(E/Z)-1-[4-(2-Chloroethoxy)phenyl]-2-(4-hydroxyphenyl)-1-phenyl-1-butene CAS 1276031-01-6
| CAS No. | 1276031-01-6 |
| Molecular Formula | C24H23ClO2 |
| Molecular Weight | 378.89 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.
(E/Z)-1-[4-(2-Chloroethoxy)phenyl]-2-(4-hydroxyphenyl)-1-phenyl-1-butene (CAS 1276031-01-6), molecular formula C24H23ClO2 and molecular weight 378.89 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C24H23ClO2, (E/Z)-1-[4-(2-Chloroethoxy)phenyl]-2-(4-hydroxyphenyl)-1-phenyl-1-butene contains a steroid core, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 378.89 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C24H23ClO2 |
| Molecular Weight | 378.89 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
Recommended Standards
- (E/Z)-1-[4-(2-Chloroethoxy)phenyl]-1-(4-hydroxyphenyl)-2-phenyl-1-butene (CAS 119757-57-2)
- ospemifene (CAS 128607-22-7)
- N-((1H-Indol-2-yl)methyl)-6-chloro-5-ethyl-2-((methylsulfonyl)methyl)pyrimidin-4-amine (CAS 1787908-29-5)
- 2,3-Dibromo-6-(bromomethyl)naphthalene (CAS 132112-62-0)
- 1-(3-Bromo-4-methoxy-phenyl)-propylamine hydrochloride (CAS 1039981-52-6)
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- 2-Ethyl-5-hydroxybenzonitrile (CAS 1243287-70-8)
- 2-(Chloromethyl)-4-cyano-5-(difluoromethyl)-3-methylpyridine (CAS 1805291-77-3)
- 3-(hydroxymethyl)-5-phenylpyridin-2-ol (CAS 1227591-01-6)
- 2-Amino-2-(4-phenoxyphenyl)ethan-1-ol oxalate (CAS 1177277-28-9)
- Peptide-GMF (CAS CATO-CPTD788469)
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