1-Ethoxy-4-((4-ethylphenyl)ethynyl)benzene CAS 258283-96-4
| CAS No. | 258283-96-4 |
| Molecular Formula | C18H18O |
| Molecular Weight | 250.33 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.
1-Ethoxy-4-((4-ethylphenyl)ethynyl)benzene (CAS 258283-96-4), molecular formula C18H18O and molecular weight 250.33 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1-Ethoxy-4-((4-ethylphenyl)ethynyl)benzene (C18H18O) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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), 1-Ethoxy-4-((4-ethylphenyl)ethynyl)benzene 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 | C18H18O |
| Molecular Weight | 250.33 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | 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.) | 2025 |
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Recommended Standards
- 1-Cyclohexene-1-carboxylic acid, 4-(1,5-dimethyl-3-oxo-1-hexenyl)-, [R-(E)]- (CAS 93888-59-6)
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- Ethyl 3-fluoro-4-(methylamino)benzoate (CAS 1256502-64-3)
- (D-Ala2)-Gastric Inhibitory Polypeptide (human) trifluoroacetate salt (CAS 444073-04-5)
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