4-(4-Chlorophenyl)-5,7-dihydroxychroman-2-one CAS 338417-72-4
| CAS No. | 338417-72-4 |
| Molecular Formula | C15H11ClO4 |
| Molecular Weight | 290.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4-(4-Chlorophenyl)-5,7-dihydroxychroman-2-one (C15H11ClO4) contains a flavonoid core, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 290.70 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
4-(4-Chlorophenyl)-5,7-dihydroxychroman-2-one (CAS 338417-72-4) is a high-purity analytical reference standard with the molecular formula C15H11ClO4 and a molecular weight of 290.70 g/mol.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C15H11ClO4 |
| Molecular Weight | 290.70 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
Related Chlorophenyl Standards
- 2-[N'-(4-Chlorophenyl)hydrazinecarbonyl]benzoic acid (CAS 109187-07-7)
- 3-[(2E)-3-(4-Chlorophenyl)prop-2-enoyl]-4-hydroxy-6-methyl-2H-pyran-2-one (CAS 14073-08-6)
- (Z)-[(4-Chlorophenyl)methyl][(4-nitrophenyl)methylidene]oxidoazanium (CAS 939888-34-3)
- 2-(4-Chlorophenyl)-2-oxoethyl 4-hydroxybenzoate (CAS 386730-85-4)
- 4-[(4-Chlorophenyl)amino]-2-(dimethylamino)-6-oxo-6H-1,3-oxazine-5-carbonitrile (CAS 303997-23-1)
- N-(2-Chlorophenyl)-2-isonicotinoylhydrazine-1-carboxamide (CAS 904755-29-9)
- 2-((4-Chlorophenyl)thio)-5-nitrobenzonitrile (CAS 78940-73-5)
- 4-((4-Chlorophenyl)thio)-3-nitrobenzonitrile (CAS 27917-77-7)
Recommended Standards
- 4-((2-Chloro-4-formylphenoxy)methyl)benzoic acid (CAS 433250-58-9)
- 4-[4-(Acetyloxy)-3-chlorophenyl]benzoic acid (CAS 304861-49-2)
- 3-Methylcinnolin-4(1H)-one (CAS 7317-82-0)
- 4'-Chloro-[1,1'-biphenyl]-2,3'-dicarboxylic acid 2-methyl ester (CAS 878207-35-3)
- Methyl 3-(3-chloro-4-cyanophenyl)benzoate (CAS 1355247-44-7)
- (R)-Ethyl 2-amino-3-(4-chlorophenyl)propanoate hydrochloride (CAS 51366-21-3)
- Hexaamminenickel(II)chloride (CAS 10534-88-0)
- 2'-Chloro-5-fluoro-[1,1'-biphenyl]-3-carboxylic acid (CAS 1261959-57-2)
- (5-((4-Chlorophenyl)sulfonyl)-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl)methyl acetate (CAS 318469-27-1)
- 2-(3,4-Dimethylphenyl)cyclopropan-1-amine (CAS 1157555-70-8)
- 1-Methylquinoline-2,4(1H,3H)-dione (CAS 61469-95-2)
- 3-(4-Chlorophenyl)-1,2-thiazole-5-carboxylic acid (CAS 82424-97-3)
- Methyl 2-(2,2,2-trifluoroacetamido)-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxylate (CAS 304668-20-0)
- Peptide YY (13-36) (canine, mouse, porcine, rat) (CAS 86895-09-2)
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 18665070610 / Nicole.chen@cato-chem.com