5-(Chlorosulfonyl)-2,4-dimethylbenzoic acid CAS 313346-23-5
| CAS No. | 313346-23-5 |
| Molecular Formula | C9H9ClO4S |
| Molecular Weight | 248.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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 supplies 5-(Chlorosulfonyl)-2,4-dimethylbenzoic acid (CAS 313346-23-5), a certified reference material (molecular formula C9H9ClO4S, MW 248.68 g/mol) for analytical method development and quality control.
The molecular framework of 5-(Chlorosulfonyl)-2,4-dimethylbenzoic acid (C9H9ClO4S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures 5-(Chlorosulfonyl)-2,4-dimethylbenzoic acid 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 | C9H9ClO4S |
| Molecular Weight | 248.68 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 |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chlorosulfonyl Standards
- 4-(Chlorosulfonyl)phenyl propionate (CAS 1029717-21-2)
- Ethyl 2-(chlorosulfonyl)benzoate (CAS 103008-54-4)
- 4-Chlorosulfonyl-benzoic acid ethyl ester (CAS 10486-51-8)
- Methyl 2-(chlorosulfonyl)-5-methylbenzoate (CAS 1153230-09-1)
- Methyl 3-(chlorosulfonyl)-5-methylbenzoate (CAS 1154149-31-1)
- 4-Methyl-2-chlorosulfonyl-benzoic acid methyl ester, 97% (CAS 1188087-56-0)
- Methyl 2-(chlorosulfonyl)-3-methylbenzoate (CAS 126535-26-0)
- Methyl 4-((chlorosulfonyl)methyl)benzoate (CAS 130047-14-2)
Recommended Standards
- 5-(Chlorosulfonyl)-2,3-dimethylbenzoic acid (CAS 313346-22-4)
- 5-(chlorosulfonyl)-2-ethylbenzoic acid (CAS 866358-16-9)
- 4-Chloro-6-(2,2-difluoropropyl)thieno[2,3-d]pyrimidine (CAS 2180956-71-0)
- 5-Acetyl-2-methoxybenzene-1-sulfonyl chloride (CAS 85276-41-1)
- 2-Chloro-5-cyclobutoxy-7-methoxyquinazolin-4(3H)-one (CAS 601516-87-4)
- (But-3-en-1-yloxy)(tert-butyl)diphenylsilane (CAS 135006-32-5)
- trans-4-[2-(4-Methoxyphenyl)-2-oxoethyl]-cyclohexane-1-carboxylic acid (CAS 735275-80-6)
- 2-(2-Isopropyl-1-imidazolyl)ethanamine Dihydrochloride (CAS 1181458-82-1)
- 6-Chloro-5-(difluoromethyl)-2-hydroxynicotinic acid (CAS 1805368-51-7)
- 1-(But-3-enoxymethyl)-4-methoxybenzene (CAS 142860-83-1)
- 4,4'-Dicyanodiphenylsulphone (CAS 6461-99-0)
- 1-(Bromomethyl)propyl ethyl ether (CAS 34264-99-8)
- Ozagrel Impurity N2 (CAS 20754-20-5)
- Antiarrhythmic peptide (cattle atrium) (CAS 81771-37-1)
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