3'-Guanylic acid, N-benzoyl-5'-O-(bis(4-methoxyphenyl)phenylmethyl)-P-(4-chlorophenyl)-2'-deoxyadenylyl-(3'.5')-2'-deoxy-N-(2-methyl-1-oxopropyl)-, 4-chlorophenyl 2-cyanoethyl ester 73591-23-8 EINECS 277-545-8