| CAS No. | 170283-02-0 |
| Molecular Formula | C4H5NOS |
| Molecular Weight | 115.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 115.15 g/mol gives Isothiazol-4-ylmethanol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Isothiazol-4-ylmethanol (CAS 170283-02-0) is a high-purity analytical reference standard with the molecular formula C4H5NOS and a molecular weight of 115.15 g/mol.
The molecular framework of Isothiazol-4-ylmethanol (C4H5NOS) is characterized by an amide group, sulfur-containing functionality, 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).
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 Isothiazol-4-ylmethanol 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 | C4H5NOS |
| Molecular Weight | 115.15 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2005 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |