3-Ethylbenzenesulfonic acid CAS 138-29-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 138-29-4 |
| Molecular Formula | C8H10O3S |
| Molecular Weight | 186.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 3-Ethylbenzenesulfonic acid (CAS 138-29-4) pharmaceutical standards reference standard. Molecular formula: C8H10O3S. Molecular weight: 186.23 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C8H10O3S |
| Molecular Weight | 186.23 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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.) | 1957 |
| Sulfur Atoms | 1 |
Related Ethylbenzenesulfonic Standards
Recommended Standards
- methyl 3-methyl-5-(methylamino)-1,2-thiazole-4-carboxylate (CAS 1375182-10-7)
- 3-(Morpholin-4-yl)-1,2,4-thiadiazol-5-amine (CAS 138588-29-1)
- 1-Methoxy-2-(methylsulfonyl)benzene (CAS 13736-79-3)
- 1,2,3,5-Tetramethoxy-4-nitrobenzene (CAS 62384-43-4)
- STO-609 Acetate (CAS 1173022-21-3)
- Pomalidomide Impurity 34 Triethylamine Salt (CAS CATO-C4X-135434)
- 6-Bromo-N-methylhexan-1-amine (CAS 857723-11-6)
- 1-(2-Fluoro-5-bromophenyl)-N-methoxymethanimine (CAS 914311-53-8)
- 1-(3-Fluorophenyl)-3,3-dimethylbutan-1-amine (CAS 1340223-90-6)
- Des-Leu26-Tirzepatide (CAS CATO-CPTD788947)
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 13829788188 / jacky.chen@cato-chem.com