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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

(+/-)trans-3-[(1,3-Benzodioxol-5-yloxy)methyl]-4-(4''-fluorophenyl-4'-phenyl)piperidine Hydrochloride chemical structure

(+/-)trans-3-[(1,3-Benzodioxol-5-yloxy)methyl]-4-(4''-fluorophenyl-4'-phenyl)piperidine Hydrochloride

CAS: 1217655-87-2
Formula: C₂₅H₂₅ClFNO₃
MW: 441.9 g/mol

VQ-033072

Reference Standard

(±)-Isomenthone chemical structure

(±)-Isomenthone

CAS: 491-07-6
Formula: C₁₀H₁₈O
MW: 154.25 g/mol

VQ-027122

Reference Standard

(±)-Lavandulyl Acetate chemical structure

(±)-Lavandulyl Acetate

CAS: 25905-14-0
Formula: C₁₂H₂₀O₂
MW: 196.29 g/mol

VQ-037914

Reference Standard

(±)-N-Ethylnoradrenaline Hydrochloride chemical structure

(±)-N-Ethylnoradrenaline Hydrochloride

CAS: 3594-85-2
Formula: C₁₀H₁₆ClNO₃
MW: 233.69 g/mol

VQ-024149

Reference Standard

(±)-p-Fenfluramine Hydrochloride chemical structure

(±)-p-Fenfluramine Hydrochloride

CAS: 54779-55-4
Formula: C₁₂H₁₇ClF₃N
MW: 267.72 g/mol

VQ-035487

Reference Standard

(±)-Scopolamine chemical structure

(±)-Scopolamine

CAS: 138-12-5
Formula: C₁₇H₂₁NO₄
MW: 303.35 g/mol

VQ-043730

Reference Standard

(±)-trans-2-Phenylcyclopropylamine hydrochloride chemical structure

(±)-trans-2-Phenylcyclopropylamine hydrochloride

CAS: 1986-47-6
Formula: C₉H₁₂ClN
MW: 169.65 g/mol

VQ-034389

Reference Standard

(1-(3-Methoxyphenyl)-2-methylpentan-1-one) chemical structure

(1-(3-Methoxyphenyl)-2-methylpentan-1-one)

CAS: 1592075-83-6
Formula: C₁₃H₁₈O₂
MW: 206.28 g/mol

VQ-044747

Reference Standard

(1-Aminocyclohexyl)acetic acid chemical structure

(1-Aminocyclohexyl)acetic acid

CAS: 37631-92-8
Formula: C₈H₁₅NO₂
MW: 157.21 g/mol

VQ-040298

Reference Standard

(1-Benzyl-4-piperidinyl)methanol chemical structure

(1-Benzyl-4-piperidinyl)methanol

CAS: 67686-01-5
Formula: C₁₃H₁₉NO
MW: 205.3 g/mol

VQ-043758

Reference Standard

(1-Bromo-2-methylpropyl)cyclopropane chemical structure

(1-Bromo-2-methylpropyl)cyclopropane

CAS: 88106-31-4
Formula: C₇H₁₃Br
MW: 177.08 g/mol

VQ-041601

Reference Standard

(1-Imidazolyl)acetonitrile chemical structure

(1-Imidazolyl)acetonitrile

CAS: 98873-55-3
Formula: C₅H₅N₃
MW: 107.11 g/mol

VQ-031676

Reference Standard

(1-Methyl-2-phenyl-ethyl)-carbamic acid isobutyl ester chemical structure

(1-Methyl-2-phenyl-ethyl)-carbamic acid isobutyl ester

CAS: 27822-62-4
Formula: C₁₄H₂₁NO₂
MW: 235.32 g/mol

VQ-038383

Reference Standard

(1-Methyl-4-piperidinyl)[1-(2-phenylethyl)-1H-imidazol-2-yl]methanone chemical structure

(1-Methyl-4-piperidinyl)[1-(2-phenylethyl)-1H-imidazol-2-yl]methanone

CAS: 147082-78-8
Formula: C₁₈H₂₃N₃O
MW: 297.4 g/mol

VQ-024186

Reference Standard

(1-Methylpiperidin-4-yl)(1-phenethyl-1H-imidazol-2-yl)methanone Hydrochloride

(1-Methylpiperidin-4-yl)(1-phenethyl-1H-imidazol-2-yl)methanone Hydrochloride

CAS: 1629676-26-1
Formula: C₁₈H₂₃N₃O.HCl
MW: 297.4 g/mol

VQ-047355

Reference Standard

(1-Methylpiperidin-4-yl)(pyridin-2-yl)methanone chemical structure

(1-Methylpiperidin-4-yl)(pyridin-2-yl)methanone

CAS: 517875-04-6
Formula: C₁₂H₁₆N₂O
MW: 204.27 g/mol

VQ-031453

Reference Standard

(1-Methylpyrrolidin-3-yl)(pyridin-3-yl)methanone chemical structure

(1-Methylpyrrolidin-3-yl)(pyridin-3-yl)methanone

CAS: 125630-26-4
Formula: C₁₁H₁₄N₂O
MW: 190.24 g/mol

VQ-049231

Reference Standard

(1-Trityl-1H-imidazol-4-yl)methanol chemical structure

(1-Trityl-1H-imidazol-4-yl)methanol

CAS: 33769-07-2
Formula: C₂₃H₂₀N₂O
MW: 340.4 g/mol

VQ-031759

Reference Standard

(1,2,6,7,-Tetrahydro-8H-indeno[5,4-b]furan-8-ylidene)acetonitrile chemical structure

(1,2,6,7,-Tetrahydro-8H-indeno[5,4-b]furan-8-ylidene)acetonitrile

CAS: 221530-44-5
Formula: C₁₃H₁₁NO
MW: 197.23 g/mol

VQ-033436

Reference Standard

(1,4,5,6-Tetrahydropyrimidin-2-yl)methanamine chemical structure

(1,4,5,6-Tetrahydropyrimidin-2-yl)methanamine

CAS: 759408-08-7
Formula: C₅H₁₁N₃
MW: 113.16 g/mol

VQ-043060

Reference Standard

(1'R,2R)-2-(2'-Tosyl-1',2'-dihydroxyethyl)-6-fluorochromane chemical structure

(1'R,2R)-2-(2'-Tosyl-1',2'-dihydroxyethyl)-6-fluorochromane

CAS: 303176-46-7
Formula: C₁₈H₁₉FO₅S
MW: 366.4 g/mol

VQ-038574

Reference Standard

(1'R,2S)-2-(2'-Tosyl-1',2'-dihydroxyethyl)-6-fluorochromane chemical structure

(1'R,2S)-2-(2'-Tosyl-1',2'-dihydroxyethyl)-6-fluorochromane

CAS: 303176-40-1
Formula: C₁₈H₁₉FO₅S
MW: 366.4 g/mol

VQ-038573

Reference Standard

(1'S,2R)-2-(2'-Tosyl-1',2'-dihydroxyethyl)-6-fluorochromane chemical structure

(1'S,2R)-2-(2'-Tosyl-1',2'-dihydroxyethyl)-6-fluorochromane

CAS: 905454-52-6
Formula: C₁₈H₁₉FO₅S
MW: 366.4 g/mol

VQ-038572

Reference Standard

(1'S,2S)-2-(2'-Tosyl-1',2'-dihydroxyethyl)-6-fluorochromane chemical structure

(1'S,2S)-2-(2'-Tosyl-1',2'-dihydroxyethyl)-6-fluorochromane

CAS: 905454-58-2
Formula: C₁₈H₁₉FO₅S
MW: 366.4 g/mol

VQ-032080

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