3,5-Dimethyl-1h-pyrazole-4-sulfonic acid CAS 89280-34-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 89280-34-2 |
| Molecular Formula | C5H8N2O3S |
| Molecular Weight | 176.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3,5-Dimethyl-1h-pyrazole-4-sulfonic acid (CAS 89280-34-2), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C5H8N2O3S. Molecular weight: 176.19 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C5H8N2O3S |
| Molecular Weight | 176.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 3,4-Dihydro-2H-thiopyran-5-carboxylic acid 1,1-dioxide (CAS 99418-18-5)
- 4-(Difluoromethyl)-6-methylpyrimidine-2-thiol (CAS 438221-08-0)
- 3-(4-Fluorophenyl)-5-methyl-1h-pyrazole (CAS 475982-42-4)
- tert-Butyl 3,3-Dimethyl-4-(6-nitropyridin-3-yl)piperazine-1-carboxylate (CAS 1433990-38-5)
- tert-Butyl 3-((4-aminophenyl)thio)-piperidine-1-carboxylate (CAS 1196963-49-1)
- 5-(Difluoromethyl)-2-fluoropyridine (CAS 1374659-41-2)
- (3R,5R)-5-(3-((4,4,4-trifluorobutyl)sulfonyl)propyl)pyrrolidin-3-ol (CAS 1670273-35-4)
- 2,6-Dichloropyridine-3,4,5-triamine (CAS 87535-56-6)
- N-(4-Ethoxybenzyl)-2-isopropoxyaniline (CAS 1040683-17-7)
- [14-31]-Semaglutide (CAS CATO-C4X-2226262)
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