| CAS No. | 1182-65-6 |
| Molecular Formula | C34H52O3S |
| Molecular Weight | 540.84 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of 5-CHOLESTEN-3β-OL P-TOLUENESULPHONATE is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-CHOLESTEN-3β-OL P-TOLUENESULPHONATE (CAS 1182-65-6), molecular formula C34H52O3S and molecular weight 540.84 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system, 5-CHOLESTEN-3β-OL P-TOLUENESULPHONATE is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 540.84 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C34H52O3S |
| Molecular Weight | 540.84 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Sulfur Atoms | 1 |