5-Me-Thf(glu)3 5-Methyltetrahydrofolate triglutamate 50998-20-4 L-Glutamic acid, N-(N-(N-(N-(4-(((2-amino-1,4,5,6,7,8-hexahydro-5-methyl-4-oxo-6-pteridinyl)methyl)amino)benzoyl)-L-gamma-glutamyl)-L-gamma-glutamyl)-L-gamma-glutamyl)-