3-(2-Chlorophenyl)-7-hydroxy-4H-chromen-4-one CAS 328020-06-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 328020-06-0 |
| Molecular Formula | C15H9ClO3 |
| Molecular Weight | 272.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(2-Chlorophenyl)-7-hydroxy-4H-chromen-4-one (CAS 328020-06-0) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C15H9ClO3. Molecular weight: 272.68 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C15H9ClO3 |
| Molecular Weight | 272.68 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, keep tightly closed to prevent evaporation |
| 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 Chlorophenyl Standards
- 2-(3-Chlorophenyl)-7-hydroxy-4H-chromen-4-one (CAS 127590-88-9)
- 2-(3-Chlorophenyl)-6-hydroxy-4H-chromen-4-one (CAS 140439-33-4)
- (4-Chlorophenyl)(5-hydroxy-1-benzofuran-3-yl)methanone (CAS 17249-67-1)
- 3-(2-Chlorophenyl)-7-hydroxycoumarin (CAS 263365-32-8)
- 3-(4-Chlorophenyl)-7-hydroxy-2H-chromen-2-one (CAS 20050-82-2)
- 2-(3-chlorophenyl)-1h-benZimidazole-5-carboxylic acid (CAS 1018278-53-9)
- 5-[(4-chlorophenyl)carbonyl]-2,3-dihydro-1H-1,3-benzodiazol-2-one (CAS 1096942-88-9)
- 2-(2-Chlorophenyl)imidazo[1,2-a]pyridine-3-carboxylic acid (CAS 1267166-99-3)
Recommended Standards
- 2-(3-Chlorobenzylidene)-6-hydroxybenzofuran-3(2h)-one (CAS 620545-89-3)
- 2-(2-Chlorobenzylidene)-6-hydroxybenzofuran-3(2h)-one (CAS 623122-66-7)
- 2-(2-Chloro-6-ethoxy-4-formylphenoxy)propanoic acid (CAS 590395-60-1)
- 2-Amino-2-(3-chloropyrazin-2-yl)vinyl tert-butyl carbonate (CAS 1786392-56-0)
- ethyl 3-(4-chlorophenyl)-2-cyanobut-2-enoate (CAS 13455-81-7)
- (S)-1-(2-Hydroxy-1-phenylethyl)-3-mesityl-4,5-dihydro-1H-imidazol-3-ium hexafluorophosphate(V) (CAS 872164-47-1)
- Ethyl 2-(4-(2,6-dimethylphenyl)piperazin-1-yl)-5-(thiophen-2-yl)-1H-pyrrole-3-carboxylate (CAS 478050-16-7)
- Methyl 2-(4-bromo-2-methylphenyl)acetate (CAS 958646-47-4)
- 1-(2,4-Difluorobenzyl)cyclopropan-1-amine (CAS 1260802-44-5)
- Tau Peptide (277-291) trifluoroacetate salt (CAS 330456-40-1)
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