6-Chloro-3-methylbenzo[d]thiazol-2(3H)-one CAS 63754-98-3
| CAS No. | 63754-98-3 |
| Molecular Formula | C8H6ClNOS |
| Molecular Weight | 199.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-Chloro-3-methylbenzo[d]thiazol-2(3H)-one (C8H6ClNOS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
6-Chloro-3-methylbenzo[d]thiazol-2(3H)-one (CAS 63754-98-3), molecular formula C8H6ClNOS and molecular weight 199.66 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C8H6ClNOS |
| Molecular Weight | 199.66 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1975 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 1-(1,2,4,5-Tetramethyl-1H-pyrrol-3-yl)ethanone (CAS 52649-29-3)
- N-(2-Butoxybenzyl)-3-chloro-4-methoxyaniline (CAS 1040685-78-6)
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