4-Nitroisoxazole CAS 1121-13-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1121-13-7 |
| Molecular Formula | C3H2N2O3 |
| Molecular Weight | 114.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order 4-Nitroisoxazole (CAS 1121-13-7) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C3H2N2O3. Molecular weight: 114.06 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C3H2N2O3 |
| Molecular Weight | 114.06 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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 |
Related Nitroisoxazole Standards
- 3-Nitroisoxazole (CAS 39485-31-9)
- 3-Methyl-4-nitroisoxazole (CAS 1122-05-0)
- 5-Methyl-4-nitroisoxazole (CAS 1122-06-1)
- 3-Methyl-4-nitroisoxazole-5-carbaldehyde (CAS 6436-64-2)
- 3-Nitroisoxazole-5-carboxamide (CAS 1224594-00-6)
- 5-Nitroisoxazole-3-carboxylic acid (CAS 1368191-38-1)
- Methyl 5-nitroisoxazole-3-carboxylate (CAS 1367269-14-4)
- 3-Methyl-4-nitroisoxazole-5-carboxylic acid (CAS 89282-13-3)
Recommended Standards
- Norflurane EP Impurity KK (CAS 754-12-1)
- Parabanic acid (CAS 120-89-8)
- 1,1,3,3-Tetrafluoropropene (CAS 4556-24-5)
- 4-{6-Bromo-[1,2,4]triazolo[4,3-a]pyridin-3-yl}pyridine (CAS 1082346-08-4)
- 3-(7-Bromo-1H-benzo[de]cinnolin-1-yl)piperidine-2,6-dione (CAS 2767588-59-8)
- 4-(Chloromethyl)-2-methylheptane (CAS 1491517-12-4)
- (2-{5-[(2,4-Difluorophenoxy)methyl]-1,2,4-oxadiazol-3-yl}ethyl)methylamine hydrochloride (CAS 1332529-66-4)
- 2-(2-(4-Nitrophenoxy)ethyl)isoindoline-1,3-dione (CAS 98395-61-0)
- n-((1,5-Dimethyl-1h-pyrazol-4-yl)methyl)-1-methoxybutan-2-amine (CAS 1512566-97-0)
- Semaglutide impurity 277 (CAS CATO-C4X-2226277)
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