This standard specifies the requirements, test methods, inspection rules and labeling, packaging, transportation, storage, etc. of feed additive folic acid. This standard applies to folic acid products produced by chemical synthesis, which are used as vitamin feed additives in the feed industry. Chemical name: N-[4-[(2-amino-4-oxo-1,4-dihydro-6-pteridine)methylamino]benzoyl]-L-glutamic acid Molecular formula: C19H19N7O6 Relative molecular mass: 441.40 (according to the international relative atomic mass in 1999) Structural formula: