Firocoxib Impurity 14-ISOBUTYRO THIOANISOLE4'METHYLTHIOISOBUTYROPHENONEp-Methylthiophenyl isopropyl ketone1-Propanone, 2-methyl-1-[4-(methylthio)phenyl]-2-Methyl-1-(4-methylsulfanyl-phenyl)-propan-1-one2-Methyl-1-[4-(methylsulfanyl)phenyl]-1-propanoneQ: What is 2-Methyl-1-[4-(methylsulfanyl)phenyl]-1-propanone Q: What is the CAS Number of 2-Methyl-1-[4-(methylsulfanyl)phenyl]-1-propanone