3-Benzyl-7,8-dihydroxy-4-methyl-2h-chromen-2-one CAS 1658-77-1
| CAS No. | 1658-77-1 |
| Molecular Formula | C17H14O4 |
| Molecular Weight | 282.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Benzyl-7,8-dihydroxy-4-methyl-2h-chromen-2-one (C17H14O4) 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
3-Benzyl-7,8-dihydroxy-4-methyl-2h-chromen-2-one (CAS 1658-77-1), molecular formula C17H14O4 and molecular weight 282.29 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.
As a certified reference material (CRM), 3-Benzyl-7,8-dihydroxy-4-methyl-2h-chromen-2-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 | C17H14O4 |
| Molecular Weight | 282.29 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.) | 1957 |
Related Benzyl Standards
- 3-Benzyl-5,7-dihydroxy-4-methyl-2H-chromen-2-one (CAS 219551-85-6)
- 3-Benzyl-6,7-dihydroxy-4-methyl-2H-chromen-2-one (CAS 23368-41-4)
- 5,8-Dihydroxy-2-phenethyl-4H-chromen-4-one (CAS 69809-24-1)
- Benzyl 5,6-dihydroxy-1H-indole-2-carboxylate (CAS 113934-61-5)
- 4,6-Dihydroxy-4,6-bis(trifluoromethyl)tetrahydropyrimidine-2(1H)-thione (CAS 1820712-27-3)
- 5,8-Dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-carboxylic acid (CAS 19591-45-8)
- 1,3-Dihydroxy-8-methoxy-6-methylanthracene-9,10-dione (CAS 3775-08-4)
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Recommended Standards
- (E)-4-(3-(3-Methoxyphenyl)-3-oxoprop-1-en-1-yl)benzoic acid (CAS 1643380-25-9)
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- 5-(2,3,4-Trimethoxyphenyl)-5-oxovaleric acid (CAS 16093-16-6)
- 3-((4-Fluorobenzyl)oxy)-5-methoxythiophene-2-carboxylic acid (CAS 1707727-78-3)
- Tert-butyl (((3S,4S)-3-hydroxypiperidin-4-yl)methyl)carbamate (CAS 1932417-92-9)
- 7-Methoxy-2,3,4,5-tetrahydro-1H-benzo[d]azepine hydrochloride (CAS 17639-46-2)
- n-(2-Cyanopropyl)-3-fluoro-n-methylbenzenesulfonamide (CAS 1111552-50-1)
- (R)-3-Amino-2-fluoropropan-1-ol hydrochloride (CAS 2301855-88-7)
- 1-(5,6,7,8-Tetrahydroquinazolin-4-yl)-1H-pyrazole-3-carboxylic acid (CAS 1499896-90-0)
- 4-Oxo-4-[4-(phenylsulfonyl)-1-piperazinyl]-2-butenoic acid (CAS 741729-15-7)
- 5-(Oxan-4-yl)-4h-1,2,4-triazol-3-amine (CAS 1344229-83-9)
- ((1S,4s)-4-(trifluoromethyl)cyclohexyl)methanamine (CAS 2231663-62-8)
- 2-methyl-2,3-dihydro-1H-indole-1-sulfonamide (CAS 1094354-29-6)
- Semaglutide impurity 208 (CAS CATO-C4X-2226208)
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