic acid chemical structure

(2R,3AR,7aR)-octahydro-1H-indole-2-carboxylic acid

CAS: 108507-42-2
Formula: C₉H₁₅NO₂
MW: 169.22 g/mol

VQ-041415

Reference Standard

(2R,3AR,7aS)-Octahydro-1H-indole-2-carboxylic Acid chemical structure

(2R,3AR,7aS)-Octahydro-1H-indole-2-carboxylic Acid

CAS: 145438-95-5
Formula: C₉H₁₅NO₂
MW: 169.22 g/mol

VQ-033134

Reference Standard

(2R,3R,11BR)-3-Isobutyl-9,10-dimethoxy-1,3,4,6,7,11b-hexahydro-2H-pyrido[2,1-a]isoquinolin-2-yl D-valinate chemical structure

(2R,3R,11BR)-3-Isobutyl-9,10-dimethoxy-1,3,4,6,7,11b-hexahydro-2H-pyrido[2,1-a]isoquinolin-2-yl D-valinate

CAS: 1025504-59-9
Formula: C₂₄H₃₈N₂O₄
MW: 418.6 g/mol

VQ-042789

Reference Standard

(2R,3R,11BS)-Dihydrotetrabenazine chemical structure

(2R,3R,11BS)-Dihydrotetrabenazine

CAS: 862377-29-5
Formula: C₁₉H₂₉NO₃
MW: 319.4 g/mol

VQ-034167

Reference Standard

(2R,3R,4R,5R) Suzetrigine Diastereomer

(2R,3R,4R,5R) Suzetrigine Diastereomer

CAS: 2649472-24-0
Formula: C₂₁H₂₀F₅N₃O₄
MW: 473.4 g/mol

VQ-034007

Reference Standard

(2R,3R,4R,5R)-2-(4-Aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-bis(benzyloxy)-5-((benzyloxy)methyl)tetrahydrofuran-2-carbonitrile chemical structure

(2R,3R,4R,5R)-2-(4-Aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-bis(benzyloxy)-5-((benzyloxy)methyl)tetrahydrofuran-2-carbonitrile

CAS: 1355357-49-1
Formula: C₃₃H₃₁N₅O₄
MW: 561.6 g/mol

VQ-043775

Reference Standard

(2R,3R,4R,5R)-2-(6-Acetamido-2-((3,3,3-trifluoropropyl)thio)-9H-purin-9-yl)-5-(acetoxymethyl)tetrahydrofuran-3,4-diyl Diacetate chemical structure

(2R,3R,4R,5R)-2-(6-Acetamido-2-((3,3,3-trifluoropropyl)thio)-9H-purin-9-yl)-5-(acetoxymethyl)tetrahydrofuran-3,4-diyl Diacetate

CAS: 163706-52-3
Formula: C₂₁H₂₄F₃N₅O₈S
MW: 563.5 g/mol

VQ-035262

Reference Standard

(2R,3R,4R,5R)-2-(Acetoxymethyl)-5-(6-(N-(2-(methylthio)ethyl)acetamido)-2-((3,3,3-trifluoropropyl)thio)-9H-purin-9-yl)tetrahydrofuran-3,4-diyl Diacetate chemical structure

(2R,3R,4R,5R)-2-(Acetoxymethyl)-5-(6-(N-(2-(methylthio)ethyl)acetamido)-2-((3,3,3-trifluoropropyl)thio)-9H-purin-9-yl)tetrahydrofuran-3,4-diyl Diacetate

CAS: 163706-57-8
Formula: C₂₄H₃₀F₃N₅O₈S₂
MW: 637.7 g/mol

VQ-035263

Reference Standard

(2R,3R,4R,5R)-5-(4-Benzamido-2-oxopyrimidin-1(2H)-yl)-2-((benzoyloxy)methyl)-4-chloro-4-methyltetrahydrofuran-3-yl benzoate chemical structure

(2R,3R,4R,5R)-5-(4-Benzamido-2-oxopyrimidin-1(2H)-yl)-2-((benzoyloxy)methyl)-4-chloro-4-methyltetrahydrofuran-3-yl benzoate

CAS: 1496551-70-2
Formula: C₃₁H₂₆ClN₃O₇
MW: 588 g/mol

VQ-044020

Reference Standard

(2R,3R,4R,5R)-5-(4-Benzamido-2-oxopyrimidin-1(2H)-yl)-2-((benzoyloxy)methyl)-4-fluoro-4-methyltetrahydrofuran-3-yl Benzoate chemical structure

(2R,3R,4R,5R)-5-(4-Benzamido-2-oxopyrimidin-1(2H)-yl)-2-((benzoyloxy)methyl)-4-fluoro-4-methyltetrahydrofuran-3-yl Benzoate

CAS: 817204-32-3
Formula: C₃₁H₂₆FN₃O₇
MW: 571.6 g/mol

VQ-023785

Reference Standard

(2R,3R,4R,5R)-5-Methyltetrahydrofuran-2,3,4-triyl triacetate chemical structure

(2R,3R,4R,5R)-5-Methyltetrahydrofuran-2,3,4-triyl triacetate

CAS: 76497-54-6
Formula: C₁₁H₁₆O₇
MW: 260.24 g/mol

VQ-021978

Reference Standard

(2R,3R,4R,5S,6S)-2-(Acetoxymethyl)-6-(3-(3-acetyl-4-ethoxybenzyl)-4-chlorophenyl)tetrahydro-2H-pyran chemical structure

(2R,3R,4R,5S,6S)-2-(Acetoxymethyl)-6-(3-(3-acetyl-4-ethoxybenzyl)-4-chlorophenyl)tetrahydro-2H-pyran

CAS: 2768435-31-8
Formula: C₃₁H₃₅ClO₁₁
MW: 619.1 g/mol

VQ-036522

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