7-Hydroxy-5-methoxy-2-phenyl-4H-chromen-4-one CAS 33554-47-1
| CAS No. | 33554-47-1 |
| Molecular Formula | C16H12O4 |
| Molecular Weight | 268.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
7-Hydroxy-5-methoxy-2-phenyl-4H-chromen-4-one (CAS 33554-47-1), molecular formula C16H12O4 and molecular weight 268.26 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, a hydroxyl group, an ether linkage, 7-Hydroxy-5-methoxy-2-phenyl-4H-chromen-4-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 268.26 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures 7-Hydroxy-5-methoxy-2-phenyl-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 | C16H12O4 |
| Molecular Weight | 268.26 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.) | 1966 |
Related Hydroxy Standards
- 7-Hydroxy-3-(4-hydroxybenzylidene)chroman-4-one (CAS 110064-50-1)
- 1234351-86-0 (2Z)-6-Hydroxy-2-(2-methoxybenzylidene)-1-benzofuran-3(2H)-one MFCD04144687 (CAS 1234351-86-0)
- (2Z)-6-Hydroxy-2-(3-methoxybenzylidene)-1-benzofuran-3(2H)-one (CAS 1234351-88-2)
- (Z)-6-Hydroxy-2-(4-methoxybenzylidene)benzofuran-3(2H)-one (CAS 1234351-90-6)
- 7-Hydroxy-3-(3-methoxyphenyl)-4H-chromen-4-one (CAS 139256-06-7)
- 1-Hydroxy-2-(methoxymethyl)anthracene-9,10-dione (CAS 174568-52-6)
- 1-(6-Hydroxy-2-(4-hydroxyphenyl)benzofuran-3-yl)ethanone (CAS 2726-50-3)
- 1-Hydroxy-2-methoxy-3-methylanthracene-9,10-dione (CAS 74272-73-4)
Recommended Standards
- 7-Hydroxy-3-(4-methoxyphenyl)-2h-chromen-2-one (CAS 66267-82-1)
- 8-Hydroxy-1-methoxy-3-methylanthracene-9,10-dione (CAS 67116-22-7)
- 7-Hydroxy-3-(2-methoxyphenyl)-4H-chromen-4-one (CAS 63909-40-0)
- 8-Hydroxy-7-methoxy-2-phenyl-4H-chromen-4-one (CAS 40316-76-5)
- tert-Butyl (4-aminopyrimidin-5-yl)carbamate (CAS 183311-31-1)
- 4-(3-Hydrazinylpyrazin-2-yl)thiomorpholine (CAS 1707603-30-2)
- 2-{[1,2,4]triazolo[4,3-a]pyridin-3-yl}acetic acid (CAS 933705-46-5)
- Ethyl (2E)-2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]sulfanyl}-3-[(4-methoxyphenyl)amino]prop-2-enoate (CAS 338422-78-9)
- 3-[(6-Methoxypyridin-3-yl)amino]-2-phenyl-1H-inden-1-one (CAS 946385-83-7)
- 5-Fluoro-1H-indazole-7-carboxylic acid (CAS 1038916-13-0)
- 1-(3-Fluorophenyl)-2-(methylthio)ethan-1-one (CAS 1178730-51-2)
- Ethyl 4-(2-(2,3-dibromo-6-ethoxy-4-formylphenoxy)acetamido)benzoate (CAS 832674-45-0)
- (3-Aminopropyl)urea (CAS 91900-47-9)
- C-Peptide 2 (rat) (CAS 41594-08-5)
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