76709-18-7 GTP-SF Guanosine 5'-(trihydrogendiphosphate), 5'-P-anhydride with 5-((2-(((phosphonothio)acetyl)amino)ethyl)amino)-1-naphthalenesulfonic acid Guanosine-5'-O-(3-thio-(acetylaminoethyl)-1-naphthylamine-5-sulfonic acid)triphosphate