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Glycine is a non-essential amino acid for the human body. It has both acidic and basic functional groups in the molecule. It can be ionized in water and has strong hydrophilicity.

Sulfamethazine is used as a feed additive to prevent and treat the infection of Staphylococcus and Streptococcus hemolyticus, that is, it mainly treats avian cholera, avian typhoid fever, and chicken coccidiosis.

Proline or L-proline is an amino acid required by the body to produce collagen and cartilage. It keeps muscles and joints flexible, and has the effect of reducing skin sagging and wrinkling caused by UV exposure and normal aging.

Vitamin b6 is an essential substance for human body fat and sugar metabolism. Women also need vitamin b6 for estrogen metabolism. Therefore, it is of great benefit to the prevention and treatment of certain gynecological diseases.

L-Valine is an essential amino acid of the human body. It acts on the corpus luteum, breast and ovaries. Its deficiency will cause protein synthesis disorders in the body, dysfunction of the central nervous system in mice, and corresponding organ and tissue dysfunction, ataxia and tremor of the limbs.

Vitamin B2 may not be understood by many people, but vitamin B2 has many effects on our body. Our human body cannot synthesize vitamin B2 by itself. It can only be obtained from some foods.

Griffonia seed extract is a shrub plant belonging to the genus Leguminosae, Yunshi subfamily, and Ghana Seed. It is native to West African countries such as Ghana, Ivory Coast, Côte d’Ivoire and Togo.

Lipoic acid, whose molecular formula is C8H14O2S2, is an organic compound that can be used as a coenzyme to participate in acyl transfer in the body's material metabolism, and can eliminate free radicals that cause accelerated aging and disease.

Ferulic acid has gradually begun to be applied in the field of beauty cosmetics, especially its whitening, freckle removal, sun protection and other functions, which have injected new vitality into the rapidly advancing modern cosmetics industry.

Take 8.7g (0.05 mol) 3-carbonyl-4-methyl-tetrahydrothiophene-2-carboxylic acid methyl ester, add a certain amount of acetonitrile, stir and heat to reflux, then add 3.5g (0.05 mol) hydroxylamine hydrochloride to react.