Calcium Folinate EP impurity D; Folinic Acid Impurity D; (S)-2-(4-(N-((2-amino-4-oxo-3,4-dihydropteridin-6-yl)methyl)formamido)benzamido)pentanedioic acid;N-[4-[[(2-Amino-3,4-dihydro-4-oxo-6-pteridinyl)methyl]formylamino]benzoyl]-L-glutamic Acid;10-Formylpteroylglutamic Acid; N10-Formylfolic Acid;N-[p-[N-[(2-Amino-4-hydroxy-6-pteridinyl)methyl]formamido]benzoyl]-glutamic Acid
