Protocatechuic acid (PCA), also named 3,4-dihydroxybenzoic acid. It exists in the leaves of Euphorbiaceae ferns, llex and other plants, and it has antimicrobial effect. Protocatechuic acid has a density of 1.54g/cm3 and a melting point of about 200 C. It is soluble in hot water, ethanol, ether, acetone and ethyl acetate, slightly soluble in cold

Protocatechuic acid exists in many vegetables and fruits in nature, and is an effective active ingredient in many traditional Chinese medicines (such as Salvia miltiorrhiza, Hibiscus, etc.). Protocatechuic acid is a water-soluble phenolic acid component and active substance of many traditional Chinese medicines. It not only has pharmacological activities such as anti-platelet agglutination, reducing myocardial

Dihydrocaffeic Acid,which also named 3,4-dihydroxyphenylpropionic acid, is a white crystalline powder, soluble in methanol, ethanol, DMSO and other organic solvents, and comes from Eucommia ulmoides, Salvia miltiorrhiza, artichoke, Atractylodes macrocephala, Glechoma longituba, and has strong antioxidant activity. There was a study which published in the Journal Nature Communications, in which scientists described an extensive analysis

P-hydroxyacetone, which also called 4′-Hydroxyacetophenone in English, and commonly known as fir phenol, it would be White acicular crystals, combustible and easy to dissolve in hot water when it is at room temperature. It is a natural plant extract, which exists in the stems and leaves of Artemisia annua, Artemisia annua, Rhizoma Scopariae and the roots of Ginseng

Hydroxytyrosol is one of the metabolites of dopamine in animals’ brain, as well as a polyphenolic compounds with strong antioxidant activity in olive oil. Many studies showed that hydroxytyrosol has a great biological effect, which mainly including broad-spectrum antimicrobial activity, prevention of direct damage to multiple free radicals and ultraviolet-induced oxidative stress (protein oxidation and

Generic Peptides is a kind of medicines which has a fast growth of market, at present, there are more than 100 Peptide products were permitted be on the market all over the world, in recent years, the market of Generic Peptides’ growth has arrived beyond 12%, which is higher than the whole medicine market, It

Bromination is a normal reaction of organic synthesis. The most used brominating agent is mixing liquid bromide,chloroform,carbon tetrachloride, dimethyl sulfoxide or acetic acid and water up. However, bromine is a kind of toxic liquid which has the characteristic volatile, and it usually causes some unnecessary substitution and oxidation reaction in organic synthesis. It ‘ s

Methyl phenylacetate, molecular formula:C9H10O2,CAS No.: 101-41-7. It’ s appearance is colorless to light yellow oily liquid, with a strong sweet, smooth fragrance, as well as the fragrance of pogostemon. It does not soluble in water, oil, alcohol and most organic solvents. By the way, it naturally exists in coco, coffee and strawberries, and also exists

Ethyl bromoacetate, is colorless to yellow liquid, toxic; melting point is -13.8℃; boiling point is 158.8℃; relative density is 1.51; flash point is 47.8℃; insoluble in water, insoluble in ethanol, ether, soluble in benzene and acetone. It is used for organic synthesis and military poisonous gases. It has strong irritation to human eyes, skin, mucosa

3-Hydroxytyramine hydrochloride (CAS: 62-31-7), white acicular crystalline or crystalline powder; soluble in water, methanol and hot 95% ethanol, soluble in sodium hydroxide solution, insoluble in ether, chloroform, benzene; odorless, slightly bitter. Used for making pressure-boosting drugs and biochemical reagents. It is obtained by opening the ring of ethylpiperine. Ethylpiperine and phenol were added to the