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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

1-(3-Bromo-4,5-dichlorophenyl)-2,2,2-trifluoroethan-1-one chemical structure

1-(3-Bromo-4,5-dichlorophenyl)-2,2,2-trifluoroethan-1-one

CAS: 2226274-70-8
Formula: C₈H₂BrCl₂F₃O
MW: 321.9 g/mol

VQ-038159

Reference Standard

1-(3-Bromo-5-((4-(4-chlorothiophen-2-yl)-5-(4-cyclohexylpiperazin-1-yl)thiazol-2-yl)carbamoyl)pyridin-2-yl)piperidine-4-carboxylic Acid chemical structure

1-(3-Bromo-5-((4-(4-chlorothiophen-2-yl)-5-(4-cyclohexylpiperazin-1-yl)thiazol-2-yl)carbamoyl)pyridin-2-yl)piperidine-4-carboxylic Acid

CAS: 1290121-24-2
Formula: C₂₉H₃₄BrClN₆O₃S₂
MW: 694.1 g/mol

VQ-029300

Reference Standard

1-(3-Bromo-6-(3-methyl-3-(methylsulfonyl)but-1-yn-1-yl)pyridin-2-yl)-2-(3,5-difluorophenyl)ethan-1-one chemical structure

1-(3-Bromo-6-(3-methyl-3-(methylsulfonyl)but-1-yn-1-yl)pyridin-2-yl)-2-(3,5-difluorophenyl)ethan-1-one

CAS: 3044746-78-0
Formula: C₁₉H₁₆BrF₂NO₃S
MW: 456.3 g/mol

VQ-037931

Reference Standard

1-(3-Bromophenyl)-4-(3-chloropropyl)piperazine chemical structure

1-(3-Bromophenyl)-4-(3-chloropropyl)piperazine

CAS: 328410-01-1
Formula: C₁₃H₁₈BrClN₂
MW: 317.65 g/mol

VQ-034498

Reference Standard

1-(3-Bromophenyl)-5-methylpyridin-2(1H)-one chemical structure

1-(3-Bromophenyl)-5-methylpyridin-2(1H)-one

CAS: 912570-13-9
Formula: C₁₂H₁₀BrNO
MW: 264.12 g/mol

VQ-033122

Reference Standard

1-(3-Bromoprop-1-en-2-yl)-2,4-difluorobenzene chemical structure

1-(3-Bromoprop-1-en-2-yl)-2,4-difluorobenzene

CAS: 159276-58-1
Formula: C₉H₇BrF₂
MW: 233.05 g/mol

VQ-041561

Reference Standard

1-(3-Bromopropyl)-1,3-dihydro-2H-benzimidazol-2-one chemical structure

1-(3-Bromopropyl)-1,3-dihydro-2H-benzimidazol-2-one

CAS: 103784-04-9
Formula: C₁₀H₁₁BrN₂O
MW: 255.11 g/mol

VQ-030271

Reference Standard

1-(3-Bromopropyl)-3-(trifluoromethyl) benzene chemical structure

1-(3-Bromopropyl)-3-(trifluoromethyl) benzene

CAS: 129254-76-8
Formula: C₁₀H₁₀BrF₃
MW: 267.08 g/mol

VQ-029811

Reference Standard

1-(3-Bromopropyl)-4-(3-chlorophenyl)piperazine chemical structure

1-(3-Bromopropyl)-4-(3-chlorophenyl)piperazine

CAS: 142944-48-7
Formula: C₁₃H₁₈BrClN₂
MW: 317.65 g/mol

VQ-041514

Reference Standard

1-(3-Carboxy-2-pyridyl)-4-methyl-2-phenylpiperazine chemical structure

1-(3-Carboxy-2-pyridyl)-4-methyl-2-phenylpiperazine

CAS: 61338-13-4
Formula: C₁₇H₁₉N₃O₂
MW: 297.35 g/mol

VQ-023161

Reference Standard

1-(3-Chloro-3-phenylpropoxy)naphthalene chemical structure

1-(3-Chloro-3-phenylpropoxy)naphthalene

CAS: 1445281-25-3
Formula: C₁₉H₁₇ClO
MW: 296.8 g/mol

VQ-036536

Reference Standard

1-(3-Chloroallyl)-2-methyl-5-nitro-1H-imidazole chemical structure

1-(3-Chloroallyl)-2-methyl-5-nitro-1H-imidazole

CAS: 1384752-15-1
Formula: C₇H₈ClN₃O₂
MW: 201.61 g/mol

VQ-027043

Reference Standard

1-(3-Chlorobenzhydryl) piperazine chemical structure

1-(3-Chlorobenzhydryl) piperazine

CAS: 70558-10-0
Formula: C₁₇H₁₉ClN₂
MW: 286.8 g/mol

VQ-032430

Reference Standard

1-(3-Chlorophenyl)-1,2-propanedione 2-Oxime chemical structure

1-(3-Chlorophenyl)-1,2-propanedione 2-Oxime

CAS: 56472-71-0
Formula: C₉H₈ClNO₂
MW: 197.62 g/mol

VQ-034799

Reference Standard

1-(3-Chlorophenyl)-5-isopropyl Biguanide Hydrochloride chemical structure

1-(3-Chlorophenyl)-5-isopropyl Biguanide Hydrochloride

CAS: 1071546-52-5
Formula: C₁₁H₁₇Cl₂N₅
MW: 290.19 g/mol

VQ-041698

Reference Standard

1-(3-Chloropropyl)-1,3-dihydrobenzimidazol-2-one chemical structure

1-(3-Chloropropyl)-1,3-dihydrobenzimidazol-2-one

CAS: 62780-89-6
Formula: C₁₀H₁₁ClN₂O
MW: 210.66 g/mol

VQ-030268

Reference Standard

1-(3-Chloropropyl)-4-(3,4-dichlorophenyl)piperazine chemical structure

1-(3-Chloropropyl)-4-(3,4-dichlorophenyl)piperazine

CAS: 101364-27-6
Formula: C₁₃H₁₇Cl₃N₂
MW: 307.6 g/mol

VQ-034407

Reference Standard

1-(3-Fluoro-4-methoxyphenyl)-1-ethanone chemical structure

1-(3-Fluoro-4-methoxyphenyl)-1-ethanone

CAS: 455-91-4
Formula: C₉H₉FO₂
MW: 168.16 g/mol

VQ-030126

Reference Standard

1-(3-Fluoro-4-morpholinophenyl)-2-methyl-1,4,5,6-tetrahydropyrimidin-5-ol chemical structure

1-(3-Fluoro-4-morpholinophenyl)-2-methyl-1,4,5,6-tetrahydropyrimidin-5-ol

CAS: 2512211-93-5
Formula: C₁₅H₂₀FN₃O₂
MW: 293.34 g/mol

VQ-038072

Reference Standard

1-(3-Fluorophenyl)-2-phenylethan-1-one chemical structure

1-(3-Fluorophenyl)-2-phenylethan-1-one

CAS: 40281-50-3
Formula: C₁₄H₁₁FO
MW: 214.23 g/mol

VQ-035831

Reference Standard

1-(3-Iodo-1-isopropyl-1H-pyrazol-4-yl)ethan-1-one chemical structure

1-(3-Iodo-1-isopropyl-1H-pyrazol-4-yl)ethan-1-one

CAS: 1269440-49-4
Formula: C₈H₁₁IN₂O
MW: 278.09 g/mol

VQ-025539

Reference Standard

1-(3-Methoxyphenyl)-2-methylprop-2-en-1-one chemical structure

1-(3-Methoxyphenyl)-2-methylprop-2-en-1-one

CAS: 1352232-49-5
Formula: C₁₁H₁₂O₂
MW: 176.21 g/mol

VQ-044746

Reference Standard

1-(3-Methoxyphenyl)piperazine chemical structure

1-(3-Methoxyphenyl)piperazine

CAS: 16015-71-7
Formula: C₁₁H₁₆N₂O
MW: 192.26 g/mol

VQ-031495

Reference Standard

1-(3-Methoxypropyl)-4-piperidinamine chemical structure

1-(3-Methoxypropyl)-4-piperidinamine

CAS: 179474-79-4
Formula: C₉H₂₀N₂O
MW: 172.27 g/mol

VQ-027411

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