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
![3,6-Dihydro-6,6-dimethyl-2-propyl-3-[[2'-[2-(triphenylmethyl)-2H-tetrazol-5-yl][1,1'-biphenyl]-4-yl]methyl]-4H-furo[3,4-d]imidazol-4-one chemical structure](/media/structures/ITQPEEZTQTWJEW-UHFFFAOYSA-N.svg)
3,6-Dihydro-6,6-dimethyl-2-propyl-3-[[2'-[2-(triphenylmethyl)-2H-tetrazol-5-yl][1,1'-biphenyl]-4-yl]methyl]-4H-furo[3,4-d]imidazol-4-one
- CAS
- 1048948-15-7
- Formula
- C43H38N6O2
- MW
- 670.8 g/mol
VQ-032238
![3,7-Dichloro-10,11-dihydro-5H-dibenzo[b,f]azepine chemical structure](/media/structures/RRRKOLZRCMHJSN-UHFFFAOYSA-N.svg)
3,7-Dichloro-10,11-dihydro-5H-dibenzo[b,f]azepine
- CAS
- 13080-74-5
- Formula
- C14H11Cl2N
- MW
- 264.1 g/mol
VQ-038831
![3,7-Dihydro-1H,5H-benzo[1,2-c:4,5-c']difuran-1,5-dione chemical structure](/media/structures/JZMJKVLDAURTKE-UHFFFAOYSA-N.svg)
3,7-Dihydro-1H,5H-benzo[1,2-c:4,5-c']difuran-1,5-dione
- CAS
- 16776-76-4
- Formula
- C10H6O4
- MW
- 190.15 g/mol
VQ-039017
3,8-Dihydroxy-1-methyl-9,10-dioxo-9,10-dihydroanthracene-2-carboxylic Acid
- CAS
- 69119-31-9
- Formula
- C16H10O6
- MW
- 298.25 g/mol
VQ-035044
3'-O-(5'-Deoxy-alpha-D-ribofuranosyl) Capecitabine
- CAS
- 1262133-68-5
- Formula
- C20H30FN3O9
- MW
- 475.5 g/mol
VQ-021975
![3',4'-Difluoro[1,1'-biphenyl]-2-amine chemical structure](/media/structures/HFHHGKVFBPGNTR-UHFFFAOYSA-N.svg)
![3',6'-Dihydroxy-4'-iodo-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one, Disodium Salt chemical structure](/media/structures/UNFZZSGVVWWFAD-UHFFFAOYSA-L.svg)
3',6'-Dihydroxy-4'-iodo-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one, Disodium Salt
- CAS
- 52010-86-3
- Formula
- C20H9INa2O5
- MW
- 502.2 g/mol
VQ-037324
3Alpha,12Alpha-Dihydroxy-5Beta-chol-9(11)-enic Acid
- CAS
- 24637-46-5
- Formula
- C24H38O4
- MW
- 390.6 g/mol
VQ-028600
3alpha,7beta-Dihydroxy-12-oxo-5beta-cholan-24-oic Acid
- CAS
- 81873-91-8
- Formula
- C24H38O5
- MW
- 406.6 g/mol
VQ-028597
3b,5b-Dihydroxy Drospirenone Ring-opened Alcohol Impurity
- CAS
- 82543-18-8
- Formula
- C24H38O4
- MW
- 390.6 g/mol
VQ-025422
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