4-Bromo-3-ethyl-N,N-dimethyl-1H-pyrazole-1-sulfonamide CAS 917899-20-8
| CAS No. | 917899-20-8 |
| Molecular Formula | C7H12BrN3O2S |
| Molecular Weight | 282.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-Bromo-3-ethyl-N,N-dimethyl-1H-pyrazole-1-sulfonamide (CAS 917899-20-8), molecular formula C7H12BrN3O2S and molecular weight 282.16 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-Bromo-3-ethyl-N,N-dimethyl-1H-pyrazole-1-sulfonamide (C7H12BrN3O2S) is characterized by an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures 4-Bromo-3-ethyl-N,N-dimethyl-1H-pyrazole-1-sulfonamide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H12BrN3O2S |
| Molecular Weight | 282.16 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 4-Bromo-5-ethyl-N,N-dimethyl-1H-pyrazole-1-sulfonamide (CAS 1244027-82-4)
- 4-Bromo-1-(3-(methylsulfonyl)propyl)-1h-pyrazol-3-amine (CAS 1341331-85-8)
- n-(4-Bromo-3-ethyl-1-methyl-1h-pyrazol-5-yl)methanesulfonamide (CAS 1489591-32-3)
- n-(4-Bromo-1-ethyl-3-methyl-1h-pyrazol-5-yl)methanesulfonamide (CAS 1492551-50-4)
- 1-(4-Bromo-1-methyl-1H-pyrazol-5-yl)-N,N-dimethylmethanesulfonamide (CAS 1710696-24-4)
- 2-Bromo-1-[5-(2-pyridinyl)-2-thienyl]-1-e... 2-bromo-1-[5-(2-pyridinyl)-2-thienyl]-1-ethanone 306935-06-8 C11H8BrNOS V2226 (CAS 306935-06-8)
- 1-(3-Bromo-4-fluorophenyl)cyclohexane-1-carbonitrile (CAS 1881328-46-6)
- 1-(4-Bromo-3-methylbenzoyl)piperidine (CAS 1007212-45-4)
Recommended Standards
- 4,4,5,5-Tetramethyl-2-[2-(methylsulfonyl)phenyl]-1,3,2-dioxaborolane (CAS 879648-22-3)
- 6,6,7,7,8,8,8-Heptafluoro-2-methyloctane-3,5-dione (CAS 40002-62-8)
- 4-(Methylsulfonyl)phenylboronic Acid Pinacol Ester (CAS 603143-27-7)
- Ethyl 3-oxo-3-(perfluorophenyl)propanoate (CAS 3516-87-8)
- Isoquinoline Impurity 22 (CAS 91344-81-9)
- [2-Bromo-3-(propan-2-yloxy)phenyl]methanamine (CAS 1936662-46-2)
- 4-(Prop-2-yn-1-yloxy)piperidine (CAS 217184-88-8)
- tert-Butyl 3-(5-formylisoxazol-3-yl)azetidine-1-carboxylate (CAS 1864058-39-8)
- 6-Amino-2-((4-fluorophenyl)amino)pyrimidin-4-ol (CAS 123392-52-9)
- 5-(3-Chlorophenyl)-1-(3,4-dichlorophenyl)-1H-tetrazole (CAS 338411-30-6)
- Linagliptin Form A (CAS CATO-C4X-1101157)
- N-(4-Bromophenyl)-2-((5-(4-chlorophenyl)-4-(p-tolyl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 477330-61-3)
- 1-(2-Bromoethyl)pyrrole 1-(2-bromoethyl)-1H-pyrrole 78358-86-8 (CAS 78358-86-8)
- D-Ala28-Tirzepatide (CAS CATO-CPTD788906)
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 18665070610 / Nicole.chen@cato-chem.com