Benzenesulfonyl-acetic acid CAS 3959-23-7
| CAS No. | 3959-23-7 |
| Molecular Formula | C8H8O4S |
| Molecular Weight | 200.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Benzenesulfonyl-acetic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 200.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
Benzenesulfonyl-acetic acid (CAS 3959-23-7), molecular formula C8H8O4S and molecular weight 200.21 g/mol, is a CATO reference standard with documented purity and traceability.
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), Benzenesulfonyl-acetic 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 | C8H8O4S |
| Molecular Weight | 200.21 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Sulfur Atoms | 1 |
Related Benzenesulfonyl Standards
- 1-(benzenesulfonyl)propan-2-ol (CAS 68276-72-2)
- 3-(benzenesulfonyl)propan-1-amine (CAS 98510-52-2)
- 1-(Benzenesulfonyl)guanidine (CAS 4392-37-4)
- 4-Ethyl-benzenesulfonyl chloride (CAS 16712-69-9)
- 349-89-3 Benzenesulfonyl fluoride, p-chloro- Benzenesulfonyl fluoride, 4-chloro- (9CI) 4-11-00-00114 (Beilstein Handbook Reference) BRN 2091507 p-Chlorobenzenesulfonyl fluoride 4-Chlorobenzenesulfonyl fluoride 4-Chlorophenylsulfonyl fluoride NSC 12521 (CAS 349-89-3)
- (2E)-4-(Benzenesulfonyl)but-2-enenitrile (CAS 133167-32-5)
- 1-(Benzenesulfonyl)cyclopropane-1-carbonitrile (CAS 36674-50-7)
- 4-(benzenesulfonyl)-1H-imidazole (CAS 1443980-18-4)
Recommended Standards
- 6-Ethoxy-N4-(2-fluoroethyl)pyrimidine-4,5-diamine (CAS 326831-57-6)
- Dimethyl Thiophene-3,4-dicarboxylate (CAS 4282-35-3)
- 6-(Difluoromethyl)-2-mercapto-4-methylnicotinonitrile (CAS 438218-60-1)
- Dimethylthiophene-3,4-dicarboxylic acid (CAS 99595-92-3)
- 3-bromo-7H-pyrrolo[2,3-c]pyridazine (CAS 1638764-04-1)
- 1-Bromo-6-(trifluoromethyl)isoquinoline (CAS 1196152-93-8)
- 3,5-Dibromo-1-methyl-1H-indazole (CAS 52088-11-6)
- N-(2-(4-methylpiperazin-1-yl)-5-(trifluoromethyl)phenyl)hydroxylamine (CAS 866133-93-9)
- 8-(tert-Butoxycarbonyl)-8-azaspiro[4.5]decane-2-carboxylic acid, 97% (CAS 1160247-17-5)
- 4-{[(Z)-{amino[3-chloro-5-(trifluoromethyl)pyridin-2-yl]methylidene}amino]oxy}-4-oxobutanoic acid (CAS 400076-71-3)
- 3-Bromo-5-(propan-2-yloxy)aniline hydrochloride (CAS 1376298-90-6)
- 3-(4-Fluoro-2-methoxyphenyl)azetidin-3-ol (CAS 1388075-27-1)
- 5-((Propionyloxy)methyl)furan-2-carboxylic acid (CAS 405294-68-0)
- Semaglutide Impurity 192 (CAS CATO-C4X-2226192)
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