(E)-3-(chloromethyl)-4-(4-fluorobenzylidene)isoxazol-5(4H)-one CAS 1142199-23-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1142199-23-2 |
| Molecular Formula | C11H7ClFNO2 |
| Molecular Weight | 239.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order (E)-3-(chloromethyl)-4-(4-fluorobenzylidene)isoxazol-5(4H)-one (CAS 1142199-23-2) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C11H7ClFNO2. Molecular weight: 239.63 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C11H7ClFNO2 |
| Molecular Weight | 239.63 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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 | F/Cl-containing |
| Nitrogen Atoms | 1 |
Related E Standards
- (4E)-3-(Chloromethyl)-4-(2-fluorobenzylidene)-isoxazol-5(4H)-one (CAS 1142199-21-0)
- 5-Chloromethyl-1-(4-nitro-phenyl)-1H-tetrazole (CAS 107269-72-7)
- 2-ChloroMethyl-3-Methyl-4-trifluoroethylpyridine (CAS 128430-66-0)
- 2-(chloromethyl)-5-(2-nitrophenyl)-1,3,4-oxadiazole (CAS 63002-55-1)
- 2-(Chloromethyl)-5-(3-nitrophenyl)-1,3,4-oxadiazole (CAS 63002-57-3)
- 2-(Chloromethyl)-5-(4-nitrophenyl)-1,3,4-oxadiazole (CAS 50677-30-0)
- 5-(Chloromethyl)-3-(3-nitrophenyl)-1,2,4-oxadiazole (CAS 6595-78-4)
- 5-(Chloromethyl)-3-(4-nitrophenyl)-1,2,4-oxadiazole (CAS 57611-19-5)
Recommended Standards
- 1216418-07-3 4-(Acetylamino)-benzene-2,3,5,6-3C6-sulfonyl Chloride 4-N-Acetylaminobenzene-13C6-sulfonyl Chloride 4-[(Acetylamino)phenyl-3C6]sulfonyl chloride NSC 127860-3C6 p-Acetamidophenylsulfonyl-3C6 chloride (CAS 1216418-07-3)
- N1-(6-chloro-4-(trifluoromethyl)pyridin-2-yl)ethane-1,2-diamine (CAS 1089330-39-1)
- Methyl 2-chloro-6-fluoroquinoline-4-carboxylate (CAS 1243032-25-8)
- Methyl 6-phenyl-5-(p-tolyl)picolinate (CAS 1011301-80-6)
- 1-Ethyl-4-((pyridin-3-yloxy)methyl)-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine (CAS 1422059-64-0)
- 3-Methyl-6,7-dihydro-2H-pyrazolo[3,4-c]pyridin-5(4H)-one (CAS 959307-66-5)
- 5-Methyl-1,2,3,4,5,6-hexahydro-[2,3]bipyridinyl dihydrochloride (CAS 1361112-67-5)
- 5-Bromo-4-chloropyrimidine (CAS 56181-39-6)
- Oritavancin (CAS 171099-57-3)
- Tirzepatide Impurity 47 (CAS CATO-C4X-324047)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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