2,5-Dimethyl-3,4-diphenylcyclopent-2-en-1-one CAS 16643-55-3
| CAS No. | 16643-55-3 |
| Molecular Formula | C19H18O |
| Molecular Weight | 262.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2,5-Dimethyl-3,4-diphenylcyclopent-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.
2,5-Dimethyl-3,4-diphenylcyclopent-2-en-1-one (CAS 16643-55-3) is a high-purity analytical reference standard with the molecular formula C19H18O and a molecular weight of 262.35 g/mol.
Structurally, 2,5-Dimethyl-3,4-diphenylcyclopent-2-en-1-one (C19H18O) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 262.35 g/mol, it falls into the medium-molecular-weight range. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C19H18O |
| Molecular Weight | 262.35 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
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Recommended Standards
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- 3-(4-(((9h-Fluoren-9-yl)methoxy)carbonyl)morpholin-3-yl)propanoic acid (CAS 885274-10-2)
- Benzyl 2-((2-aminoacetamido)methyl)piperidine-1-carboxylate (CAS 1353982-62-3)
- 2-Bromo-N-(3,4-dimethylphenyl)acetamide (CAS 349120-87-2)
- 3-Fluoro-2-methoxybenzaldehyde (CAS 74266-68-5)
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- 3-Neopentyl-1H-pyrazole (CAS 29075-47-6)
- Lurasidone Metabolite 14326 (CAS CATO-C1430714)
- [D-His1]-Semaglutide (CAS CATO-C4X-2226127)
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