| CAS No. | 110718-88-2 |
| Molecular Formula | C9H9NS |
| Molecular Weight | 163.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 163.24 g/mol gives 3,7-Dimethylbenzo[d]isothiazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3,7-Dimethylbenzo[d]isothiazole (CAS 110718-88-2) is a high-purity analytical reference standard with the molecular formula C9H9NS and a molecular weight of 163.24 g/mol.
The molecular framework of 3,7-Dimethylbenzo[d]isothiazole (C9H9NS) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3,7-Dimethylbenzo[d]isothiazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
| Molecular Formula | C9H9NS |
| Molecular Weight | 163.24 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |