{3-[(2,4-dichlorobenzoyloxy)methyl]-4-oxo-3,4-dihydro-2H-1-benzopyran-3-yl}methyl 2,4-dichlorobenzoate CAS 339028-78-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 339028-78-3 |
| Molecular Formula | C25H16Cl4O6 |
| Molecular Weight | 554.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
{3-[(2,4-dichlorobenzoyloxy)methyl]-4-oxo-3,4-dihydro-2H-1-benzopyran-3-yl}methyl 2,4-dichlorobenzoate (CAS 339028-78-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C25H16Cl4O6. Molecular weight: 554.20 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C25H16Cl4O6 |
| Molecular Weight | 554.20 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
Related dichlorobenzoyloxy Standards
- {2-[(2,4-dichlorobenzoyloxy)methyl]-1-oxo-1,2,3,4-tetrahydronaphthalen-2-yl}methyl 2,4-dichlorobenzoate (CAS 339028-74-9)
- Ethyl 3-[2-(2,4-dichlorobenzoyloxy)ethoxy]-5-[3-(trifluoromethyl)benzamido]-1,2-oxazole-4-carboxylate (CAS 303997-13-9)
- {3-[(2,4-dichlorobenzoyloxy)methyl]-4-oxo-3,4-dihydro-2H-1-benzothiopyran-3-yl}methyl 2,4-dichlorobenzoate (CAS 339028-82-9)
- Ethyl 3-[2-(2,4-dichlorobenzoyloxy)ethoxy]-5-[(E)-[(dimethylamino)methylidene]amino]-1,2-oxazole-4-carboxylate (CAS 303997-07-1)
Recommended Standards
- 2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-Nonadecafluorodecyl acrylate (CAS 335-83-1)
- (S)-JQ-35 (CAS 1349719-98-7)
- Avanafil Impurity 158 (CAS CATO-C4X-1118158)
- 2-((1H-Benzo[d]imidazol-2-yl)amino)-5,6-dihydropyrimidin-4(1H)-one (CAS 404826-11-5)
- 2-Methyl-4-((2-phenyl-1H-indol-3-yl)methylene)oxazol-5(4H)-one (CAS 81502-42-3)
- (5Z)-2-Sulfanylidene-5-{[2-(1H-1,2,4-triazol-1-yl)phenyl]methylidene}-1,3-thiazolidin-4-one (CAS 860789-53-3)
- 6-(TRIFLUOROMETHYL)-1H-INDENE (CAS 321937-10-4)
- 6-Methoxy-3,4-dihydronaphthalene-2-carboxylic Acid (CAS 78112-30-8)
- Methyl 4-Chloro-3-(cyanomethyl)benzoate (CAS 872091-83-3)
- Semaglutide impurity 32 (CAS CATO-C4X-222632)
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