6,7-Dimethoxy-2-phenyl-4H-chromen-4-one CAS 26964-27-2
| CAS No. | 26964-27-2 |
| Molecular Formula | C17H14O4 |
| Molecular Weight | 282.29 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.
6,7-Dimethoxy-2-phenyl-4H-chromen-4-one (CAS 26964-27-2), molecular formula C17H14O4 and molecular weight 282.29 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 6,7-Dimethoxy-2-phenyl-4H-chromen-4-one (C17H14O4) 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 282.29 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
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.) | 1964 |
Related Dimethoxy Standards
- 2,3-Dimethoxy-6-methylanthracene-9,10-dione (CAS 105706-01-2)
- 3,9-Dimethoxy-6H-benzofuro[3,2-c]chromene (CAS 1433-08-5)
- 1,2-Dimethoxy-3-methylanthracene-9,10-dione (CAS 75313-49-4)
- 1,4-Dimethoxy-2-methylanthracene-9,10-dione (CAS 52541-72-7)
- 1,7-Dimethoxy-3-methylanthracene-9,10-dione (CAS 63561-76-2)
- 1,8-Dimethoxy-3-methylanthracene-9,10-dione (CAS 71013-35-9)
- 3,6-Dimethoxy-2-phenyl-4H-chromen-4-one (CAS 206121-28-0)
- 4,5-dimethoxy-2-{[(propan-2-yl)carbamoyl]amino}benzoic acid (CAS 400786-17-6)
Recommended Standards
- 6-(2,4-Dimethylphenyl)-3-methyl-[1,2]oxazolo[5,4-b]pyridine-4-carboxylic Acid (CAS 953731-77-6)
- 6,7-Dimethoxy-2-phenylquinazolin-4(3H)-one (CAS 371945-74-3)
- 5-Oxo-5-(3,4,5-trimethoxyphenyl)pentanoic acid (CAS 34759-04-1)
- 6-Formyl-4-((tetrahydro-2H-pyran-4-yl)oxy)quinoline-3-carbonitrile (CAS 872578-22-8)
- [[(2R,3S,5R)-5-(6-amino-2-fluoro-purin-9-yl)-3-hydroxy-tetrahydrofuran-2-yl]methoxy-hydroxy-phosphoryl] phosphono hydrogen phosphate (CAS 118405-60-0)
- 5-(Chlorodifluoromethyl)isoxazole (CAS 116611-76-8)
- N-Cyclohexyl-4-formylpiperazine-1-carboxamide (CAS 710333-76-9)
- 2-Methyl-N-(1-(pyridin-2-yl)ethyl)pentan-3-amine (CAS 1157691-65-0)
- 5-Benzyl-3-(3-bromophenyl)-1,2,4-oxadiazole (CAS 838882-01-2)
- 2-Ethoxypropanehydrazide hydrochloride (CAS 1049750-01-7)
- Ethyl 3,3-diphenylpropanoate (CAS 7476-18-8)
- 5-Chloro-2,4-dimethoxyphenol (CAS 18113-25-2)
- 6-Chloro-3-(2-chlorophenyl)-[1,2,4]triazolo[4,3-b]pyridazine (CAS 919725-28-3)
- Tau Peptide (274-288) trifluoroacetate salt (CAS 330456-39-8)
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