5-Ethyl-3-methylisoxazole-4-carbonyl chloride CAS 144272-76-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 144272-76-4 |
| Molecular Formula | C7H8ClNO2 |
| Molecular Weight | 173.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Ethyl-3-methylisoxazole-4-carbonyl chloride (CAS 144272-76-4) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C7H8ClNO2. Molecular weight: 173.60 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C7H8ClNO2 |
| Molecular Weight | 173.60 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
- 3-Ethyl-5-methylisoxazole-4-carbonyl chloride (CAS 99298-90-5)
- 3-Ethyl-5-methylisoxazole-4-carbohydrazide (CAS 1094733-72-8)
- 5-Methylisoxazole-3,4-dicarboxamide (CAS 400077-37-4)
- 3-Methylisoxazole-4-sulfonyl chloride (CAS 858489-87-9)
- 3-Butyl-5-methylisoxazole-4-carboxylic acid (CAS 1408451-86-4)
- Butyl 3-methylisoxazole-5-carboxylate (CAS 85153-59-9)
- Butyl 5-methylisoxazole-3-carboxylate (CAS 85168-94-1)
- 3-Methylisoxazole-4-sulfonic acid (CAS 747406-57-1)
Recommended Standards
- (3,5-dimethylisoxazol-4-yl)acetyl chloride (CAS 144102-13-6)
- 2-chloro-1-(dimethyl-1,3-oxazol-5-yl)ethan-1-one (CAS 1512604-21-5)
- (2-Chloro-4-(methylamino)pyrimidin-5-yl)methanol (CAS 1428760-93-3)
- Trichloroethyl Phosphate Cyclohexylamine (CAS 17331-54-3)
- 4-Bromo-3-(difluoromethyl)-2-fluoro-6-(trifluoromethyl)pyridine (CAS 1806903-73-0)
- (S)-2-(Sec-butyl)-4,5-dihydrothiazole (CAS 250359-27-4)
- 3-Chloro-4-cyclohexylbenzoic acid (CAS 42601-80-9)
- N-METHYL-2-FLUORO-4-IODOBENZAMIDE (CAS 1351185-56-2)
- 4-Bromo-5-methylpyridazine (CAS 1368375-27-2)
- Anti-Inflammatory Peptide 2 (CAS 118850-72-9)
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