5,8-Dihydroxy-2-(4-methoxyphenethyl)-4H-chromen-4-one CAS 128922-70-3
| CAS No. | 128922-70-3 |
| Molecular Formula | C18H16O5 |
| Molecular Weight | 312.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 5,8-Dihydroxy-2-(4-methoxyphenethyl)-4H-chromen-4-one (CAS 128922-70-3), a certified reference material (molecular formula C18H16O5, MW 312.32 g/mol) for analytical method development and quality control.
Structurally, 5,8-Dihydroxy-2-(4-methoxyphenethyl)-4H-chromen-4-one (C18H16O5) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 312.32 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures 5,8-Dihydroxy-2-(4-methoxyphenethyl)-4H-chromen-4-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H16O5 |
| Molecular Weight | 312.32 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1993 |
Related Dihydroxy Standards
- (-)-5,13-Dihydroxy-8,16-dimethyl-1,9-dioxacyclohexadeca-3,11-diene-2,10-dione (-)-Pyrenophorol (3E,5S,8R,11E,13S,16R)-5,13-Dihydroxy-8,16-dimethyl-1,9-dioxacyclohexadeca-3,11-diene-2,10-dione 22248-41-5 Pyrenophorol (CAS 22248-41-5)
- 7,7-Dihydroxy-4,4-spirobi[chromene]-2,2(3H,3H)-dione (CAS 780821-74-1)
- 1,8-Dihydroxy-3-(((2-hydroxyethyl)amino)methyl)anthracene-9,10-dione (CAS 121210-80-8)
- N-(4,5-Dihydroxy-6-(hydroxymethyl)-2-(phenylthio)tetrahydro-2H-pyran-3-yl)acetamide (CAS 1093407-28-3)
- 7,4’-Dihydroxy-3’-prenylflavan (CAS 376361-96-5)
- 5,4'-Dihydroxy-7,3'-dimethoxyisoflavone (CAS 104668-88-4)
- 1,4-Dihydroxy-5,8-dimethoxy-2-methylanthracene-9,10-dione (CAS 108971-90-0)
- 3,5-Dihydroxy-7-methoxy-2-(4-methoxyphenyl)-4H-chromen-4-one (CAS 15486-33-6)
Recommended Standards
- 3-(3’,4’-Dimethoxyphenyl)-7-methoxycoumarin (CAS 127073-90-9)
- 2-(3,4-Dimethoxyphenyl)-3-hydroxy-8-methyl-4H-chromen-4-one (CAS 1313738-73-6)
- (4'-Hydroxy-3'-nitro-[1,1'-biphenyl]-2-yl)(pyrrolidin-3-yl)methanone (CAS 1262003-87-1)
- 2-(3,4-Dihydroxyphenyl)-3-hydroxy-6-propyl-4H-chromen-4-one (CAS 1313738-79-2)
- 1-((5-Bromopyrimidin-2-yl)amino)-3-methoxypropan-2-ol (CAS 1341779-88-1)
- 1-Benzyl-4-methylpyrrolidin-2-one (CAS 96240-04-9)
- 6-Chloro-3-fluoropicolinamide (CAS 1851115-33-7)
- 4-(Propan-2-yloxy)pyridin-2-amine (CAS 1314353-62-2)
- 1-(3,4-Dichlorobenzyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 1604036-61-4)
- 1-(2-Carboxyphenyl)-2,4,6-triphenylpyridin-1-ium perchlorate (CAS 68435-94-9)
- (1S,2S)-N1,N2-dimethylcyclohexane-1,2-diamine (2S,3S)-2,3-dihydroxysuccinate (CAS 1821793-37-6)
- 3,3-Dimethyl-1-oxa-6-azaspiro[3.3]heptane 2,2,2-trifluoroacetic acid (CAS 1254036-08-2)
- 2-Bromo-5-(1,1,1,3,3,3-hexafluoropropan-2-yloxy)benzonitrile (CAS 1779123-35-1)
- TAT 14 Peptide (Nrf2 Activator III) (CAS 1362661-34-4)
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