(4E)-3-(Chloromethyl)-4-(2-chloro-5-nitrobenzylidene)isoxazol-5(4H)-one CAS 1142198-84-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1142198-84-2 |
| Molecular Formula | C11H6Cl2N2O4 |
| Molecular Weight | 301.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(4E)-3-(Chloromethyl)-4-(2-chloro-5-nitrobenzylidene)isoxazol-5(4H)-one (CAS 1142198-84-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C11H6Cl2N2O4. Molecular weight: 301.08 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C11H6Cl2N2O4 |
| Molecular Weight | 301.08 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 sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related E Standards
- N-[4-(chloromethyl)-1,3-thiazol-2-yl]-N-(3-chlorophenyl)acetamide (CAS 790271-17-9)
- N-[4-(chloromethyl)-1,3-thiazol-2-yl]-N-(4-chlorophenyl)acetamide (CAS 21278-70-6)
- 2-(Chloromethyl)-2-methyl-3-(p-tolyl)-2,3-dihydroquinazolin-4(1H)-one (CAS 217461-89-7)
- 4-(2-(Chloromethyl)oxazol-5-yl)-N,N-dimethylbenzenesulfonamide (CAS 89102-57-8)
- Ethyl 6-(chloromethyl)-2-oxo-4-(thiophen-2-yl)-1,2,3,4-tetrahydropyrimidine-5-carboxylate (CAS 878465-42-0)
- 2-(Chloromethyl)-3-(2-methoxyphenyl)quinazolin-4(3H)-one (CAS 22312-81-8)
- 2-(Chloromethyl)-3-(4-methoxyphenyl)quinazolin-4(3H)-one (CAS 22312-82-9)
- 8-(Chloromethyl)-7-(2-methoxyethyl)-3-propyl-2,3,6,7-tetrahydro-1h-purine-2,6-dione (CAS 853724-00-2)
Recommended Standards
- Methyl 4-iodo-1H-indole-3-carboxylate (CAS 101909-44-8)
- 3-Amino-6-iodo-2-methylquinazolin-4(3H)-one (CAS 114496-32-1)
- 5-Bromo-1-(4-fluorobenzyl)-3-nitro-1H-1,2,4-triazole (CAS 919425-68-6)
- N-(1,5-Dimethyl-6-oxo-1,6-dihydropyrimidin-4-yl)acetamide (CAS 876509-21-6)
- 4-(1,2,2-Triphenylvinyl)aniline (CAS 919789-80-3)
- 1-(3-methylcyclohexyl)piperidin-4-one (CAS 1096306-10-3)
- (R)-2-(1-((Benzyloxy)carbonyl)pyrrolidin-2-yl)acetic acid (CAS 61350-64-9)
- 2-chloro-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carbaldehyde (CAS 17481-62-8)
- Letrozole Impurity 32 (CAS 305861-48-7)
- Tau Peptide (379-408) trifluoroacetate salt (CAS 1246357-53-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com