5,4'-Dihydroxy-6,7,3',5'-tetramethoxyflavone CAS 83133-17-9
| CAS No. | 83133-17-9 |
| Molecular Formula | C19H18O8 |
| Molecular Weight | 374.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5,4'-Dihydroxy-6,7,3',5'-tetramethoxyflavone.
5,4'-Dihydroxy-6,7,3',5'-tetramethoxyflavone (CAS 83133-17-9), molecular formula C19H18O8 and molecular weight 374.34 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5,4'-Dihydroxy-6,7,3',5'-tetramethoxyflavone (C19H18O8) is characterized by a flavonoid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5,4'-Dihydroxy-6,7,3',5'-tetramethoxyflavone 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 | C19H18O8 |
| Molecular Weight | 374.34 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.) | 1980 |
Related Dihydroxy Standards
- 2,2'-Dihydroxy-[1,1'-binaphthalene]-4,4'-dicarboxylic acid (CAS 1206478-00-3)
- 3,5-dihydroxy-3,4,5,7-tetramethoxyflavone (CAS 14290-57-4)
- 5,7-Dihydroxy-3-methoxy-2-(3,4,5-trimethoxyphenyl)-4H-chromen-4-one (CAS 14585-04-7)
- (R)-2,2'-Dihydroxy-[1,1'-binaphthalene]-3,3'-dicarboxylic acid (CAS 18531-92-5)
- (S)-2,2'-Dihydroxy-[1,1'-binaphthalene]-3,3'-dicarboxylic acid (CAS 42167-04-4)
- 1,1'-Dihydroxy-3,3'-dimethyl-[2,2'-binaphthalene]-5,5',8,8'-tetraone (CAS 89475-31-0)
- 2,2'-Dihydroxy-[1,1'-binaphthalene]-3,3'-dicarboxylic acid (CAS 47568-49-0)
- 4,4''-Dihydroxy-[1,1':4',1''-terphenyl]-3,3'',5,5''-tetracarbaldehyde (CAS 2761020-02-2)
Recommended Standards
- 4,4'-Dihydroxy-7,7'-dimethyl-[1,1'-binaphthalene]-5,5',8,8'-tetraone (CAS 33927-59-2)
- 5-[2-(2,6-dioxo-3-piperidyl)-1,3-dioxo-isoindolin-4-yl]oxypentanoic acid (CAS 2169266-67-3)
- 5-Hydroxy-2-(4-hydroxy-3-methoxyphenyl)-3,7,8-trimethoxy-4H-chromen-4-one (CAS 571-71-1)
- 4,4''-Diformyl-[1,1':4',1''-terphenyl]-2',5'-dicarboxylic acid (CAS 2409130-70-5)
- 4-Chloro-2-(difluoromethyl)-6-methoxy-3-methylpyridine (CAS 1804495-17-7)
- 1-(Pyridin-3-yl)piperidine-3-carboxylic acid (CAS 1369113-00-7)
- N-(3-chlorophenyl)-2-(5-(p-tolyl)-1,2,4-oxadiazol-3-yl)acetamide (CAS 915931-56-5)
- 3,3-dimethyloxan-4-one (CAS 625099-31-2)
- 2-Chloro-3-ethynylpyridin-4-amine (CAS 1824077-78-2)
- Methyl 3-(4-aminophenyl)propanoate hydrochloride (CAS 91012-19-0)
- N-cyclopropyl-2-isothiocyanatoacetamide (CAS 1154551-45-7)
- Bis(3-bromothiophen-2-yl)methane (CAS 17965-59-2)
- (S,R,S)-AHPC-acetamido-O-PEG2-C1-acid (CAS 2172820-10-7)
- Osteogenic Growth Peptide (10-14) (CAS 105250-85-9)
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