dGTP-13C10,15N5 (2-Deoxyguanosine-5-triphosphate-13C10,15N5) dilithium is 13C and 15N-labeled dGTP (HY-138616). dGTP (2-Deoxyguanosine-5-triphosphate), a guanosine nucleotide, can be used in deoxyribonucleic acid synthesis. Guanosine nucleotides (GDP, GTP, dGDP, and dGTP) are highly susceptible to oxidative damage to 8-oxo-GDP (8-O-GDP), 8-O-dGTP, 8-O-GTP, and 8-O-dGTP.