2-(2,4-Dimethoxyphenyl)-6-methoxychroman-4-one CAS 720675-90-1
| CAS No. | 720675-90-1 |
| Molecular Formula | C18H16O5 |
| Molecular Weight | 312.32 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.
2-(2,4-Dimethoxyphenyl)-6-methoxychroman-4-one (CAS 720675-90-1), molecular formula C18H16O5 and molecular weight 312.32 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C18H16O5, 2-(2,4-Dimethoxyphenyl)-6-methoxychroman-4-one contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 312.32 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
As a certified reference material (CRM), 2-(2,4-Dimethoxyphenyl)-6-methoxychroman-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 | 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.) | 1986 |
Related Dimethoxyphenyl Standards
- 6-(2,4-Dimethoxyphenyl)-7-methyl-[1,3]dioxolo[4,5-f]benzofuran (CAS 116310-57-7)
- (E)-4-(3-(3,4-Dimethoxyphenyl)-3-oxoprop-1-en-1-yl)benzoic acid (CAS 119568-10-4)
- 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)
- (E)-4-(3-(2,4-Dimethoxyphenyl)-3-oxoprop-1-en-1-yl)benzoic acid (CAS 1638521-29-5)
- 1-(2,5-Dimethoxyphenyl)-2-methyl-1H-benzo[d]imidazole-5-carboxylic acid (CAS 442531-50-2)
- 2-(3,4-Dimethoxyphenyl)-3-hydroxy-6-methyl-4H-1-benzopyran-4-one (CAS 93097-20-2)
- 3-(3,4-Dimethoxyphenyl)-1-methylquinazoline-2,4(1H,3H)-dione (CAS 531504-03-7)
Recommended Standards
- 2-(2-(1,3,4-Oxadiazol-2-yl)-1H-indol-1-yl)-1-morpholinoethan-1-one (CAS 955602-12-7)
- 2-(1,3-Dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)-N-(3-hydroxypropyl)acetamide (CAS 300815-66-1)
- 2-(4-(3-Carboxypropyl)benzoyl)benzoic acid (CAS 80866-86-0)
- 2-((2-(4-Methoxyphenyl)-1H-benzo[d]imidazol-1-yl)oxy)propanoic acid (CAS 329234-79-9)
- 4-amino-1-(4-chloro-3-fluorophenyl)pyrrolidin-2-one (CAS 1251305-56-2)
- 7-Bromophthalazin-1(2H)-one, 97% (CAS 152265-57-1)
- 1-(5-Chloro-2-methoxyphenyl)propan-2-one (CAS 1250983-17-5)
- Terbutaline Impurity 53 (CAS 51863-60-6)
- pyrrolidine-2-thione (CAS 2295-35-4)
- 1142205-85-3 9358AC C17H24N2O4 {(4-Methoxyphenyl)[2-(3-methylpiperidin-1-yl)-2-oxoethyl]amino}acetic acid (CAS 1142205-85-3)
- 3-Cyclobutoxypropan-1-ol (CAS 1194835-18-1)
- 3-(1,3,5-Trimethyl-1h-pyrazol-4-yl)propanoic acid (CAS 956352-96-8)
- 1-(3,5-Bis(trifluoromethyl)benzyl)-N-methyl-2-oxo-1,2-dihydropyridine-3-carboxamide (CAS 338782-03-9)
- Tirzepatide Impurity 61 (CAS CATO-C4X-324061)
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