| CAS No. | 178755-54-9 |
| Molecular Formula | C10H9NO5S |
| Molecular Weight | 255.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 255.25 g/mol gives 2-(1,1-Dioxido-3-oxo-1,2-benzisothiazol-2(3H)-yl)propanoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-(1,1-Dioxido-3-oxo-1,2-benzisothiazol-2(3H)-yl)propanoic acid (CAS 178755-54-9) is a high-purity analytical reference standard with the molecular formula C10H9NO5S and a molecular weight of 255.25 g/mol.
Based on its molecular formula C10H9NO5S, 2-(1,1-Dioxido-3-oxo-1,2-benzisothiazol-2(3H)-yl)propanoic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 255.25 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
CATO manufactures 2-(1,1-Dioxido-3-oxo-1,2-benzisothiazol-2(3H)-yl)propanoic acid 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 | C10H9NO5S |
| Molecular Weight | 255.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2008 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |