3-(5-Chlorobenzo[d]oxazol-2-yl)-7-(diethylamino)-2-oxo-2H-chromene-4-carbonitrile CAS 70546-12-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 70546-12-2 |
| Molecular Formula | C21H16ClN3O3 |
| Molecular Weight | 393.82 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-(5-Chlorobenzo[d]oxazol-2-yl)-7-(diethylamino)-2-oxo-2H-chromene-4-carbonitrile (CAS 70546-12-2), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C21H16ClN3O3. Molecular weight: 393.82 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C21H16ClN3O3 |
| Molecular Weight | 393.82 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chlorobenzo Standards
- N-(4-(5-Chlorobenzo[d]oxazol-2-yl)phenyl)-3-nitrobenzamide (CAS 331668-02-1)
- 3-(5-Chlorobenzo[d]thiazol-2-yl)-2-phenylquinazolin-4(3H)-one (CAS 82450-43-9)
- 3-(6-Chlorobenzo[d]thiazol-2-yl)-2-phenylquinazolin-4(3H)-one (CAS 82450-44-0)
- 3-(5-Chlorobenzo[d]oxazol-2-yl)-N-(3-(trifluoromethyl)benzyl)pyridin-2-amine (CAS 339102-07-7)
- N-(3-(6-Chlorobenzo[d]oxazol-2-yl)-5-methylphenyl)-4-ethoxybenzamide (CAS 590396-53-5)
- N-(5-(5-Chlorobenzo[d]oxazol-2-yl)-2-methylphenyl)-3-nitrobenzamide (CAS 313953-44-5)
- 10-Chlorobenzo[e]benzo[4,5]imidazo[1,2-c][1,2,3]triazine (CAS 10211-11-7)
- (3-Chlorobenzo[b]thiophen-2-yl)(4-(4-fluorophenyl)piperazin-1-yl)methanone (CAS 351329-77-6)
Recommended Standards
- 2-Bromo-3-(bromomethyl)-4-fluoro-1-iodobenzene (CAS 2092531-09-2)
- Tert-butyl ((1-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)piperidin-3-yl)methyl)carbamate (CAS 1417793-53-3)
- 2-(Fmoc-amino)-5-chlorobenzoic Acid (CAS 332121-90-1)
- 6-Methoxy-2-methyl-4H-benzo[d][1,3]oxazin-4-one (CAS 38527-50-3)
- Ethyl 3-bromo-2-oxo-3-(4-(trifluoromethyl)phenyl)propanoate (CAS 905807-87-6)
- 1-(3-(Chloromethyl)azetidin-1-yl)ethan-1-one (CAS 1872005-46-3)
- Ticolubant (CAS 154413-61-3)
- 2-Benzoyl-4-bromo-5-methylisoxazol-3(2H)-one (CAS 1674389-81-1)
- 2-(2-Methyl-4-nitrophenyl)-1H-pyrrole (CAS 1224595-57-6)
- Semaglutide Impurity 3 (CAS CATO-C4X-22263)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com