(4E)-3-(Chloromethyl)-4-[4-(dimethylamino)-benzylidene]isoxazol-5(4H)-one 1142199-10-7 9226AC C13H13ClN2O2 CAS 1142199-10-7
| CAS No. | 1142199-10-7 |
| Molecular Formula | C13H13ClN2O2 |
| Molecular Weight | 264.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
(4E)-3-(Chloromethyl)-4-[4-(dimethylamino)-benzylidene]isoxazol-5(4H)-one 1142199-10-7 9226AC C13H13ClN2O2 (CAS 1142199-10-7), molecular formula C13H13ClN2O2 and molecular weight 264.71 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C13H13ClN2O2, (4E)-3-(Chloromethyl)-4-[4-(dimethylamino)-benzylidene]isoxazol-5(4H)-one 1142199-10-7 9226AC C13H13ClN2O2 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 264.71 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H13ClN2O2 |
| Molecular Weight | 264.71 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 sealed and dry, keep tightly closed to prevent evaporation |
| 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; 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 | 2 |
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