4-(7-(Diethylamino)-2-oxo-2H-chromen-3-yl)benzoyl cyanide CAS 203256-20-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 203256-20-6 |
| Molecular Formula | C21H18N2O3 |
| Molecular Weight | 346.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 4-(7-(Diethylamino)-2-oxo-2H-chromen-3-yl)benzoyl cyanide (CAS 203256-20-6) pharmaceutical standards reference standard. Molecular formula: C21H18N2O3. Molecular weight: 346.38 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C21H18N2O3 |
| Molecular Weight | 346.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2015 |
| Nitrogen Atoms | 2 |
Related Diethylamino Standards
- 3-(Diethylamino)-3-phenyl-1-(5-phenyl-1H-1,2,3-triazol-4-yl)prop-2-en-1-one (CAS 51720-08-2)
- 2-(Diethylamino)ethyl 4-(Thiophene-2-carboxamido)benzoate (CAS 712305-93-6)
- N-(2-(diethylamino)ethyl)-4-iodobenzamide (CAS 106790-96-9)
- Ethyl 4-(diethylamino)-3-iodobenzoate (CAS 1131614-74-8)
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Recommended Standards
- 4-(4-Methoxyphenyl)-5-oxo-2-(1H-pyrrol-1-yl)-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile (CAS 339100-59-3)
- 4,4''-Dimethoxy-[1,1':4',1''-terphenyl]-2',5'-dicarbaldehyde (CAS 916651-12-2)
- 4-(4-Methoxyphenyl)-2,3-diphenyl-1,2,4-oxadiazolidin-5-one (CAS 62803-76-3)
- 2,6-Dichloro-4-(chloromethyl)pyridine (CAS 101990-72-1)
- N-[2-(4-Benzylpiperazin-1-yl)-2-oxoethyl]-N-methylamine (CAS 900641-44-3)
- 1,2-Dimethyl-1H-imidazole-4,5-dicarboxylic acid (CAS 1218764-87-4)
- 2-((4-Amino-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(3,5-dimethoxyphenyl)acetamide (CAS 578758-45-9)
- Labetalol Impurity 54 (CAS CATO-C4X-246654)
- 3-Acetamido-4,5-dimethoxybenzoic acid (CAS 871892-91-0)
- Semaglutide impurity 83 (CAS CATO-C4X-222683)
Why CATO?
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