37793-58-1 6484-74-8 L-Glutamic acid, N-(N-(N-(N-(N-(N-(N-(4-(((2-amino-1,4-dihydro-4-oxo-6-pteridinyl)methyl)amino)benzoyl)-L-gamma-glutamyl)-L-gamma-glutamyl)-L-gamma-glutamyl)-L-gamma-glutamyl)-L-gamma-glutamyl)-L-gamma-glutamyl)- Pteroylglutamyl-gamma-hexaglutamate Pteroylhexaglutamylglutamic acid