118252-44-1 5-DACTHF 5-Deazacyclotetrahydrofolate 543U76 L-Glutamic acid, N-(4-((3-(2,6-diamino-1,4-dihydro-4-oxo-5-pyrimidinyl)propyl)amino)benzoyl)- N-(4-((3-(2,4-Diamino-1,6-dihydro-6-oxo-5-pyrimidinyl)propyl)amino)benzoyl)glutamic acid