3-Methyl-4-nitro-isothiazole CAS 1073-18-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1073-18-3 |
| Molecular Formula | C4H4N2O2S |
| Molecular Weight | 144.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 3-Methyl-4-nitro-isothiazole (CAS 1073-18-3) pharmaceutical standards reference standard. Molecular formula: C4H4N2O2S. Molecular weight: 144.15 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C4H4N2O2S |
| Molecular Weight | 144.15 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 3-(2-Fluoropropan-2-yl)isoxazol-5-amine (CAS 1049677-76-0)
- 5-Methyl-4-nitroisothiazole (CAS 1073-19-4)
- 4-Thioxotetrahydropyrimidine-2,5-dione (CAS 101559-68-6)
- 3-(4-(Benzyloxy)pyridin-3-yl)prop-2-yn-1-ol (CAS 1203498-96-7)
- Felbamate (CAS 25451-15-4)
- 1-(difluoromethyl)-1H-indol-4-amine (CAS 1429043-06-0)
- 1-(Benzo[d][1,3]dioxol-5-yl)-N-(pyridin-4-ylmethyl)methanamine (CAS 353779-52-9)
- 7-Methoxybenzofuran-2(3H)-one (CAS 28033-41-2)
- Sibutramine Impurity 8 (CAS CATO-C4X-18538)
- Semaglutide Impurity 183 (CAS 159541-28-3)
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