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-(tert-Butylamino)-1-(2-chlorophenyl)propan-1-one
- CAS
- 1049974-40-4
- Formula
- C13H18ClNO
- MW
- 239.74 g/mol
VQ-035001
2-(tert-Butylamino)-3',5'-dichloropropiophenone Hydrochloride
- CAS
- 1346603-00-6
- Formula
- C13H18Cl3NO
- MW
- 310.6 g/mol
VQ-024689
![2-[-2[(5-Nitro-2-furanyl)methylene]hydrazinyl]acetic Acid chemical structure](/media/structures/YVUZTCSWXFILQY-FPYGCLRLSA-N.svg)
2-[-2[(5-Nitro-2-furanyl)methylene]hydrazinyl]acetic Acid
- CAS
- 91447-38-0
- Formula
- C7H7N3O5
- MW
- 213.15 g/mol
VQ-026934
![2-[(2-Amino-3-phenylpropanoyl)amino]-3-phenylpropanoic acid chemical structure](/media/structures/GKZIWHRNKRBEOH-HOTGVXAUSA-N.svg)
2-[(2-Amino-3-phenylpropanoyl)amino]-3-phenylpropanoic acid
- CAS
- 2577-40-4
- Formula
- C18H20N2O3
- MW
- 312.4 g/mol
VQ-043802
![2-[(2-Phenylacetyl)amino]acetic acid chemical structure](/media/structures/UTYVDVLMYQPLQB-UHFFFAOYSA-N.svg)
![2-[(2,4-Dichlorophenyl)-cyanomethylene]-hydrazine Carboximidamide chemical structure](/media/structures/CKIGTEMDGSRWLP-UHFFFAOYSA-N.svg)
2-[(2,4-Dichlorophenyl)-cyanomethylene]-hydrazine Carboximidamide
- CAS
- 94266-27-0
- Formula
- C9H7Cl2N5
- MW
- 256.09 g/mol
VQ-026347
![2-[(2,4-Dimethylphenyl)sulfanyl]aniline chemical structure](/media/structures/BJHMYQKFVFJZDC-UHFFFAOYSA-N.svg)
![2-[(2,6-Dichloro-4-oxo-2,5-cyclohexadien-1-ylidene)amino]-benzeneacetic Acid chemical structure](/media/structures/SKLQQURDEJYWEY-UHFFFAOYSA-N.svg)
2-[(2,6-Dichloro-4-oxo-2,5-cyclohexadien-1-ylidene)amino]-benzeneacetic Acid
- CAS
- 928343-25-3
- Formula
- C14H9Cl2NO3
- MW
- 310.1 g/mol
VQ-025298
![2-[(2S)-2-Benzyl-3-(methanesulfonyloxy) propanamido]acetic Acid chemical structure](/media/structures/FREXHGIWGSQYED-NSHDSACASA-N.svg)
2-[(2S)-2-Benzyl-3-(methanesulfonyloxy) propanamido]acetic Acid
- CAS
- 1852472-89-9
- Formula
- C13H17NO6S
- MW
- 315.34 g/mol
VQ-024222
![2-[(2S)-2,3-Dihydroxypropyl]-1H-isoindole-1,3(2H)-dione chemical structure](/media/structures/GUUVCKWUQHAMTB-ZETCQYMHSA-N.svg)
2-[(2S)-2,3-Dihydroxypropyl]-1H-isoindole-1,3(2H)-dione
- CAS
- 119835-88-0
- Formula
- C11H11NO4
- MW
- 221.21 g/mol
VQ-033604
![2-[(3-Chlorobenzoyl)amino]acetic acid chemical structure](/media/structures/ICYUIIJXZHPESK-UHFFFAOYSA-N.svg)
![2-[(3-Cyanophenyl)amino]acetic Acid chemical structure](/media/structures/ZXEFJAWHZVPDKS-UHFFFAOYSA-N.svg)
![2-[(3,3,3-Trifluoropropyl)thio]-adenosine chemical structure](/media/structures/YXQSQDQDYVOJLV-IOSLPCCCSA-N.svg)
![2-[(3,4-Dichlorophenyl)-cyanomethylene]-hydrazine Carboximidamide](/media/pack/2-34-dichlorophenyl-cyanomethylene-hydrazine-carboximidamide.svg?v=3)
2-[(3,4-Dichlorophenyl)-cyanomethylene]-hydrazine Carboximidamide
- CAS
- 356757-50-1
- Formula
- C9H7Cl2N5
- MW
- 256.09 g/mol
VQ-026349
![2-[(3,5-Dimethylphenoxy)methyl]oxirane chemical structure](/media/structures/ALJXKSOYHMOQSF-UHFFFAOYSA-N.svg)
![2-[(4-Aminophenyl)thio]benzonitrile chemical structure](/media/structures/IUGPUIIHUVWKED-UHFFFAOYSA-N.svg)
![2-[(4-Bromo-2-ethylbenzyl)oxy]tetrahydro-2H-pyran chemical structure](/media/structures/XNIZQRAJMSMCMK-UHFFFAOYSA-N.svg)
2-[(4-Bromo-2-ethylbenzyl)oxy]tetrahydro-2H-pyran
- CAS
- 1589558-70-2
- Formula
- C14H19BrO2
- MW
- 299.2 g/mol
VQ-033865
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