(2E)-1-(2,4-Dimethylphenyl)-3-(4-methoxyphenyl)prop-2-en-1-one CAS 71994-19-9
| CAS No. | 71994-19-9 |
| Molecular Formula | C18H18O2 |
| Molecular Weight | 266.33 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.
(2E)-1-(2,4-Dimethylphenyl)-3-(4-methoxyphenyl)prop-2-en-1-one (CAS 71994-19-9), molecular formula C18H18O2 and molecular weight 266.33 g/mol, is a CATO reference standard with documented purity and traceability.
(2E)-1-(2,4-Dimethylphenyl)-3-(4-methoxyphenyl)prop-2-en-1-one (C18H18O2) contains a steroid 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.
As a certified reference material (CRM), (2E)-1-(2,4-Dimethylphenyl)-3-(4-methoxyphenyl)prop-2-en-1-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 | C18H18O2 |
| Molecular Weight | 266.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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.) | 1977 |
Related E Standards
- 1,2-Bis(3,5-dimethylphenyl)-1,2-ethanedione (CAS 101789-41-7)
- (2E)-1-(2,4-Dimethylphenyl)-3-(2-methoxyphenyl)prop-2-en-1-one (CAS 1287195-22-5)
- (2E)-1-(2,4-Dimethylphenyl)-3-(3-methoxyphenyl)prop-2-en-1-one (CAS 926537-15-7)
- 1-(2,5-dimethylphenyl)-1H-1,3-benzodiazole-5-carboxylic acid (CAS 1153985-53-5)
- 2-((2,4-Dimethylphenyl)amino)isoindoline-1,3-dione (CAS 1198287-22-7)
- 1-(2,4-dimethylphenyl)-1{H}-benzimidazole-5-carboxylic acid (CAS 452088-78-7)
- 1-(3,5-Dimethylphenyl)-1H-benzimidazole-5-carboxylic acid (CAS 442531-63-7)
- 3-(2,4-Dimethylphenyl)quinazoline-2,4(1H,3H)-dione (CAS 60974-88-1)
Recommended Standards
- (2E)-1-(4-Ethylphenyl)-3-(4-methoxyphenyl)prop-2-en-1-one (CAS 864784-20-3)
- (1R,4S,5AS,9aS)-1,4-dihydroxy-6,6,9a-trimethyl-4,5,5a,6,7,8,9,9a-octahydronaphtho[1,2-c]furan-3(1H)-one (CAS 6750-10-3)
- (2E)-3-(2-Ethoxyphenyl)-1-(4-methylphenyl)prop-2-en-1-one (CAS 39059-94-4)
- (1E,3E)-1,4-bis(4-methoxyphenyl)buta-1,3-diene (CAS 43212-67-5)
- (S)-1-oxo-2-azaspiro[4.4]Nonane-3-carboxylic acid (CAS 2306250-11-1)
- Tert-butyl ((4-(hydroxymethyl)bicyclo[2.2.2]Octan-1-yl)methyl)carbamate (CAS 916210-37-2)
- 6-Methylbenzo[b]naphtho[2,1-d]thiophene (CAS 4567-51-5)
- 3-Hydroxy-5,5-dimethyl-2-(o-tolyldiazenyl)cyclohex-2-en-1-one (CAS 64380-33-2)
- 5-Bromo-2-(2,2,2-trifluoroethoxy)pyridine (CAS 126728-58-3)
- 4-Methyl-N'-(3-(trifluoromethyl)quinoxalin-2-yl)benzenesulfonohydrazide (CAS 338773-20-9)
- 3-(4,5-Dibromofuran-2-yl)prop-2-en-1-amine (CAS 1344885-08-0)
- Methyl 6-bromo-[1,2,4]triazolo[1,5-a]pyridine-7-carboxylate (CAS 2565646-89-9)
- 2-Amino-6-mercaptopurine-13C2,15N (CAS 1330266-29-9)
- Semaglutide impurity 248 (CAS CATO-C4X-2226248)
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