| CAS No. | 85392-92-3 |
| Molecular Formula | C8H15NOS |
| Molecular Weight | 173.28 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 9-Oxa-1-thia-4-azaspiro[5.5]Undecane.
9-Oxa-1-thia-4-azaspiro[5.5]Undecane (CAS 85392-92-3) is a high-purity analytical reference standard with the molecular formula C8H15NOS and a molecular weight of 173.28 g/mol.
Owing to an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, 9-Oxa-1-thia-4-azaspiro[5.5]Undecane is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 173.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C8H15NOS |
| Molecular Weight | 173.28 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1981 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |