Isothiazol-3-ylmethanol CAS 89033-17-0
| CAS No. | 89033-17-0 |
| Molecular Formula | C4H5NOS |
| Molecular Weight | 115.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Isothiazol-3-ylmethanol (CAS 89033-17-0) 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-3-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).
As a certified reference material (CRM), Isothiazol-3-ylmethanol 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.
Physical & Chemical Properties
| 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.) | 1982 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Isothiazol Standards
- Isothiazol-4-ylmethanol (CAS 170283-02-0)
- Isothiazol-5-yl-methanol (CAS 1710-66-3)
- Isothiazol-4-ylmethanamine (CAS 1083246-51-8)
- Isothiazol-5-ylmethanamine (CAS 1246548-62-8)
- 2-(Isothiazol-3-yl)acetonitrile (CAS 14217-70-0)
- 1-(Isothiazol-3-yl)ethan-1-one (CAS 88511-35-7)
- 1-Isothiazol-4-yl-ethanone (CAS 88511-36-8)
- 1-(Isothiazol-5-yl)-N-methylmethanamine (CAS 1284196-75-3)
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