6484-74-8

L-Glutamic acid,N-[4-[[(2-amino-1,4-dihydro-4-oxo-6-pteridinyl)methyl]amino]benzoyl]-L-g-glutamyl-L-g-glutamyl-L-g-glutamyl-L-g-glutamyl-L-g-glutamyl-L-g-glutamyl-