Propofol EP Impurity K Catalogue B485431 CAS 14366-59-7 M.W 178.27 M.F C12H18O Specifications FAQs Isopropyl 2-Isopropylphenyl Ether; 1-(1-Methylethoxy)-2-(1-methylethyl)benzene; o-Cumenyl Isopropyl Ether