| CAS No. | 89579-71-5 |
| Molecular Formula | C5H8O3S |
| Molecular Weight | 148.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-Oxa-6-thiaspiro[3.3]heptane 6,6-dioxide.
2-Oxa-6-thiaspiro[3.3]heptane 6,6-dioxide (CAS 89579-71-5), molecular formula C5H8O3S and molecular weight 148.18 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-Oxa-6-thiaspiro[3.3]heptane 6,6-dioxide (C5H8O3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 148.18 g/mol, it falls into the low-molecular-weight range.
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 | C5H8O3S |
| Molecular Weight | 148.18 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) | 2.0 |
| CAS Registry Year (est.) | 1982 |
| Sulfur Atoms | 1 |