3-Chloro-7-methylbenzo[d]isothiazole CAS 19331-21-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 19331-21-6 |
| Molecular Formula | C8H6ClNS |
| Molecular Weight | 183.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Chloro-7-methylbenzo[d]isothiazole (CAS 19331-21-6) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C8H6ClNS. Molecular weight: 183.66 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C8H6ClNS |
| Molecular Weight | 183.66 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 |
| 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.) | 1962 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
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- 5-Chloro-2-methylbenzothiazole (CAS 1006-99-1)
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- 4-Chloro-6-methyl-thieno[2,3-b]pyridine (CAS 1824285-22-4)
- 2-Chloro-6-methylphenyl isothiocyanate (CAS 19241-34-0)
Recommended Standards
- 3-Chloro-4-methylphenyl Isothiocyanate (CAS 19241-37-3)
- 1-Allylpiperazin-2-one (CAS 59702-24-8)
- 5-Chloro-2-methylphenyl isothiocyanate (CAS 19241-36-2)
- 4-Methoxy-3-(4-methylpiperazin-1-yl)benzoic acid hydrochloride (CAS 1417637-15-0)
- methyl 6-thiomorpholinopyridazine-3-carboxylate (CAS 1797161-20-6)
- N-(5-(4-Fluorobenzyl)-1,3,4-oxadiazol-2-yl)-2-phenoxyacetamide (CAS 954598-70-0)
- N-(4-chlorobenzyl)-1-methyl-1H-tetrazol-5-amine (CAS 331851-56-0)
- 3,3-diethoxy-1-propanol (CAS 16777-87-0)
- N-(3-Azidopropyl)-4-(2,6-di-tert-butyl-4-(6-(4-methylpiperazin-1-yl)-1H-benzo[d]imidazol-2-yl)phenoxy)butanamide (CAS 1311982-88-3)
- Tirzepatide Impurity 35 (CAS CATO-C4X-324035)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com