4-Methylbenzo[c]isothiazole CAS 20728-41-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 20728-41-0 |
| Molecular Formula | C8H7NS |
| Molecular Weight | 149.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Methylbenzo[c]isothiazole (CAS 20728-41-0), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C8H7NS. Molecular weight: 149.21 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C8H7NS |
| Molecular Weight | 149.21 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.) | 1962 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methylbenzo Standards
- 4-Methylbenzo[d]isothiazole (CAS 1246021-75-9)
- 7-Methylbenzo[d]isothiazole (CAS 1352891-75-8)
- 5-Methylbenzo[c]isothiazole (CAS 56910-95-3)
- 5-Methylbenzo[d]isothiazole (CAS 41918-06-3)
- 6-Methylbenzo[d]thiazole (CAS 2942-15-6)
- 7-Methylbenzo[d]thiazole, 97% (CAS 3048-47-3)
- 2-Methylbenzo[d]oxazol-6-ol (CAS 5078-07-9)
- 3-Methylbenzo[d]isoxazol-5-ol (CAS 214760-36-8)
Recommended Standards
- 4-Bromo-2-(difluoromethyl)-thiophene (CAS 463946-41-0)
- 4-Methylbenzothiazole (CAS 3048-48-4)
- 4-Aminotetrahydrothiopyran 1,1-Dioxide (CAS 210240-20-3)
- Methyl 2,5-dibromothiazole-4-carboxylate (CAS 914347-25-4)
- 2,2-difluorocyclopentanol (CAS 1545583-60-5)
- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (5-propylthiazol-4-yl)boronate (CAS 2223039-22-1)
- 7-Bromo-2-(methoxymethyl)-2,3-dihydropyrazolo[5,1-b]oxazole (CAS 2676865-34-0)
- (1s,5r)-6-Azabicyclo[3.2.1]octane-5-carboxylic acid hydrochloride (CAS 882182-41-4)
- Nebivolol Impurity 21 (CAS 914207-85-5)
- Mast Cell Degranulating Peptide (CAS 83856-13-7)
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