2-Benzyl-7-methoxy-3-methyl-4H-chromen-4-one CAS 138548-50-2
| CAS No. | 138548-50-2 |
| Molecular Formula | C18H16O3 |
| Molecular Weight | 280.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Benzyl-7-methoxy-3-methyl-4H-chromen-4-one (C18H16O3) contains a steroid 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).
CATO supplies 2-Benzyl-7-methoxy-3-methyl-4H-chromen-4-one (CAS 138548-50-2), a certified reference material (molecular formula C18H16O3, MW 280.32 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), 2-Benzyl-7-methoxy-3-methyl-4H-chromen-4-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C18H16O3 |
| Molecular Weight | 280.32 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
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Recommended Standards
- Ethyl 7-methyl-2-phenylimidazo[1,2-a]pyridine-3-carboxylate (CAS 137997-34-3)
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- Ethyl 6-methyl-3-phenylimidazo[1,2-a]pyridine-2-carboxylate (CAS 137997-25-2)
- tert-Butyl (2-(6-acetyl-5-hydroxypyridin-2-yl)ethyl)carbamate (CAS 1393539-59-7)
- rel-Ethyl (2R,3aR,6aR)-1,5-dibenzyl-6-oxooctahydropyrrolo[3,4-b]pyrrole-2-carboxylate (CAS 2214243-55-5)
- Methyl 3-(3,5-Difluorophenyl)-3-oxopropionate (CAS 1530834-98-0)
- Dimethyl 4-oxo-4H-pyran-2,6-dicarboxylate (CAS 6558-96-9)
- 4-amino-3-(aminomethyl)benzoic acid (CAS 320726-93-0)
- tert-butyl (4,6-dimethylindolin-5-yl)carbamate (CAS CATO-C3D-263257)
- 2-Fluoro-6-(trifluoromethyl)benzamide (CAS 144851-59-2)
- 4-Ethoxy-3-methoxy-benzaldehyde oxime (CAS 81259-53-2)
- 3-Ethoxy-4-((1-methyl-1H-tetrazol-5-yl)methoxy)benzaldehyde (CAS 1373247-71-2)
- N,N-Diethyl-2-(piperazin-1-yl)-5,6,7,8-tetrahydroquinazolin-4-amine (CAS 76781-40-3)
- Peptide Impurity 81 TFA (CAS CATO-CPTD788581)
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