3-(2,4-Dichlorophenyl)-3,4-dihydro-1-oxo-1H-2-benzopyran-4-carboxylic acid CAS 400751-70-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 400751-70-4 |
| Molecular Formula | C16H10Cl2O4 |
| Molecular Weight | 337.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-(2,4-Dichlorophenyl)-3,4-dihydro-1-oxo-1H-2-benzopyran-4-carboxylic acid (CAS 400751-70-4), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C16H10Cl2O4. Molecular weight: 337.15 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C16H10Cl2O4 |
| Molecular Weight | 337.15 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
Related Dichlorophenyl Standards
- 5-{4-[(2,4-dichlorophenyl)methoxy]phenyl}-2,3-dihydro-1,3,4-oxadiazol-2-one (CAS 866152-87-6)
- (3-(2,4-Dichlorophenyl)-1-(2-fluorophenyl)-1H-pyrazol-4-yl)methanol (CAS 618444-51-2)
- (2E)-1-(2,5-Dichlorophenyl)-3-(2,3-dimethoxyphenyl)prop-2-en-1-one (CAS 1004008-99-4)
- (2E)-3-(2,4-Dichlorophenyl)-1-(2,4-dimethoxyphenyl)prop-2-en-1-one (CAS 171365-99-4)
- (2E)-1-(2,5-Dichlorophenyl)-3-(2,4-dimethoxyphenyl)prop-2-en-1-one (CAS 183798-63-2)
- (2E)-1-(3,4-Dichlorophenyl)-3-(2,4-dimethoxyphenyl)prop-2-en-1-one (CAS 183798-71-2)
- (2E)-1-(2,4-Dichlorophenyl)-3-(2,4-dimethoxyphenyl)prop-2-en-1-one (CAS 874346-52-8)
- (2E)-1-(2,4-Dichlorophenyl)-3-(3,4-dimethoxyphenyl)prop-2-en-1-one (CAS 925703-41-9)
Recommended Standards
- 2-Bromo-5-[(carbamoylmethyl)sulfamoyl]benzoic acid (CAS 848290-15-3)
- tert-Butyl (3-iodo-4-oxocyclohex-2-en-1-yl)carbamate (CAS 205877-96-9)
- 1-(5-Methyl-4-nitro-3-(perfluoropropyl)-1H-pyrazol-1-yl)ethan-1-one (CAS 244033-12-3)
- 3-Bromo-6-(2-methoxyphenyl)pyridine (CAS 1194683-55-0)
- 1-Bromo-2-(3-bromopropoxy)benzene (CAS 37136-84-8)
- Vonoprazan Impurity 173 (CAS CATO-C4X-1020173)
- 2-Acetamido-3-ethoxy-3-oxopropanoic acid (CAS 54681-67-3)
- 1-((4-Methoxypyridin-3-yl)sulfonyl)piperazine (CAS 1352525-55-3)
- 1-Allyl-7-chloro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 105946-14-3)
- Tirzepatide Impurity 48 (CAS CATO-C4X-324048)
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