1-(2-chloro-5-sulfonophenyl)-3-methyl-5-pyrazolinone

structural formula business number 0202 molecular formula c10h9cln2o4s molecular weight 288.71 label 4-chloro-3-(4,5-dihydro-3-methyl-5-oxo-1h-pyrazol-1-yl)-benzenesulfonic acid, 3-methyl-1-(2′-…