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
![5-Ethyl 7-methyl 6-(2-chlorophenyl)-8-methyl-3,4-dihydro-2H-benzo[b][1,4]oxazine-5,7-dicarboxylate chemical structure](/media/structures/PRNSDMBRXFHJGM-UHFFFAOYSA-N.svg)
5-Ethyl 7-methyl 6-(2-chlorophenyl)-8-methyl-3,4-dihydro-2H-benzo[b][1,4]oxazine-5,7-dicarboxylate
- CAS
- 2802443-91-8
- Formula
- C20H20ClNO5
- MW
- 389.8 g/mol
VQ-047390
5-Ethyl-1,3-dihydro-1-(2,3,5,6-tetrafluorophenyl)-2H-indol-2-one
- CAS
- 220991-61-7
- Formula
- C16H11F4NO
- MW
- 309.26 g/mol
VQ-027868
![5-Ethyl-7-methyl-6-(2-chlorophenyl)-8-methyl-3,4,6,8a-tetrahydro-2H-benzo[b][1,4]oxazine-5,7-dicarboxylate chemical structure](/media/structures/RCMFVPRNIDIAFN-UHFFFAOYSA-N.svg)
5-Ethyl-7-methyl-6-(2-chlorophenyl)-8-methyl-3,4,6,8a-tetrahydro-2H-benzo[b][1,4]oxazine-5,7-dicarboxylate
- CAS
- 949155-12-8
- Formula
- C20H22ClNO5
- MW
- 391.8 g/mol
VQ-035699
![5-Fluoro-1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carbonitrile chemical structure](/media/structures/GPEUANAWZCBBHU-UHFFFAOYSA-N.svg)
5-Fluoro-1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carbonitrile
- CAS
- 1350653-26-7
- Formula
- C14H8F2N4
- MW
- 270.24 g/mol
VQ-034590
![5-Fluoro-1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carboxamide chemical structure](/media/structures/PFVRWSTVUQUXKP-UHFFFAOYSA-N.svg)
5-Fluoro-1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carboxamide
- CAS
- 1361232-73-6
- Formula
- C14H10F2N4O
- MW
- 288.25 g/mol
VQ-042870
![5-Fluoro-1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carboximidamide Hydrochloride chemical structure](/media/structures/SAYWMFNKUAMSSN-UHFFFAOYSA-N.svg)
5-Fluoro-1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carboximidamide Hydrochloride
- CAS
- 1426309-48-9
- Formula
- C14H12ClF2N5
- MW
- 323.73 g/mol
VQ-044588
![5-Fluoro-1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carboxylic Acid chemical structure](/media/structures/SJRPHOSEVJKVKI-UHFFFAOYSA-N.svg)
5-Fluoro-1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carboxylic Acid
- CAS
- 2135333-04-7
- Formula
- C14H9F2N3O2
- MW
- 289.24 g/mol
VQ-044589
5-Fluoro-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl Acetate
- CAS
- 2142562-01-2
- Formula
- C15H20BFO4
- MW
- 294.13 g/mol
VQ-027283
![5-Fluoro-4-(4-fluoro-1-isopropyl-2-methyl-1H-benzo[d]imidazol-6-yl)pyrimidin-2-amine chemical structure](/media/structures/ONTWRDSEPVGOKH-UHFFFAOYSA-N.svg)
5-Fluoro-4-(4-fluoro-1-isopropyl-2-methyl-1H-benzo[d]imidazol-6-yl)pyrimidin-2-amine
- CAS
- 2055637-56-2
- Formula
- C15H15F2N5
- MW
- 303.31 g/mol
VQ-045080
5-Formamido-1H-imidazole-4-carboxamide hydrochloride
- CAS
- 147156-43-2
- Formula
- C5H7ClN4O2
- MW
- 190.59 g/mol
VQ-035193
Need a price, a spec or a custom compound?
Send us your list — product names or CAS numbers, grade, quantity and destination. Our team replies with a formal quotation, COA and lead time.