| CAS No. | 180973-24-4 |
| Molecular Formula | C26H26O3S |
| Molecular Weight | 418.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 418.55 g/mol gives (S,E)-3-Hydroxy-7-(tritylthio)hept-4-enoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(S,E)-3-Hydroxy-7-(tritylthio)hept-4-enoic acid (CAS 180973-24-4) is a high-purity analytical reference standard with the molecular formula C26H26O3S and a molecular weight of 418.55 g/mol.
Owing to a steroid core, a sulfone group, a hydroxyl group, an ether linkage, (S,E)-3-Hydroxy-7-(tritylthio)hept-4-enoic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 418.55 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C26H26O3S |
| Molecular Weight | 418.55 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2008 |
| Sulfur Atoms | 1 |