4-Butylbenzenesulfonic acid CAS 18521-59-0
| CAS No. | 18521-59-0 |
| Molecular Formula | C10H14O3S |
| Molecular Weight | 214.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Butylbenzenesulfonic acid.
CATO supplies 4-Butylbenzenesulfonic acid (CAS 18521-59-0), a certified reference material (molecular formula C10H14O3S, MW 214.28 g/mol) for analytical method development and quality control.
Structurally, 4-Butylbenzenesulfonic acid (C10H14O3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 214.28 g/mol, it falls into the medium-molecular-weight range. 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.
CATO manufactures 4-Butylbenzenesulfonic 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 | C10H14O3S |
| Molecular Weight | 214.28 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Sulfur Atoms | 1 |
Recommended Standards
- Ethyl 5-(3-hydroxypropyl)thiophene-2-carboxylate (CAS 1824124-58-4)
- tert-Butyl N-(1,3-thiazol-2-ylmethyl)carbamate (CAS 185747-16-4)
- Ethyl 6-oxo-5-thiaspiro[3.4]octane-7-carboxylate (CAS 1823254-22-3)
- n-(2-Aminoethyl)-1-phenylmethanesulfonamide (CAS 190257-50-2)
- (Z)-5,6,7,8-Tetrahydroazocin-2(1H)-one (CAS 105495-14-5)
- (R)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(6-fluoro-1H-indol-3-yl)propanoic acid (CAS 1257853-57-8)
- Oxybis(ethane-2,1-diyl) bis(isopropylcarbamate) (CAS 6271-03-0)
- n-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)propionamide (CAS 301307-03-9)
- 3-(7-Fluoro-1-oxoisoindolin-2-yl)piperidine-2,6-dione (CAS 2287267-33-6)
- 2-(1-(1H-pyrazol-1-yl)cyclobutyl)ethan-1-ol (CAS 2489784-72-5)
- 1-(4-((4-Hydroxypyridin-3-yl)sulfonyl)piperazin-1-yl)ethanone (CAS 1352496-51-5)
- 5-Bromo-7-(trifluoromethyl)indoline-2,3-dione (CAS 1067187-97-6)
- 1-(5-Hexyl-2-hydroxyphenyl)ethan-1-one (CAS 55168-32-6)
- [y-Glu15]-Semaglutide Impurity 134 (CAS CATO-C4X-2226134)
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