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
![4-Ethoxy-3-(5-methyl-4-oxo-7-propyl-3,4-dihydro-imidazo[5,1-f][1,2,4]-triazin-2-yl)benzene-sulfonyl Chloride chemical structure](/media/structures/ITOAVBRRRCBWLU-UHFFFAOYSA-N.svg)
4-Ethoxy-3-(5-methyl-4-oxo-7-propyl-3,4-dihydro-imidazo[5,1-f][1,2,4]-triazin-2-yl)benzene-sulfonyl Chloride
- CAS
- 224789-26-8
- Formula
- C17H19ClN4O4S
- MW
- 410.9 g/mol
VQ-043344
![4-Ethoxy-7H-pyrrolo[2,3-d]pyrimidine chemical structure](/media/structures/KPSBLSBABRIUJP-UHFFFAOYSA-N.svg)
4-Ethyl-2,3-dioxo-1-piperazinecarbonyl chloride
- CAS
- 59703-00-3
- Formula
- C7H9ClN2O3
- MW
- 204.61 g/mol
VQ-028898
![4-Fluoro-1-isopropyl-2-methyl-1H-benzo[d]imidazole chemical structure](/media/structures/ZVFJFEGSVJUASC-UHFFFAOYSA-N.svg)
4-Fluoro-1-isopropyl-2-methyl-1H-benzo[d]imidazole
- CAS
- 1528469-78-4
- Formula
- C11H13FN2
- MW
- 192.23 g/mol
VQ-021373
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