2,4-Dichloro-α-(chloromethyl)benzenemethanol methanesulfonate CAS 53984-39-7
| CAS No. | 53984-39-7 |
| Molecular Formula | C9H9Cl3O3S |
| Molecular Weight | 303.59 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.
2,4-Dichloro-α-(chloromethyl)benzenemethanol methanesulfonate (CAS 53984-39-7), molecular formula C9H9Cl3O3S and molecular weight 303.59 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H9Cl3O3S, 2,4-Dichloro-α-(chloromethyl)benzenemethanol methanesulfonate contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 303.59 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C9H9Cl3O3S |
| Molecular Weight | 303.59 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Dichloro Standards
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- 4-(2-Azaspiro[3.4]octan-2-yl)benzoic acid (CAS 1537148-84-7)
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