Methyl 2-[(2E)-2-(2,4-dichlorophenyl)-2-(methoxyimino)ethanesulfinyl]benzoate CAS 338400-67-2
| CAS No. | 338400-67-2 |
| Molecular Formula | C17H15Cl2NO4S |
| Molecular Weight | 400.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Methyl 2-[(2E)-2-(2,4-dichlorophenyl)-2-(methoxyimino)ethanesulfinyl]benzoate.
Methyl 2-[(2E)-2-(2,4-dichlorophenyl)-2-(methoxyimino)ethanesulfinyl]benzoate (CAS 338400-67-2), molecular formula C17H15Cl2NO4S and molecular weight 400.28 g/mol, is a CATO reference standard with documented purity and traceability.
Methyl 2-[(2E)-2-(2,4-dichlorophenyl)-2-(methoxyimino)ethanesulfinyl]benzoate (C17H15Cl2NO4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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.
Physical & Chemical Properties
| Molecular Formula | C17H15Cl2NO4S |
| Molecular Weight | 400.28 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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