1-Ethyl-1H-pyrazole-4-sulfonyl chloride

• CAT Number: L042573
• CAS Number: 957514-21-5
• Molecular Formula: C5H7ClN2O2S
• Molecular Weight: 194.64
• Purity: ≥95%
• IUPAC Name: 1-ethylpyrazole-4-sulfonyl chloride
• InChI: InChI=1S/C5H7ClN2O2S/c1-2-8-4-5(3-7-8)11(6,9)10/h3-4H,2H2,1H3
• InChIKey: GCPANMWERFHRFN-UHFFFAOYSA-N
• SMILES: CCN1C=C(C=N1)S(=O)(=O)Cl

1-Ethyl-1H-pyrazole-4-sulfonyl chloride is an organic compound with the formula C6H8ClN2O2S. It features a pyrazole ring (a five-membered nitrogen-containing heterocycle) with an ethyl group (-CH2CH3) at the 1-position and a sulfonyl chloride group (-SO2Cl) at the 4-position. This compound is often used in organic synthesis as an electrophilic reagent, particularly in sulfonation reactions or as a building block for the preparation of other pyrazole-based molecules. It may also have applications in medicinal chemistry and materials science.