66341-18-2 72235-82-6 9-(2-Hydroxyethoxymethyl)guanine triphosphate Aciclvir-triphosphate AcycloGTP Acycloguanosine triphosphate Acyclovir triphosphate Triphosphoric acid, P-(2-((2-amino-1,6-dihydro-6-oxo-9H-purin-9-yl)methoxy)ethyl) ester