1-Ethylpyrazole-4-sulfonyl Chloride CAS 957514-21-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 957514-21-5 |
| Molecular Formula | C5H7ClN2O2S |
| Molecular Weight | 194.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Ethylpyrazole-4-sulfonyl Chloride (CAS 957514-21-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H7ClN2O2S. Molecular weight: 194.64 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C5H7ClN2O2S |
| Molecular Weight | 194.64 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 | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 1-Ethyl-1H-imidazole-2-sulfonyl chloride (CAS 89501-89-3)
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- 1,3-Dimethylpyrazole-4-sulfonyl Chloride (CAS 89501-93-9)
- (2S,3S)-2-(1-ethyl-1H-imidazol-2-yl)tetrahydrofuran-3-amine dihydrochloride (CAS 1807940-82-4)
- 5-METHYL-2-TRIBUTYLSTANNYLTHIOPHENE (CAS 107311-67-1)
- 6-Hydroxyspiro[chromane-2,4'-piperidin]-4-onehydrochloride (CAS 1189985-17-8)
- N-(piperidin-4-yl)cyclopentanecarboxamide (CAS 883548-75-2)
- 1-((2-Methoxy-5-methylphenyl)sulfonyl)piperidine-4-carboxylic acid (CAS 717891-59-3)
- 6-(2,5-DIMETHYLPHENOXY)HEXAN-1-OL (CAS 1695684-65-1)
- Lixisenatide (CAS 320367-13-3)
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