4-Acetylphenyl 2H-chromene-3-carboxylate CAS 923847-56-7
| CAS No. | 923847-56-7 |
| Molecular Formula | C18H14O4 |
| Molecular Weight | 294.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-Acetylphenyl 2H-chromene-3-carboxylate (CAS 923847-56-7), molecular formula C18H14O4 and molecular weight 294.30 g/mol, is a CATO reference standard with documented purity and traceability.
4-Acetylphenyl 2H-chromene-3-carboxylate (C18H14O4) contains a flavonoid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C18H14O4 |
| Molecular Weight | 294.30 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
Related Acetylphenyl Standards
- N-(4-acetylphenyl)-3,4-dihydroisoquinoline-2(1H)-carboxamide (CAS 692732-82-4)
- 2-(2-Acetylphenyl)-4-benzyloxazol-5(4H)-one (CAS 62287-23-4)
- N-(2-acetylphenyl)-2-fluorobenzenesulfonamide (CAS 306977-71-9)
- N-(2-acetylphenyl)-4-fluorobenzenesulfonamide (CAS 303152-34-3)
- n-(3-Acetylphenyl)-4-fluorobenzenesulfonamide (CAS 338966-27-1)
- (S)-3-(4-Acetylphenyl)-4-benzyloxazolidin-2-one (CAS 352524-56-2)
- N-(3-Acetylphenyl)-1-benzothiophene-3-carboxamide (CAS 886629-21-6)
- N-(4-acetylphenyl)benzo[b]thiophene-3-carboxamide (CAS 886629-26-1)
Recommended Standards
- 4,5,9,10-Tetrahydropyrene-2,7-dicarboxylic acid (CAS 244789-60-4)
- 4-Amino-3-((2-(4-fluorophenyl)-2-oxoethyl)thio)-6-methyl-1,2,4-triazin-5(4H)-one (CAS 321602-37-3)
- 4-(Ethoxymethylidene)-2-(pyridin-2-yl)-1,2,3,4-tetrahydroisoquinoline-1,3-dione (CAS 750601-20-8)
- 4-Ethyl 1,2-dimethyl 3,5-dimethylbenzene-1,2,4-tricarboxylate (CAS 56863-78-6)
- 1-(6-Chloropyrimidin-4-yl)pyrrolidine-3-carboxylic acid (CAS 1707671-76-8)
- 1314446-39-3 2-(5-Chloro-1H-indol-3-yl)-6,7-dimethyl-quinoxaline (CAS 1314446-39-3)
- Ethyl 3-bromo-5-cyano-2-methylbenzoate (CAS 1805248-92-3)
- 2-Amino-4-chloro-N-phenyl-5-sulfamoylbenzamide (CAS 28524-73-4)
- (E)-2-(1H-Benzo[d]imidazol-2-yl)-3-(4-nitrophenyl)acrylonitrile (CAS 79613-23-3)
- (2-Chloro-4-isopropylpyrimidin-5-yl)boronic acid (CAS 2225180-56-1)
- (4-(Furan-2-carbonyl)piperazin-1-yl)(6-methoxypyridazin-3-yl)methanone (CAS 1286705-98-3)
- 2-(4-(2,2-Dicyanovinyl)-2-methoxyphenoxy)-N-phenylacetamide (CAS 333341-47-2)
- 2-Chloro-3-methoxyaniline hydrochloride (CAS 85893-87-4)
- Fibrinopeptide B (human) (CAS 36204-23-6)
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