. . . . . . . . . . . . . . . . . . . . . . . . . . . . "Guanosine 5'-(tetrahydrogen triphosphate). A guanine nucleotide containing three phosphate groups esterified to the sugar moiety. [PubChem]"@en . . . . . . . "Guanosine-5'-Triphosphate"@en . "experimental"@en . "86-01-1"@en . .