 
                    
                    
                        4-Chloro-3-(3-methyl-5-oxo-2-pyrazolin-1-yl)benzenesulfonic acid(88-76-6) MS
                        
                        
                            
                                Molecular FormulaC10H9ClN2O4S
                            
                            Molecular Weight288.71
  
                         
                        InChIInChI=1S/C10H9ClN2O4S/c1-6-4-10(14)13(12-6)9-5-7(18(15,16)17)2-3-8(9)11/h2-3,5H,4H2,1H3,(H,15,16,17)
                        InChIKey UWLNKHDLVZEYKQ-UHFFFAOYSA-N
                        SmilesC1(S(O)(=O)=O)=CC=C(Cl)C(N2C(=O)CC(C)=N2)=C1