Impurities & Reference Standards
API Impurities
Source 1942 api impurities for research, QC and production, documented with COA and SDS.
14,098products
1,516in stock
COA + SDSwith every lot
2-(1-Methyl-5-(4-methylbenzoyl)-1H-pyrrol-2-yl)-1-morpholinoethan-1-one
- CAS
- 87344-18-1
- Formula
- C19H22N2O3
- MW
- 326.4 g/mol
VQ-034319
2-(1-Methylethyl)-2-propylpropanedioic Acid 1,3-Diethyl Ester
- CAS
- 62391-98-4
- Formula
- C13H24O4
- MW
- 244.33 g/mol
VQ-039748
2-(1-Trityl-1H-imidazol-4-yl)-1H-indene-1,3(2H)-dione
- CAS
- 1160219-68-0
- Formula
- C31H22N2O2
- MW
- 454.5 g/mol
VQ-028945
2-(1,2,3,4-Tetrahydronaphthalen-1-yl)-1H-imidazole
- CAS
- 945389-41-3
- Formula
- C13H14N2
- MW
- 198.26 g/mol
VQ-028316
![2-(1,6,7,8-Tetrahydro-2H-indeno[5,4-b]furan-8-yl)acetamide chemical structure](/media/structures/MNLUHVGGNMUGDD-UHFFFAOYSA-N.svg)
2-(1,6,7,8-Tetrahydro-2H-indeno[5,4-b]furan-8-yl)acetamide
- CAS
- 1053239-38-5
- Formula
- C13H15NO2
- MW
- 217.26 g/mol
VQ-044014
![2-(1,6,7,8-Tetrahydro-2H-indeno[5,4-b]furan-8-yl)Acetonitrile chemical structure](/media/structures/WPIVLYZNFICYFP-UHFFFAOYSA-N.svg)
2-(1,6,7,8-Tetrahydro-2H-indeno[5,4-b]furan-8-yl)Acetonitrile
- CAS
- 1217272-33-7
- Formula
- C13H13NO
- MW
- 199.25 g/mol
VQ-044341
![2-(1,6,7,8-Tetrahydro-2H-indeno[5,4-b]furan-8-yl)ethan-1-amine hydrochloride chemical structure](/media/structures/PTRBVFJPGFTDDU-UHFFFAOYSA-N.svg)
2-(1,6,7,8-Tetrahydro-2H-indeno[5,4-b]furan-8-yl)ethan-1-amine hydrochloride
- CAS
- 1053239-39-6
- Formula
- C13H18ClNO
- MW
- 239.74 g/mol
VQ-027730
![2-(10H-Benzo[b]pyrido[2,3-e][1,4]thiazin-10-yl)-N,N-dimethylpropan-1-amine Hydrochloride chemical structure](/media/structures/HFJJAJGARYYPMV-UHFFFAOYSA-N.svg)
2-(10H-Benzo[b]pyrido[2,3-e][1,4]thiazin-10-yl)-N,N-dimethylpropan-1-amine Hydrochloride
- CAS
- 132962-42-6
- Formula
- C16H20ClN3S
- MW
- 321.9 g/mol
VQ-031285
![2-(2-(1-(4-(2-(4,4-Dimethyl-4,5-dihydrooxazol-2-yl)propan-2-yl)phenethyl)piperidin-4-yl)-1H-benzo[d]imidazol-1-yl)ethan-1-ol chemical structure](/media/structures/POVJMUSSAISURP-UHFFFAOYSA-N.svg)
2-(2-(1-(4-(2-(4,4-Dimethyl-4,5-dihydrooxazol-2-yl)propan-2-yl)phenethyl)piperidin-4-yl)-1H-benzo[d]imidazol-1-yl)ethan-1-ol
- CAS
- 202189-82-0
- Formula
- C30H40N4O2
- MW
- 488.7 g/mol
VQ-029440
![2-(2-(1-(Dimethylamino)-1,2,3,6-tetrahydro-[1,1'-biphenyl]-4-yl)-5-fluoro-1H-indol-3-yl)ethan-1-ol](/media/pack/2-2-1-dimethylamino-1236-tetrahydro-11-biphenyl-4-yl-5-fluoro-1h-indol-3-ylethan-1-ol.svg?v=3)
2-(2-(1-(Dimethylamino)-1,2,3,6-tetrahydro-[1,1'-biphenyl]-4-yl)-5-fluoro-1H-indol-3-yl)ethan-1-ol
- CAS
- 1004541-42-7
- Formula
- C24H27FN2O
- MW
- 378.49 g/mol
VQ-035453
2-(2-(2-((1-(9-(4-Acetoxy-3-(acetoxymethyl)butyl)-2-amino-9H-purin-8-yl)ethyl)amino)-9H-purin-9-yl)ethyl)propane-1,3-diyl diacetate
- CAS
- 1797985-90-0
- Formula
- C30H40N10O8
- MW
- 668.7 g/mol
VQ-048339
![2-(2-(2-(4-(Dibenzo[b,f][1,4]thiazepin-11-yl)piperazin-1-yl)ethoxy)ethoxy)ethanol](/media/pack/2-2-2-4-dibenzobf14thiazepin-11-ylpiperazin-1-ylethoxyethoxyethanol.svg?v=3)
2-(2-(2-(4-(Dibenzo[b,f][1,4]thiazepin-11-yl)piperazin-1-yl)ethoxy)ethoxy)ethanol
- CAS
- 329216-69-5
- Formula
- C23H29N3O3S
- MW
- 427.6 g/mol
VQ-027694
2-(2-(2-(Dipropylamino)ethyl)-6-nitrophenyl)acetic Acid
- CAS
- 720656-64-4
- Formula
- C16H24N2O4
- MW
- 308.37 g/mol
VQ-044635
2-(2-(2-Amino-9H-purin-9-yl)ethyl)butane-1,4-diyl diacetate
- CAS
- 174155-69-2
- Formula
- C15H21N5O4
- MW
- 335.36 g/mol
VQ-044133
2-(2-(4-((2-Chlorophenyl)(phenyl)methyl)piperazin-1-yl)ethoxy)acetamide
- CAS
- 83881-41-8
- Formula
- C21H26ClN3O2
- MW
- 387.9 g/mol
VQ-047750
![2-(2-(4-(2-(4-(1-(2-Ethoxyethyl)-1H-benzo[d]imidazol-2-yl)piperidin-1-yl)ethyl)phenyl)propan-2-yl)-4,4-dimethyl-4,5-dihydrooxazole chemical structure](/media/structures/MXKMEANVUFWYSG-UHFFFAOYSA-N.svg)
2-(2-(4-(2-(4-(1-(2-Ethoxyethyl)-1H-benzo[d]imidazol-2-yl)piperidin-1-yl)ethyl)phenyl)propan-2-yl)-4,4-dimethyl-4,5-dihydrooxazole
- CAS
- 202189-77-3
- Formula
- C32H44N4O2
- MW
- 516.7 g/mol
VQ-020963
2-(2-(4-Bromophenyl)propan-2-yl)-4,4-dimethyl-4,5-dihydrooxazole
- CAS
- 192775-97-6
- Formula
- C14H18BrNO
- MW
- 296.2 g/mol
VQ-029442
2-(2-(4-Ethyl-3-(4-morpholinopiperidin-1-yl)phenyl)propan-2-yl)-1H-indole-6-carbonitrile
- CAS
- 1820882-01-6
- Formula
- C29H36N4O
- MW
- 456.6 g/mol
VQ-021480
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