54364-02-2 8-((4-chlorophenyl)thio)cyclic-3',5'-GMP 8-(4-Chlorophenylthio)guanosine-3'-5'-cyclic monophosphate 8-(p-Chlorophenylthio)cyclic GMP 8-Pcpt-cgmp Guanosine, 8-((4-chlorophenyl)thio)-, cyclic 3',5'-(hydrogen phosphate)