5,8-Dichloronaphthalene-2-sulfonyl chloride CAS 1251758-18-5
| CAS No. | 1251758-18-5 |
| Molecular Formula | C10H5Cl3O2S |
| Molecular Weight | 295.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 5,8-Dichloronaphthalene-2-sulfonyl chloride (CAS 1251758-18-5), a certified reference material (molecular formula C10H5Cl3O2S, MW 295.57 g/mol) for analytical method development and quality control.
Structurally, 5,8-Dichloronaphthalene-2-sulfonyl chloride (C10H5Cl3O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 295.57 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO manufactures 5,8-Dichloronaphthalene-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 | C10H5Cl3O2S |
| Molecular Weight | 295.57 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.) | 1990 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Dichloronaphthalene Standards
- 4,5-Dichloronaphthalene-1-sulfonyl chloride (CAS 1384429-86-0)
- 5,8-Dichloronaphthalene-1-sulfonyl chloride (CAS 861090-81-5)
- 1,5-Dichloronaphthalene-2,6-diol (CAS 132178-76-8)
- 3,4-Dichloronaphthalene-1,2-dione (CAS 18398-36-2)
- 1,3-Dichloronaphthalene (CAS 2198-75-6)
- 1,6-Dichloronaphthalene (CAS 2050-72-8)
- 1,7-Dichloronaphthalene (CAS 2050-73-9)
- 2,6-Dichloronaphthalene (CAS 2065-70-5)
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Why CATO?
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