5,6,7,8-Tetramethoxy-2-(3,4,5-trimethoxyphenyl)-4H-chromen-4-one CAS 6965-36-2
| CAS No. | 6965-36-2 |
| Molecular Formula | C22H24O9 |
| Molecular Weight | 432.42 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 5,6,7,8-Tetramethoxy-2-(3,4,5-trimethoxyphenyl)-4H-chromen-4-one (CAS 6965-36-2), a certified reference material (molecular formula C22H24O9, MW 432.42 g/mol) for analytical method development and quality control.
Owing to a flavonoid core, a hydroxyl group, an ether linkage, 5,6,7,8-Tetramethoxy-2-(3,4,5-trimethoxyphenyl)-4H-chromen-4-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes ā including a molecular weight of 432.42 g/mol ā guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 5,6,7,8-Tetramethoxy-2-(3,4,5-trimethoxyphenyl)-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 | C22H24O9 |
| Molecular Weight | 432.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, 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.) | 1958 |
Related Tetramethoxy Standards
- 3,3'-(2,3,5,6-Tetramethoxy-1,4-phenylene)bis(1H-indole) (CAS 287117-66-2)
- 2,3,6,7-Tetramethoxy-9,9'-spirobi[fluorene] (CAS 821785-24-4)
- 5- Oxo- 1- [(2, 3, 6, 7- tetramethoxy- 9- phenanthrenyl) methyl] -L-proline (CAS 87227-00-7)
- 5-Oxo-1-[(2,3,6,7-tetramethoxy-9-phenanthrenyl)methyl-L-proline Methyl Ester (CAS 1203657-51-5)
- 2,3,7,8-Tetramethoxy-2,3,7,8-tetramethyldecahydrobenzo[1,2-b:4,5-b']bis([1,4]dioxine)-5,10-diol (CAS 176798-27-9)
- 5,5',6,6'-Tetramethoxy-3,3,3',3'-tetramethyl-2,2',3,3'-tetrahydro-1,1'-spirobi[indene] (CAS 6307-95-5)
- 1,1,3,3-Tetramethoxy-1,3-bis(3,3,3-trifluoropropyl)disiloxane (CAS 109961-44-6)
- 3,3,14,14-Tetramethoxy-2,15-dioxa-3,14-disilahexadecane (CAS 122185-09-5)
Recommended Standards
- 3-Nitro-4-(p-tolylthio)-N-(3-(trifluoromethyl)phenyl)benzamide (CAS 303988-19-4)
- Dihydro ketoprofen Ī²-D-glucuronide, 98% (CAS 849104-47-8)
- 2-(2-(2-((3-(Trifluoromethyl)phenoxy)methyl)thiazol-4-yl)ethyl)isoindoline-1,3-dione (CAS 860785-69-9)
- Naphthofluorescein (CAS 61419-02-1)
- N'-(2-((3-cyano-4-(4-methoxyphenyl)-6-phenylpyridin-2-yl)thio)acetyl)benzohydrazide (CAS 333777-95-0)
- Benzyl-[4-(4-fluoro-phenyl)-thiazol-2-yl]-amine (CAS 565209-32-7)
- Ethyl(1-methanesulfonylpropan-2-yl)amine (CAS 1248494-10-1)
- 4-Bromo-2-(tert-butyl)phenyl 3-piperidinylmethylether hydrochloride (CAS 1219972-47-0)
- 2-(4-Methoxy-2-methylphenyl)ethanamine (CAS 910391-08-1)
- tert-Butyl 4-amino-4-cyclohexylpiperidine-1-carboxylate (CAS 363192-66-9)
- Copper(II) Disodium Ethylenediaminetetraacetate Tetrahydrate (CAS 39208-15-6)
- N-(4-Bromobenzyl)-1-propanamine (CAS 150869-52-6)
- Methyl 3-chloro-5-ethoxy-4-((3-fluorobenzyl)oxy)benzoate (CAS 1706446-06-1)
- Semaglutide impurity 61 (CAS CATO-C4X-222661)
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