易溶于水，不溶于乙醇。在PH1条件下A250/A260 =0.96±0.05; A280/A260 =0.67±0.03; λmax=256±1nm。Guanosine 5′-triphosphate (GTP), a purine trinucleotide, is a substrate for RNA polymerases and a wide range of GTPase including G-protein coupled receptor (GPCR) GTPases and cell signaling and cycling associated guanine nucleotide exhange factors (GEF). Guanosine 5′-triphosphate (GTP), a purine trinucleotide, is a substrate for RNA polymerases and a wide range of GTPase including G-protein coupled receptor (GPCR) GTPases and cell signaling and cycling associated guanine nucleotide exhange factors (GEF).