1,3-Bis(4-methoxyphenyl)-2-methylpropane-1,3-dione CAS 95691-32-0
| CAS No. | 95691-32-0 |
| Molecular Formula | C18H18O4 |
| Molecular Weight | 298.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1,3-Bis(4-methoxyphenyl)-2-methylpropane-1,3-dione is closely related to a flavonoid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1,3-Bis(4-methoxyphenyl)-2-methylpropane-1,3-dione (CAS 95691-32-0) is a high-purity analytical reference standard with the molecular formula C18H18O4 and a molecular weight of 298.33 g/mol.
1,3-Bis(4-methoxyphenyl)-2-methylpropane-1,3-dione (C18H18O4) contains a flavonoid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1,3-Bis(4-methoxyphenyl)-2-methylpropane-1,3-dione 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 | C18H18O4 |
| Molecular Weight | 298.33 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
Related Bis Standards
- 1,4-Bis(4-methoxyphenyl)butane-1,4-dione (CAS 15982-64-6)
- 1,3-Bis(3-methoxyphenyl)-2-methylpropane-1,3-dione (CAS 832740-16-6)
- 4-Methoxyphenyl 4-(but-3-en-1-yloxy)benzoate (CAS 76487-56-4)
- N1-(4-Methoxyphenyl)-N2-(2-methylbenzyl)oxalamide (CAS 861234-78-8)
- Ethyl 1-((3-methoxyphenyl)sulfonyl)cyclobutane-1-carboxylate (CAS 2169906-77-6)
- 3-[7-(3-methoxyphenyl)-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl]propanoic acid (CAS 1119499-77-2)
- (2E)-2-{[(4-methoxyphenyl)amino]methylidene}-3,4-dihydro-2H-1,4-benzothiazin-3-one (CAS 41526-87-8)
- 2-(4-Methoxyphenyl)-5-[2-(methylsulfanyl)phenyl]-1,3,4-oxadiazole (CAS 339014-12-9)
Recommended Standards
- 1,4,5,8-Tetramethoxyanthracene (CAS 93878-10-5)
- 1,2,4,9-Tetramethoxyanthracene (CAS 834867-33-3)
- 10-(4-Hydroxybenzylidene)anthracen-9(10H)-one (CAS 69544-83-8)
- 1-(o-Tolyl)anthracene-9,10-dione (CAS 20600-72-0)
- 2-(4-Cyanobenzoyl)oxazole (CAS 898759-91-6)
- 2-(4-(Difluoromethyl)-6-(4-fluorophenyl)-3-methyl-1h-pyrazolo[3,4-b]pyridin-1-yl)acetic acid (CAS 937607-14-2)
- 4-Butoxy-N-[4-(isopentyloxy)benzyl]aniline (CAS 1040687-57-7)
- 4-Methoxy-3-[(3-methyl-4-nitrophenoxy)methyl]-benzaldehyde (CAS 329222-76-6)
- 2-(5-Bromo-2-(difluoromethyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2377608-23-4)
- 1-Fluoro-4-(propane-2-sulfonyl)benzene (CAS 70399-09-6)
- tert-Butyl(isopropoxy)dimethylsilane (CAS 17348-66-2)
- 3-(tert-Butoxycarbonyl)prop-1-enylboronicacid (CAS 931402-51-6)
- 3,5-Diethyl-4-hydroxybenzaldehyde (CAS 69574-07-8)
- Tirzepatide Impurity 17 (CAS CATO-C4X-324017)
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