3-(3-Methylisoxazol-5-yl)-2-(2-nitrophenyl)quinazolin-4(3H)-one CAS 90059-41-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 90059-41-9 |
| Molecular Formula | C18H12N4O4 |
| Molecular Weight | 348.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(3-Methylisoxazol-5-yl)-2-(2-nitrophenyl)quinazolin-4(3H)-one (CAS 90059-41-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H12N4O4. Molecular weight: 348.31 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H12N4O4 |
| Molecular Weight | 348.31 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 4 |
Related Methylisoxazol Standards
- 3-(3-Methylisoxazol-5-yl)-2-(4-nitrophenyl)quinazolin-4(3H)-one (CAS 90059-42-0)
- N4-(5-Methylisoxazol-3-yl)-N1-(thiophen-2-ylmethyl)piperidine-1,4-dicarboxamide (CAS 1251548-50-1)
- N1-(5-Methylisoxazol-3-yl)-N2-(2-(pyrrolidin-1-yl)-2-(thiophen-3-yl)ethyl)oxalamide (CAS 946303-08-8)
- N-(5-Methylisoxazol-3-yl)-2-((3-(o-tolyl)-1,2,4-thiadiazol-5-yl)thio)acetamide (CAS 864918-94-5)
- 2-((5-Methylisoxazol-3-yl)amino)-2-oxoethyl 3,4,5-trimethoxybenzoate (CAS 736190-82-2)
- 4-((4-(N-(5-methylisoxazol-3-yl)sulfamoyl)phenyl)amino)-4-oxobutanoic acid (CAS 133071-57-5)
- N-(3-Methylisoxazol-5-yl)-1-(thiophen-2-ylsulfonyl)piperidine-3-carboxamide (CAS 1021250-26-9)
- (5-Methylisoxazol-3-yl)(4-(((4-methylthiazol-2-yl)thio)methyl)piperidin-1-yl)methanone (CAS 1428356-34-6)
Recommended Standards
- 2,4-toluene diisocyanate dimer (CAS 26747-90-0)
- 2,2'-((Oxybis(ethane-2,1-diyl))bis(oxy))bis(nitrobenzene) (CAS 54533-65-2)
- 3-[(4-Nitrophenyl)[(2-tetrahydropyranyl)oxy]methyl]isoxazole-4-carboxylic Acid (CAS 2006277-51-4)
- 2-Aminobutanenitrile (CAS 40651-89-6)
- 3-(2-Methylcyclopropyl)-4-(thiophen-2-yl)-1h-pyrazol-5-amine (CAS 1340597-78-5)
- N-(5-Formylthiazol-2-yl)acetamide (CAS 252662-37-6)
- N-(3,4-difluorophenyl)-3-(trifluoromethyl)benzamide (CAS 866143-03-5)
- (5-Cyclopropylisoxazol-4-yl)methanol (CAS 1896506-45-8)
- 1-(3-Azetidinyl)-N,N-dimethylmethanamine Dihydrochloride (CAS 321890-22-6)
- Allo-Thr5-Tirzepatide (CAS CATO-CPTD788934)
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