4-(3-Amino-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid CAS 7336-98-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 7336-98-3 |
| Molecular Formula | C9H9N3O4S |
| Molecular Weight | 255.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-(3-Amino-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid (CAS 7336-98-3), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C9H9N3O4S. Molecular weight: 255.25 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C9H9N3O4S |
| Molecular Weight | 255.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Amino Standards
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Recommended Standards
- 3-Fluoro-N-(1H-indazol-6-yl)benzamide (CAS 710310-83-1)
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- 7-[(E)-2-(4-Fluorophenyl)ethenyl]-[1,2,4]triazolo[1,5-a]pyrimidin-2-amine (CAS 338793-23-0)
- 2-amino-1-(3-chloropyridin-2-yl)ethan-1-one hydrochloride (CAS 2060042-00-2)
- 4-(4-Bromophenyl)-2-[(4-methylphenyl)sulfanyl]-4-oxobutanoic acid (CAS 868255-45-2)
- 4-(4-Fluorophenyl)-3-(trifluoromethyl)-1h-pyrazol-5-amine (CAS 1046046-44-9)
- 3-Bromo-4-fluoro-5-nitropyridine (CAS 1805578-57-7)
- CAS CATO-C3D-262790 (CAS CATO-C3D-262790)
- 2-Chloro-N-(tetrahydro-2H-pyran-4-ylmethyl)-nicotinamide (CAS 1220035-49-3)
- Semaglutide impurity 58 (CAS CATO-C4X-222658)
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