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
(R)-4-Benzyl-7-methyl-1,4-diazepane-2,5-dione
- CAS
- 1620097-05-3
- Formula
- C13H16N2O2
- MW
- 232.28 g/mol
VQ-044733
![(R)-4-Bromo-1-((3aS,4S,6S,7aR)-3a,5,5-trimethylhexahydro-4,6-methanobenzo[d][1,3,2]dioxaborol-2-yl)butan-1-amine hydrochloride chemical structure](/media/structures/CDYXWBZBKWTDFI-AKDYBRCWSA-N.svg)
(R)-4-Bromo-1-((3aS,4S,6S,7aR)-3a,5,5-trimethylhexahydro-4,6-methanobenzo[d][1,3,2]dioxaborol-2-yl)butan-1-amine hydrochloride
- CAS
- 131100-00-0
- Formula
- C14H26BBrClNO2
- MW
- 366.5 g/mol
VQ-040648
(R)-4-Fluoro-5-((2-methyl-1,4-diazepan-1-yl)sulfonyl)isoquinoline Hydrochloride
- CAS
- 223644-04-0
- Formula
- C15H19ClFN3O2S
- MW
- 359.8 g/mol
VQ-041925
(R)-4-Isobutyl-1-(((2R,3S,4S,5R)-2,3,4,5-tetrahydroxytetrahydro-2H-pyran-2-yl)methyl)pyrrolidin-2-one
- CAS
- 501666-22-4
- Formula
- C14H25NO6
- MW
- 303.35 g/mol
VQ-041634
(R)-4-Methyl-N-((S)-1-(((S)-4-methyl-1-((R)-2-methyloxiran-2-yl)-1-oxopentan-2-yl)amino)-1-oxo-3-phenylpropan-2-yl)-2-((S)-2-(2-morpholinoacetamido)-4-phenylbutanamido)pentanamide
- CAS
- 2049025-45-6
- Formula
- C40H57N5O7
- MW
- 719.9 g/mol
VQ-043596
(R)-4,4'-((2-(5-(2-Fluoro-3-methoxyphenyl)-3-(2-fluoro-6-(trifluoromethyl)benzyl)-4-methyl-2,6-dioxo-3,6-dihydropyrimidin-1(2H)-yl)-1-phenylethyl)azanediyl)dibutyric acid
- CAS
- 2409132-60-9
- Formula
- C36H36F5N3O7
- MW
- 717.7 g/mol
VQ-021216
![(R)-5-(2-(2,5-Difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-amine chemical structure](/media/structures/PNTNLXBVYHOZQI-CQSZACIVSA-N.svg)
(R)-5-(2-(2,5-Difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-amine
- CAS
- 1223404-88-3
- Formula
- C16H15F2N5
- MW
- 315.32 g/mol
VQ-026371
![(R)-5-(2-(2,5-Difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidine chemical structure](/media/structures/CLGVHZDADLOTAY-CQSZACIVSA-N.svg)
(R)-5-(2-(2,5-Difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidine
- CAS
- 1223404-89-4
- Formula
- C16H14F2N4
- MW
- 300.31 g/mol
VQ-037896
(R)-5-(2-Benzenesulphonylethenyl)-3-(N-methylpyrrolidin-2-ylmethyl)-1H-indole Hydrobromide
- CAS
- 143577-60-0
- Formula
- C22H25BrN2O2S
- MW
- 461.4 g/mol
VQ-036932
(R)-5-(2-Fluoro-3-methoxyphenyl)-1-(2-fluoro-6-(trifluoromethyl)benzyl)-6-methyl-3-(2-(2-oxopyrrolidin-1-yl)-2-phenylethyl)pyrimidine-2,4(1H,3H)-dione
- CAS
- 2248628-93-3
- Formula
- C32H28F5N3O4
- MW
- 613.6 g/mol
VQ-028895
(R)-5-(Tetrahydrofuran-2-yl)thiazole-4-carboxylic Acid
- CAS
- 613670-77-2
- Formula
- C8H9NO3S
- MW
- 199.23 g/mol
VQ-044217
(R)-5-Bromo-3-(1-(2,6-dichloro-3-fluorophenyl)ethoxy)pyridin-2-amine
- CAS
- 877399-00-3
- Formula
- C13H10BrCl2FN2O
- MW
- 380 g/mol
VQ-025094
![(R)-5-Chloro-2-(5-methyl-1,4-diazepan-1-yl) benzo[d]oxazole chemical structure](/media/structures/RADJSLVGESASMK-SECBINFHSA-N.svg)
(R)-5-Chloro-2-(5-methyl-1,4-diazepan-1-yl) benzo[d]oxazole
- CAS
- 1266975-27-2
- Formula
- C13H16ClN3O
- MW
- 265.74 g/mol
VQ-033999
(R)-5-Chloro-a-(cyclopropylethynyl)-2-amino-a-(trifluoromethyl) benzenemethanol
- CAS
- 927812-33-7
- Formula
- C13H11ClF3NO
- MW
- 289.68 g/mol
VQ-036896
(R)-5-Methoxy-N-propyl-1,2,3,4-tetrahydronaphthalen-2-amine
- CAS
- 101403-25-2
- Formula
- C14H21NO
- MW
- 219.32 g/mol
VQ-042020
(R)-5-Methyl-2-(piperidin-3-yl)isoindoline-1,3-dione
- CAS
- 1573118-32-7
- Formula
- C14H16N2O2
- MW
- 244.29 g/mol
VQ-035320
(R)-5,5'-(1,4-Bis(Phenylsulfonyl)butane-2,3-diyl)bis(3-(((R)-1-methylpyrrolidin-2-yl)methyl)-1H-indole)
- CAS
- 1422285-51-5
- Formula
- C44H50N4O4S2
- MW
- 763.03 g/mol
VQ-043148
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