Glyoxylic acid is a basic organic chemical material. Ethyl vanillin made from glyoxylic acid is widely used in perfumery and fixatives for cosmetics, daily chemical essences, and food flavoring. Allantoin made from glyoxylic acid is used as a good healing agent for skin wounds, additives for high-end cosmetics, and plant growth regulators. In medicine, glyoxylic acid is used as a raw material for the preparation of p-hydroxyphenylglycine (oxyampicillin and cephalexin), and p-hydroxyphenylacetamide (used as an effective substance for the treatment of cardiovascular disease and hypertension-attil) , As well as pharmaceutical products such as p-hydroxyphenylacetic acid and p-hydroxyphenylhein.