1-(4-Nitroisoxazol-3-yl)ethanone CAS 550301-44-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 550301-44-5 |
| Molecular Formula | C5H4N2O4 |
| Molecular Weight | 156.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(4-Nitroisoxazol-3-yl)ethanone (CAS 550301-44-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H4N2O4. Molecular weight: 156.10 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C5H4N2O4 |
| Molecular Weight | 156.10 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 2 |
Related Nitroisoxazol Standards
- 1-(3-Nitroisoxazol-5-yl)ethanone (CAS 54468-91-6)
- 1-(4-Nitroisoxazol-5-yl)ethanone (CAS 518994-53-1)
- 1-(5-Nitroisoxazol-3-yl)ethanone (CAS 340014-77-9)
- 2-(4-Nitroisoxazol-3-yl)acetaldehyde (CAS 87149-77-7)
- 2-Methyl-4-nitroisoxazol-5(2H)-one (CAS 138842-45-2)
- 3-Methyl-4-nitroisoxazol-5-amine (CAS 41230-51-7)
- 4-Nitroisoxazol-5(2H)-one (CAS 145440-80-8)
- 4-Nitroisoxazol-5-amine (CAS 861543-32-0)
Recommended Standards
- (R)-4,4,4-Trifluoro-3-methylbutanoic acid (CAS 835629-56-6)
- (R)-4,4,4-Trifluoro-3-hydroxy-3-methylbutan-2-one (CAS 2875067-31-3)
- 1,1,1-Trifluoropropan-2-yl acetate (CAS 400-37-3)
- 3-Amino-4-benzylisoxazol-5(4H)-one (CAS 6940-69-8)
- (R)-N,N,N',N'-Tetramethyl-1,1'-binaphthyldiamine (CAS 135029-77-5)
- N-(6-Methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)benzamide (CAS 591726-19-1)
- (R)-2-Amino-2-(p-tolyl)ethanol hydrochloride (CAS 1391439-16-9)
- Potassium (2-(4-(tert-butoxycarbonyl)piperazin-1-yl)-3-chloropyridin-4-yl)trifluoroborate (CAS 1704704-41-5)
- 2-((4-(2-Methoxyphenyl)piperazin-1-yl)methyl)-6-methyl-2,3-dihydroimidazo[1,2-c]quinazolin-5(6H)-one (CAS 149847-77-8)
- [D-Glu]3-Semaglutide (CAS CATO-C4X-2226253)
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