(1h-Pyrazol-4-yl)methanesulfonamide CAS 1251924-92-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1251924-92-1 |
| Molecular Formula | C4H7N3O2S |
| Molecular Weight | 161.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (1h-Pyrazol-4-yl)methanesulfonamide (CAS 1251924-92-1), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C4H7N3O2S. Molecular weight: 161.18 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C4H7N3O2S |
| Molecular Weight | 161.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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.) | 1990 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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Recommended Standards
- N-(1H-Pyrazol-3-yl)methanesulfonamide (CAS 1248201-08-2)
- Ethyl 2-formamido-2-thioxoacetate (CAS 1254073-67-0)
- 1-(3-Fluorophenyl)cyclopropanecarbonitrile (CAS 124276-55-7)
- n-(2-Methylphenyl)benzenesulfonamide (CAS 18457-86-8)
- 3-{pyrrolo[2,1-f][1,2,4]triazin-5-yl}propanoic acid (CAS 1521105-56-5)
- 6-Methoxy-2-[(5-nitropyridin-2-yl)sulfanyl]-1H-1,3-benzodiazole (CAS 1426935-69-4)
- 1-(2,4-Dimethoxy-5-nitrophenyl)ethanone (CAS 38275-85-3)
- N-(5-Amino-2-chlorophenyl)-2-(3-fluorophenoxy)-acetamide (CAS 1096336-47-8)
- N-(2-Hydroxypropyl)dodecanamide (CAS 142-54-1)
- Peptide Impurity 04 (CAS 2913424-91-4)
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