8-(5-Thioacetamidofluorescein)-cgmp 8-(5-Thioacetamidofluorescein)cyclic-GMP 8-(Fluoresceinyl)thioguanosine 3',5'-cyclic monophosphate 99776-42-8 Cgmp-taf Guanosine, 8-((2-((3',6'-dihydroxy-3-oxospiro(isobenzofuran-1(3H),9'-(9H)xanthen)-5-yl)amino)-2-oxoethyl)thio)-, cyclic 3',5'-(hydrogen phosphate) Saf-cgmp