Pyrazolo[1,5-a]pyrimidine-3-sulfonamide CAS 112582-68-0
| CAS No. | 112582-68-0 |
| Molecular Formula | C6H6N4O2S |
| Molecular Weight | 198.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Pyrazolo[1,5-a]pyrimidine-3-sulfonamide (CAS 112582-68-0), a certified reference material (molecular formula C6H6N4O2S, MW 198.20 g/mol) for analytical method development and quality control.
Based on its molecular formula C6H6N4O2S, Pyrazolo[1,5-a]pyrimidine-3-sulfonamide contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 198.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C6H6N4O2S |
| Molecular Weight | 198.20 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Pyrazolo Standards
- ethyl pyrazolo[1,5-a]pyrimidine-3-carboxylate (CAS 115932-00-8)
- pyrazolo[1,5-a]quinolin-3-ol (CAS 2766427-68-1)
- pyrazolo[5,1-a]isoquinolin-1-ol (CAS 2766427-78-3)
- pyrazolo[5,1-a]isoquinolin-7-ol (CAS 2766427-67-0)
- 4H-Pyrazolo[1,5-a]indole-2-carboxylic acid (CAS 146139-47-1)
- 2-(Pyrazolo[1,5-a]pyridin-3-yl)cyclopropanecarboxylic acid (CAS 1707369-57-0)
- 2-(1H-Pyrazolo[3,4-b]pyridin-3-yl)thiazole (CAS 918484-79-4)
- 7H-Pyrazolo[4,3-d]pyrimidin-7-one, 5-chloro-3-fluoro-1,6-dihydro-1-methyl- (CAS 2445845-24-7)
Recommended Standards
- Imidazo[1,2-a]pyridine-3-sulfonic acid (CAS 112581-51-8)
- 1H-Benzo[d]imidazole-1-sulfonic acid (CAS 114389-46-7)
- 5-Formyl-2-(methylsulfanyl)pyrimidine-4-carboxylic acid (CAS 111253-04-4)
- [1,2,4]Triazolo[4,3-a]pyridine-3-sulfonamide (CAS 120267-05-2)
- 8-Methoxyisoquinoline-4-carbonitrile (CAS 1231761-42-4)
- tert-Butyl 2-(trifluoromethyl)imidazo[1,2-a]pyridine-3-carboxylate (CAS 87378-58-3)
- 2-(2-(Difluoromethoxy)-6-methoxybenzoyl)pyridine (CAS 1261468-22-7)
- 2,8-Diazaspiro[5.5]undecan-2-yl(tetrahydrofuran-2-yl)methanone (CAS 1181289-12-2)
- 2,4-Dichloro-5-methylbenzodifluoride (CAS 1806346-64-4)
- 1,3-Benzenedicarboxylic acid, polymer with 1,2-ethanediol and 1,3,5-tris(2-hydroxyethyl)-1,3,5-triazine-2,4,6(1H,3H,5H)-trione (CAS 67906-79-0)
- 4-(Furan-2-carbonyl)-3-hydroxy-1-(5-methyl-1,3,4-thiadiazol-2-yl)-5-(4-nitrophenyl)-1H-pyrrol-2(5H)-one (CAS 371117-78-1)
- Collagen Type II Fragment trifluoroacetate salt (CAS 144703-90-2)
- 4-Benzyloxy-2,3-dimethylbenzyl alcohol (CAS 2244107-71-7)
- Allo-Thr5-Tirzepatide (CAS CATO-CPTD788934)
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