3-Cyclopropyl-1-ethyl-1h-pyrazole-5-sulfonyl chloride CAS 1341502-16-6
| CAS No. | 1341502-16-6 |
| Molecular Formula | C8H11ClN2O2S |
| Molecular Weight | 234.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, 3-Cyclopropyl-1-ethyl-1h-pyrazole-5-sulfonyl chloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 234.70 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
3-Cyclopropyl-1-ethyl-1h-pyrazole-5-sulfonyl chloride (CAS 1341502-16-6) is a high-purity analytical reference standard with the molecular formula C8H11ClN2O2S and a molecular weight of 234.70 g/mol.
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.
CATO manufactures 3-Cyclopropyl-1-ethyl-1h-pyrazole-5-sulfonyl chloride 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 | C8H11ClN2O2S |
| Molecular Weight | 234.70 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Cyclopropyl Standards
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Recommended Standards
- 1-Chloro-n-methyl-n-(pyridin-4-ylmethyl)methanesulfonamide (CAS 1340086-61-4)
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- 4-(chloromethyl)-1-methanesulfonyl-2-methoxybenzene (CAS 1311317-51-7)
- 1-Cyclopentyl-1H-pyrazole-3-sulfonyl chloride (CAS 1354704-89-4)
- 6-Bromo-3-chloropyridin-2-amine (CAS 1060815-73-7)
- 6-Amino-2,2-dimethyl-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 105807-84-9)
- 1-methyl-2-(pyrrolidin-2-yl)-1H-imidazole dihydrochloride (CAS 1427378-83-3)
- Biotin EP Impurity E (CAS 76335-62-1&57229-92-2)
- Ethyl 4-amino-1-isopropyl-1H-pyrrole-2-carboxylate (CAS 486437-78-9)
- 6-Cyano-4-fluoropicolinic acid (CAS 1393575-95-5)
- 5-Chloro-3-fluoro-4-methoxy-2-methylbenzaldehyde (CAS 1823049-90-6)
- (3-Methoxy-5-(trifluoromethyl)phenyl)methanamine (CAS 916420-96-7)
- 3-[(4-Chlorobenzenesulfonyl)methyl]-4-nitrobenzohydrazide (CAS 339016-39-6)
- Insulin Degludec Impurity 9 (CAS CATO-C4X-21579)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com