| CAS No. | 65355-33-1 |
| Molecular Formula | C18H32O2 |
| Molecular Weight | 280.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
trans-4-Pentyl-(1,1-bicyclohexyl)-4-carboxylic acid (CAS 65355-33-1) is a high-purity analytical reference standard with the molecular formula C18H32O2 and a molecular weight of 280.45 g/mol.
Structurally, trans-4-Pentyl-(1,1-bicyclohexyl)-4-carboxylic acid (C18H32O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 280.45 g/mol, it falls into the medium-molecular-weight range. 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.
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.
| Molecular Formula | C18H32O2 |
| Molecular Weight | 280.45 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1975 |