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D-Folic acid Folic Acid Impurity 10 Folic acid impurities492 Folic Acid Related Impurity 1 Folic Acid Impurity 10（D-Folic Acid） (4-(((2-amino-4-oxo-1,4-dihydropteridin-6-yl)methyl)amino)benzoyl)-D-glutamic acid (R)-2-(4-(((2-amino-4-hydroxypteridin-6-yl)methyl)amino)benzamido)pentanedioic acid D-Glutamic acid, N-[4-[[(2-amino-1,4-dihydro-4-oxo-6-pteridinyl)methyl]amino]benzoyl]- D-Glutamic acid, N-[4-[[(2-amino-3,4-dihydro-4-oxo-6-pteridinyl)methyl]amino]benzoyl]- (R)-2-(4-(((2-amino-4-oxo-4,8-dihydropteridin-6-yl)methyl)amino)benzamido)pentanedioic acid D-Glutamic acid,N-[4-[[(2-amino-1,4-dihydro-4-oxo-6-pteridinyl)methyl]amino]benzoyl]- (9CI) Folic acid (D-IsoMer) N-[4-[[(2-AMino-1,4-dihydro-4-oxo-6-pteridinyl)Methyl〕aMino〕 benzoyl〕-D-GlutaMic acid (4-((S)-2-(4-(((2-amino-4-oxo-4,8-dihydropteridin-6-yl)methyl)amino)benzamido)-4-carboxybutanamido)benzoyl)-L-glutamic