3-Methyl-4-nitro-5-(4-nitrostyryl)isoxazole CAS 78080-53-2
| CAS No. | 78080-53-2 |
| Molecular Formula | C12H9N3O5 |
| Molecular Weight | 275.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
CATO supplies 3-Methyl-4-nitro-5-(4-nitrostyryl)isoxazole (CAS 78080-53-2), a certified reference material (molecular formula C12H9N3O5, MW 275.22 g/mol) for analytical method development and quality control.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 3-Methyl-4-nitro-5-(4-nitrostyryl)isoxazole is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 275.22 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H9N3O5 |
| Molecular Weight | 275.22 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Nitrogen Atoms | 3 |
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- 2-(6-Chloro-2-oxo-1H-purin-9(2H)-yl)acetic acid (CAS 672961-85-2)
- 3,6-Dibromo-2-isopropylpyrazolo[1,5-a]pyridine (CAS 141401-54-9)
- Methyl 3-(4-Methyl-2,5-dioxo-4-imidazolidinyl)propanoate (CAS 1418117-76-6)
- (5-Bromo-1H-imidazol-2-yl)methanamine (CAS 944903-88-2)
- 3-(4-Hydroxyphenyl)propyl Acetate (CAS 80373-18-8)
- 2-(Azepan-1-yl)-4-chloroquinazoline (CAS 134961-18-5)
- S6677 (CAS 1889344-13-1)
- Insulin B (22-25) (CAS 34367-73-2)
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