4-Isopropylbenzenesulfonic acid CAS 16066-35-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 16066-35-6 |
| Molecular Formula | C9H12O3S |
| Molecular Weight | 200.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Isopropylbenzenesulfonic acid (CAS 16066-35-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C9H12O3S. Molecular weight: 200.25 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
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.) | 1961 |
| Sulfur Atoms | 1 |
Recommended Standards
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- Methyl 2-hydroxy-4-(thiophen-3-yl)butanoate (CAS 1465788-65-1)
- L-Phenylglycine Amide (CAS 6485-52-5)
- cis-3,4,4a,5,6,7,8,8a-octahydro-1H-quinolin-2-one (CAS 37088-57-6)
- Ethyl 4-chlorobenzo[b]thiophene-2-carboxylate (CAS 1207537-67-4)
- tert-Butyl 6-hydroxy-2-oxospiro[indoline-3,4'-piperidine]-1'-carboxylate (CAS 2383903-89-5)
- 4-Hydroxyhexane-2,3,5-trione (CAS 4384-08-1)
- 5-Cyclopropyl-3-iodo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole (CAS 2856373-52-7)
- Semaglutide impurity 261 (CAS CATO-C4X-2226261)
Why CATO?
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