4-(4-Bromo-1H-pyrazol-1-yl)benzenesulfonamide CAS 957034-91-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 957034-91-2 |
| Molecular Formula | C9H8BrN3O2S |
| Molecular Weight | 302.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(4-Bromo-1H-pyrazol-1-yl)benzenesulfonamide (CAS 957034-91-2) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C9H8BrN3O2S. Molecular weight: 302.15 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C9H8BrN3O2S |
| Molecular Weight | 302.15 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; 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 | Br-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 4-(2-Fluoro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-1-methyl-1H-pyrazole (CAS 2434716-89-7)
- 8-Chloro-2-phenylquinoline-4-carbonyl chloride (CAS 500775-82-6)
- 3-(3-Bromophenyl)-5-(methylsulfonyl)-1H-1,2,4-triazole (CAS 924663-92-3)
- (S)-4-(p-Tolyl)pyrrolidin-2-one (CAS 71639-11-7)
- 2-Methyl-5-propan-2-ylaniline (CAS 2051-53-8)
- N-(3-Amino-2-methylphenyl)cyclopentanecarboxamide hydrochloride (CAS 1269039-42-0)
- 3-Bromo-N-Boc-L-alanine cyclopentyl ester (CAS 1023327-88-9)
- 2-N,N-Dimethylaminomethyl-1,3-diaminopropane trihydrochloride (CAS 936255-80-0)
- N-(5-(Ethylthio)-1,3,4-thiadiazol-2-yl)-1-methyl-1H-1,2,3-triazole-4-carboxamide (CAS 1207009-69-5)
- Tau Peptide (337-368) (Repeat 4 Domain) trifluoroacetate salt (CAS 330456-27-4)
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