7-Methoxynaphthalene-2-sulfonyl chloride CAS 56875-60-6
| CAS No. | 56875-60-6 |
| Molecular Formula | C11H9ClO3S |
| Molecular Weight | 256.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
7-Methoxynaphthalene-2-sulfonyl chloride (C11H9ClO3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, 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).
CATO supplies 7-Methoxynaphthalene-2-sulfonyl chloride (CAS 56875-60-6), a certified reference material (molecular formula C11H9ClO3S, MW 256.71 g/mol) for analytical method development and quality control.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 7-Methoxynaphthalene-2-sulfonyl chloride under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H9ClO3S |
| Molecular Weight | 256.71 g/mol |
| 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 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Methoxynaphthalene Standards
- 1-Methoxynaphthalene-2-sulfonyl chloride (CAS 56875-52-6)
- 4-Methoxynaphthalene-1-sulfonyl chloride (CAS 56875-55-9)
- 5-Methoxynaphthalene-1-sulfonyl chloride (CAS 56875-56-0)
- 6-Methoxynaphthalene-1-sulfonyl chloride (CAS 66413-57-8)
- 6-Methoxynaphthalene-2-sulfonyl chloride (CAS 56875-59-3)
- 7-Methoxynaphthalene-1-sulfonyl chloride (CAS 56875-61-7)
- Sodium 6-methoxynaphthalene-2-sulfonate (CAS 149353-39-9)
- 1-Benzyl-5-methoxynaphthalene (CAS 690232-00-9)
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