4,4'-Isopropylidenediphenol C12-15-alkyl phosphites 59189-82-1 Didodecyl 4-(1-(4-hydroxyphenyl)-1-methylethyl)phenyl phosphite EINECS 261-651-6 Phosphorous acid, didodecyl 4-(1-(4-hydroxyphenyl)-1-methylethyl)phenyl ester