7-Chloronaphthalene-2-sulfonyl chloride CAS 102153-64-0
| CAS No. | 102153-64-0 |
| Molecular Formula | C10H6Cl2O2S |
| Molecular Weight | 261.12 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 7-Chloronaphthalene-2-sulfonyl chloride.
7-Chloronaphthalene-2-sulfonyl chloride (CAS 102153-64-0), molecular formula C10H6Cl2O2S and molecular weight 261.12 g/mol, is a CATO reference standard with documented purity and traceability.
7-Chloronaphthalene-2-sulfonyl chloride (C10H6Cl2O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. 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. 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.
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 | C10H6Cl2O2S |
| Molecular Weight | 261.12 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloronaphthalene Standards
- 6-Chloronaphthalene-1-sulfonyl chloride (CAS 102153-61-7)
- 7-chloronaphthalene-1-sulfonyl chloride (CAS 102153-62-8)
- 6-Chloronaphthalene-2-sulfonyl chloride, 97% (CAS 102153-63-9)
- 2-Chloronaphthalene-1-sulfonyl chloride (CAS 102154-19-8)
- 3-Chloronaphthalene-2-sulfonyl chloride (CAS 3623-96-9)
- 4-chloronaphthalene-1-sulfonyl chloride (CAS 64318-08-7)
- 5-Chloronaphthalene-1-sulfonyl chloride, 96% (CAS 6291-07-2)
- 5-Chloronaphthalene-2-sulfonyl Chloride (CAS 89108-45-2)
Recommended Standards
- tert-Butyl 4-bromo-3-methyl-1H-pyrazole-1-carboxylate (CAS 1021919-24-3)
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- 4-Bromo-3-isobutyl-1-methyl-1H-pyrazole-5-carboxylic acid (CAS 1020722-62-6)
- tert-Butyl 3-bromo-5-methyl-1H-pyrazole-1-carboxylate (CAS 1056156-03-6)
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- 4-Ethoxy-6-methoxy-1,3,5-triazin-2-amine (CAS 62096-91-7)
- Ethyl 3-(4-methylpyridin-3-yl)propanoate (CAS 19608-38-9)
- 1-(3-bromo-5-fluorophenyl)-2-chloroethanone (CAS 1260892-53-2)
- [2-(2-Methoxyethoxy)pyridin-4-yl]methanamine (CAS 1016496-42-6)
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- 4-Chloro-N-(prop-2-yn-1-yl)aniline (CAS 22774-67-0)
- 1-{[1-(difluoromethyl)-3,5-dimethyl-1h-pyrazol-4-yl]sulfonyl}piperidine-3-carboxylic acid (CAS 956935-30-1)
- Semaglutide impurity 99 (CAS CATO-C4X-222699)
Why CATO?
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