4-(1-Methyl-1H-pyrazol-3-yl)benzenesulfonyl chloride CAS 916766-81-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 916766-81-9 |
| Molecular Formula | C10H9ClN2O2S |
| Molecular Weight | 256.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(1-Methyl-1H-pyrazol-3-yl)benzenesulfonyl chloride (CAS 916766-81-9) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C10H9ClN2O2S. Molecular weight: 256.71 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C10H9ClN2O2S |
| Molecular Weight | 256.71 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Recommended Standards
- 3-(1-Methyl-1H-pyrazol-5-yl)benzenesulfonyl chloride (CAS 941716-85-4)
- 4-(1-Methyl-1H-pyrazol-4-yl)benzenesulfonyl chloride (CAS 883146-09-6)
- 3-(1-Methyl-1H-pyrazol-3-yl)benzenesulfonyl chloride (CAS 912569-59-6)
- 4-Cyclopropoxy-3-methoxybenzamide (CAS 1243406-49-6)
- (Hexafluoro-2-hydroxyisopropyl)benzene A,A-Bis(trifluoromethyl)benzyl alcohol 1,1,1,3,3,3-Hexafluoro-2-phenyl-2-propanol hexafluoro-2-phenylisopropanol 1,1,1,3,3,3-hexafluoro-2-phenylpropan-2-ol 2-hydroxy-2-phenylhexafluoropropane 2,2,2,2',2',2'-hexafluorocumyl alcohol 2,2,2,2,2,2,-hexafluorocumyl alcohol 718-64-9 (CAS 718-64-9)
- 2-((2-Chlorobenzyl)oxy)ethane-1-sulfonyl chloride (CAS 1482031-25-3)
- (S)-4-Isopropyl-3-(propa-1,2-dien-1-yl)oxazolidin-2-one (CAS 678188-97-1)
- 3-(((5-Fluorothiophen-2-yl)methyl)amino)-1-methyl-1H-pyrazole-4-carboxamide hydrochloride (CAS 1856084-84-8)
- (S)-1-(m-tolyl)pentan-1-amine (CAS 1213947-22-8)
- Akt/SKG Substrate Peptide (CAS 276680-69-4)
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