| CAS No. | 1453422-57-5 |
| Molecular Formula | C7H11NO3S |
| Molecular Weight | 189.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
9-hydroxy-4$l^{6}-thia-5-azatricyclo[4.2.1.0^{3,7}]nonane-4,4-dione (CAS 1453422-57-5), molecular formula C7H11NO3S and molecular weight 189.23 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 9-hydroxy-4$l^{6}-thia-5-azatricyclo[4.2.1.0^{3,7}]nonane-4,4-dione (C7H11NO3S) is characterized by an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
CATO manufactures 9-hydroxy-4$l^{6}-thia-5-azatricyclo[4.2.1.0^{3,7}]nonane-4,4-dione under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
| Molecular Formula | C7H11NO3S |
| Molecular Weight | 189.23 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1992 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |