(3E)-3-[(4-Chloro-3-nitrophenyl)methylidene]-3,4-dihydro-2H-1-benzopyran-4-one CAS 790683-49-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 790683-49-7 |
| Molecular Formula | C16H10ClNO4 |
| Molecular Weight | 315.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (3E)-3-[(4-Chloro-3-nitrophenyl)methylidene]-3,4-dihydro-2H-1-benzopyran-4-one (CAS 790683-49-7), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C16H10ClNO4. Molecular weight: 315.71 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C16H10ClNO4 |
| Molecular Weight | 315.71 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related E Standards
- 3-(2-Chloro-3,4,5-trimethoxyphenyl)-4,5-dihydro-1,2-oxazole-5-carboxylic acid (CAS 1018125-33-1)
- 5-Chloro-3-phenyl-7,8-dihydrobenzofuro[5,4-d]isoxazole-7-carboxylic acid (CAS 107804-48-8)
- 6-Chloro-3(1,3-dioxoisoindol-2-ylmethyl-benzoic acid (CAS 1115357-67-9)
- 2-(3-Chloro-2-methylphenyl)-1,3-dioxoisoindoline-5-carboxylic acid (CAS 356576-29-9)
- 2-(3-Chloro-4-methylphenyl)-1,3-dioxoisoindoline-5-carboxylic acid (CAS 313260-37-6)
- 5-Chloro-2-(1,3-dihydro-1,3- dioxo-isoindol-2-yl)methylbenzoic acid (CAS 266341-87-1)
- Methyl 2-(2-(3-chloro-2-nitrobenzyl)-1,3-dioxolan-2-yl)acetate (CAS 2677030-78-1)
- 2-Chloro-8-(phenylselanyl)cyclooctanone (CAS 115534-55-9)
Recommended Standards
- (2R,3R,4R,5R)-5-(6-Amino-8-chloro-9H-purin-9-yl)-2-(hydroxymethyl)-4-methoxytetrahydrofuran-3-ol (CAS 634207-55-9)
- 1,6-Diamino-4-(3-chloro-4-methoxyphenyl)-2-oxo-1,2-dihydropyridine-3,5-dicarbonitrile (CAS 865660-13-5)
- (2R,3R,4R,5R)-2-(6-Amino-2-chloro-9H-purin-9-yl)-5-(hydroxymethyl)-3-methyltetrahydrofuran-3,4-diol (CAS 205171-11-5)
- 1-(2,4,6-Trihydroxy-3-methylphenyl)ethanone (CAS 2657-28-5)
- 4-bromo-1-(3-methoxypropanesulfonyl)piperidine (CAS 1502579-29-4)
- Tert-butyl 4-amino-4-(2-chlorobenzyl)piperidine-1-carboxylate (CAS 1707580-66-2)
- 1-(2-Aminoethyl)-4-ethylcyclohexan-1-ol (CAS 1513597-56-2)
- Andradurin (CAS 4838-37-3)
- [(1E)-2-(2,4-Dinitrophenyl)cyclohexylidene]amino benzenesulfonate (CAS 478078-72-7)
- C-telopeptide (CAS 162929-64-8)
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