2,3,4-Trimethylbenzenesulfonic Acid CAS 28987-67-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 28987-67-9 |
| Molecular Formula | C9H12O3S |
| Molecular Weight | 200.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,3,4-Trimethylbenzenesulfonic Acid (CAS 28987-67-9) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C9H12O3S. Molecular weight: 200.25 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C9H12O3S |
| Molecular Weight | 200.25 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.) | 1965 |
| Sulfur Atoms | 1 |
Related Trimethylbenzenesulfonic Standards
Recommended Standards
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- (2-(Pyridin-4-ylmethoxy)phenyl)methanamine dihydrochloride (CAS 2059988-50-8)
- (5-Methyl-1,3-phenylene)dimethanamine (CAS 152849-70-2)
- 2-(2,6-Dimethyl-4-oxazol-2-yl-benzenesulfonylamino)-3-({1-methyl-3-[3-(1,4,5,6-tetrahydro-pyrimidin-2-ylamino)-propyl]-1H-indazole-6-carbonyl}-amino)-propionic acid (CAS 1231017-07-4)
- Neuropeptide Y, human (CAS 98264-90-5)
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