14047-44-0 Benzoic acid, 4-((2-(2-amino-1,4,5,6,7,8-hexahydro-4-oxo-6-pteridinyl)ethyl)amino)- Tetrahydrohomopteroate p-((2-(2-Amino-5,6,7,8-tetrahydro-4-hydroxy-6-pteridinyl)ethyl)amino)benzoic acid