108402-49-9 7-Hydro-8-methylpteroylglutamylglutamic acid HMPGG L-Glutamic acid, N-(N-(4-(((2-amino-1,4,7,8-tetrahydro-8-methyl-4-oxo-6-pteridinyl)methyl)amino)benzoyl)-L-gamma-glutamyl)- N-(N-(4-(((2-Amino-1,4,7,8-tetrahydro-8-methyl-4-oxo-6-pteridinyl)methyl)amino)benzoyl)-L-gamma-glutamyl)-L-glutamic acid