Sodium 3,5-dichloro-4-methylbenzene-1-sulfonate CAS 5042-19-3
| CAS No. | 5042-19-3 |
| Molecular Formula | C7H5Cl2O3S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Sodium 3,5-dichloro-4-methylbenzene-1-sulfonate 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.
Sodium 3,5-dichloro-4-methylbenzene-1-sulfonate (CAS 5042-19-3) is a high-purity analytical reference standard with the molecular formula C7H5Cl2O3SNa and a molecular weight of 263.06 g/mol.
Owing to a salt form, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, Sodium 3,5-dichloro-4-methylbenzene-1-sulfonate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 263.06 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C7H5Cl2O3S Na |
| Molecular Weight | 263.06 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Sodium Standards
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Recommended Standards
- Anthracene (CAS 120-12-7)
- 3-bromo-5-iodo-1-methyl-pyridin-2-one (CAS 1433855-64-1)
- Sodium 2,3-dimercapto-1-propanesulfonate (CAS 4076-02-2)
- Ambroxol impurity 113 (CAS 131417-90-8)
- Fmoc-Cys(Dpm)-OH (CAS 247595-29-5)
- [Hexahydro-5-(4-pyridinyl)pyrrolo[3,4-c]pyrrol-2(1H)-yl][1-(5-isoquinolinylsulfonyl)-3-azetidinyl]-methanone (CAS 1392443-41-2)
- 3-((2-Aminoethyl)amino)butanoic acid (CAS 52562-33-1)
- 3-Phenylpyrido[2,3-b]pyrazin-2(1H)-one (CAS 439148-46-6)
- Tromantadine (CAS 53783-83-8)
- (D-Trp32)-Neuropeptide Y (porcine) trifluoroacetate salt (CAS 153549-78-1)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com