5-(Chlorosulfonyl)-2,3-dimethylbenzoic acid CAS 313346-22-4
| CAS No. | 313346-22-4 |
| Molecular Formula | C9H9ClO4S |
| Molecular Weight | 248.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-(Chlorosulfonyl)-2,3-dimethylbenzoic acid is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-(Chlorosulfonyl)-2,3-dimethylbenzoic acid (CAS 313346-22-4), molecular formula C9H9ClO4S and molecular weight 248.68 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-(Chlorosulfonyl)-2,3-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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-(Chlorosulfonyl)-2,3-dimethylbenzoic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
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
- 4-Chloro-6-(2,2-difluoropropyl)thieno[2,3-d]pyrimidine (CAS 2180956-71-0)
- 5-(Chlorosulfonyl)-2,4-dimethylbenzoic acid (CAS 313346-23-5)
- 4-Chloro-4-fluoro-3-methylbenzophenone (CAS 59612-89-4)
- 5-(chlorosulfonyl)-2-ethylbenzoic acid (CAS 866358-16-9)
- (2R)-3-(((2,3-Dihydroxypropoxy)(hydroxy)phosphoryl)oxy)propane-1,2-diyl distearate (CAS 217939-97-4)
- 2-Aminobenzyl 7H-purine-7-carboxylate (CAS 21266-46-6)
- 9,10-Dimethoxy-2,3,4,6,7,11b-hexahydro-1H-pyrazino[2,1-a]isoquinoline (CAS 109473-55-4)
- methyl 3-{[2-(aminocarbonyl)-5-(4-methoxyphenyl)-3-thienyl]amino}-2-(2,2,2-trifluoroacetyl)acrylate (CAS 648410-27-9)
- MEthyl 2-(2-ethoxy-2-oxoethoxy)benzoate (CAS 22511-42-8)
- 2-(N-Phenyl-N-benzyl-aminomethyl)-imidazole (CAS 371974-08-2)
- (2-Iodo-4-methoxyphenyl)methanol (CAS 1379329-63-1)
- 2-(Piperidin-3-yl)pyrimidine (CAS 182416-14-4)
- 2-[(5-Tetrazolyl)methyl]isoindoline-1,3-dione (CAS 114841-44-0)
- Erythropoietin Mimetic Peptide Sequence 20 (CAS 203397-62-0)
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