(4E)-3-(Chloromethyl)-4-(2-methylbenzylidene)-isoxazol-5(4H)-one 1142199-39-0 9239AC C12H10ClNO2 CAS 1142199-39-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1142199-39-0 |
| Molecular Formula | C12H10ClNO2 |
| Molecular Weight | 235.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(4E)-3-(Chloromethyl)-4-(2-methylbenzylidene)-isoxazol-5(4H)-one 1142199-39-0 9239AC C12H10ClNO2 (CAS 1142199-39-0) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C12H10ClNO2. Molecular weight: 235.67 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C12H10ClNO2 |
| Molecular Weight | 235.67 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related E Standards
- (4E)-3-(Chloromethyl)-4-(3-methylbenzylidene)-isoxazol-5(4H)-one 1142199-42-5 9240AC C12H10ClNO2 (CAS 1142199-42-5)
- (E)-3-(chloromethyl)-4-(4-methylbenzylidene)isoxazol-5(4H)-one (CAS 1142199-45-8)
- 2-(Chloromethyl)-5-hydroxy-1-phenylpyridin-4(1H)-one (CAS 1823540-32-4)
- 4-(Chloromethyl)-N-(1H-pyrazol-4-yl)benzamide (CAS 916791-22-5)
- 6-(Chloromethyl)-2-N-phenyl-1,3,5-triazine-2,4-diamine (CAS 30355-60-3)
- 3-(Chloromethyl)-6-isopropylquinolin-2(1H)-one (CAS 1017347-07-7)
- 8-(Chloromethyl)-3-cyclopentyl-[1,2,4]triazolo[4,3-a]pyridine (CAS 1206970-31-1)
- 4-(Chloromethyl)-2-(2,4-dimethylphenyl)-5-methyl-1,3-oxazole (CAS 1280575-18-9)
Recommended Standards
- 4-((5-Chloropyrimidin-2-yl)oxy)-3-methylaniline (CAS 111986-56-2)
- n-(2-Chlorobenzyl)-1h-imidazole-1-carboxamide (CAS 1087788-45-1)
- 6-Chloro-3-methyl-3,5-dihydroimidazo[2,1-b]quinazolin-2(1H)-one (CAS 105622-85-3)
- 2-Chloro-n-ethyl-n-(2-methylprop-2-en-1-yl)propanamide (CAS 1016790-17-2)
- 2-(Chloromethyl)-6-(difluoromethyl)-4-iodo-3-methoxypyridine (CAS 1805258-09-6)
- Rimegepant Impurity 58 (CAS 1373116-06-3)
- 3-[5-methyl-3-(trifluoromethyl)-1h-pyrazol-1-yl]propanoic acid (CAS 925606-77-5)
- 10-(4'-(Diphenylamino)-[1,1'-biphenyl]-4-yl)acridin-9(10H)-one (CAS 1188546-10-2)
- 3-Amino-4-chloro-N-cyclohexylbenzenesulfonamide (CAS 1036534-16-3)
- Semaglutide impurity 266 (CAS CATO-C4X-2226266)
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