2-(4-Chlorophenyl)-6-methyl-4H-1-benzopyran-4-one CAS 60402-30-4
| CAS No. | 60402-30-4 |
| Molecular Formula | C16H11ClO2 |
| Molecular Weight | 270.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system, 2-(4-Chlorophenyl)-6-methyl-4H-1-benzopyran-4-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 270.71 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2-(4-Chlorophenyl)-6-methyl-4H-1-benzopyran-4-one (CAS 60402-30-4), molecular formula C16H11ClO2 and molecular weight 270.71 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C16H11ClO2 |
| Molecular Weight | 270.71 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 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.) | 1974 |
| Halogen Content | Cl-containing |
Related Chlorophenyl Standards
- 2-(3-Chlorophenyl)-5-phenyl-2,4-dihydro-3H-pyrazol-3-one (CAS 108124-77-2)
- 4-(4-(2-Chlorophenyl)oxazol-2-yl)aniline (CAS 1211594-43-2)
- (3E)-3-[(3-Chlorophenyl)methylidene]-3,4-dihydro-2H-1-benzopyran-4-one (CAS 1262616-91-0)
- (3E)-3-[(2-Chlorophenyl)methylidene]-3,4-dihydro-2H-1-benzopyran-4-one (CAS 1333395-36-0)
- N-(4-Chlorophenyl)-1H-indole-6-carboxamide (CAS 1455510-82-3)
- 3-(3-Chlorophenyl)-4-phenylfuran-2(5H)-one (CAS 1713463-32-1)
- 3-(4-Chlorophenyl)-2-methyl-3,4-dihydroquinazolin-4-one (CAS 1788-93-8)
- (2E)-2-(4-Chlorophenyl)-3-[(2-hydroxyphenyl)amino]prop-2-enenitrile (CAS 338403-00-2)
Recommended Standards
- 2-(4-Chlorophenyl)-5-(p-tolyl)-1,3,4-oxadiazole (CAS 52596-95-9)
- 2-(4-Chlorophenyl)-7-methyl-4H-chromen-4-one (CAS 313973-29-4)
- 2-(4-Chlorophenyl)-4-phenyl-1,2-dihydro-3H-pyrazol-3-one (CAS 400076-61-1)
- 2-(4-Chlorophenyl)-7-methylimidazo[1,2-a]pyridine-3-carbaldehyde (CAS 300708-61-6)
- Ochratoxin A-13C20 (CAS CATO-LCFD201910-AL)
- 1-(3-chloro-5-fluoro-phenyl)hexahydropyrimidine-2,4-dione (CAS 1691633-40-5)
- 2,3-Dimethoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5-(trifluoromethyl)pyridine (CAS 1357387-31-5)
- (S)-2-Methylthiomorpholine 1,1-dioxide hydrochloride (CAS 2043769-78-2)
- Dalbavancin Impurity 32 (CAS CATO-C4X-160232)
- 6-Fluoro-1h-pyrrolo[3,2-b]pyridine-3-carbaldehyde (CAS 1190316-09-6)
- 1-(4,6-Dimethylpyrimidin-2-yl)piperidin-4-amine (CAS 792940-21-7)
- 5-Chloro-1H-pyrrole-2-carbaldehyde (CAS 1757-28-4)
- Ethyl 3-amino-5-chloropicolinate (CAS 27330-35-4)
- Semaglutide-d5 (CAS CATO-C4X-2226153)
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