Synonyms: Guanosine 5'-(trihydrogenpyrophosphate), mono-L-fucosyl ester;Guanosine5'-(trihydrogen pyrophosphate), mono(6-deoxy-b-L-galactopyranosyl) ester (8CI);Guanosine5'-pyrophosphate, b-L-fucopyranosyl ester (6CI);Fucopyranose, 1?;5'-ester with guanosine 5'-(trihydrogenpyrophosphate);GDP-L-fucose;GDP-fucose;GDP-b-L-Fucose;Guanosine 5'-(trihydrogen pyrophosphate),mono(6-deoxy-L-galactopyranosyl) ester;Guanosine 5'-(trihydrogenpyrophosphate), mono(6-deoxygalactopyranosyl) ester;Guanosine 5'-pyrophosphate, L-fucosyl ester;Guanosine diphosphate fucose;Guanosine diphosphofucose;Guanosine 5'-diphosphate L-fucose;Guanosine pyrophosphate, L-fucosyl ester;