| CAS No. | 80549-03-7 |
| Molecular Formula | C4H10O4S |
| Molecular Weight | 154.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
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.
CATO supplies Tenofovir Impurity 165 (CAS 80549-03-7), a certified reference material (molecular formula C4H10O4S, MW 154.18 g/mol) for analytical method development and quality control.
Owing to a carbohydrate-derived structure, a sulfone group, Tenofovir Impurity 165 is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 154.18 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
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 | C4H10O4S |
| Molecular Weight | 154.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1980 |
| Sulfur Atoms | 1 |