Folic acid is Vitamin Bc made up of 2-amino-4-hydroxyl-6-methylpterin para-amino benzoic acid and glutamic acid transforming into tetrahydro-folic acid in the human body the ones that participated in formatting amino acid and nucleic acid .

叶酸（ FolicAcid）系由2-氨基-4-羟基-6-甲基蝶呤、对氨基苯甲酸及谷氨酸组成的水溶性B族 维生素，在人体内转化成四氢叶酸，参与氨基酸及核酸的合成。