IUPAC:hydrogen (2S)-2-[(4-{[(2-amino-4-oxo-4,8-dihydropteridin-6-yl)methyl]amino}phenyl)formamido]pentanedioic acid 2,2,6-trioxo-1lambda3,3lambda3,5lambda3-trioxa-2lambda6-thia-8-aza-4-ferraspiro[3.4]octane-4,4-bis(ylium)-1,3,5-triid-8-yl
IUPAC:hydrogen (2S)-2-[(4-{[(2-amino-4-oxo-4,8-dihydropteridin-6-yl)methyl]amino}phenyl)formamido]pentanedioic acid 2,2,6-trioxo-1lambda3,3lambda3,5lambda3-trioxa-2lambda6-thia-8-aza-4-ferraspiro[3.4]octane-4,4-bis(ylium)-1,3,5-triid-8-yl