API & Intermediate

L-proline is one of the eighteen amino acids synthesized by human body. It is colorless to white crystal or crystalline powder at room temperature. It is slightly smelly and sweet. It is very soluble in water, insoluble in ethanol, and insoluble in ether and n-butanol. L-proline is used in biochemical research, medicine for malnutrition, protein deficiency, gastrointestinal diseases, burns and postoperative protein supplement. It can also be used as flavoring agent, which can react with sugar to form special flavoring substance. This product can be used as food additives, flavors and fragrances, nutritional supplements, chemical reagents, pharmaceutical raw materials.

Rosuvastatin calcium is an anti hyperlipidemic drug, which is a HMG CoA reductase inhibitor. It is successfully developed by AstraZeneca in the UK. It is suitable for the treatment of a variety of lipid disorders, including hypercholesterolemia, mixed lipid disorders and simple hypertriglyceridemia. Rosuvastatin calcium is one of the most effective and comprehensive lipid-lowering drugs on the market. Compared with the most effective atorvastatin in the world, rosuvastatin calcium has better effects in reducing LDL-C and increasing HDL-C, and has better tolerance, lower side effects and unique pharmacokinetic characteristics. Its half-life is about 20h, Just take it once a day.

Gallic acid has many uses in pharmacy, ink, dye, food, light industry and organic synthesis. Gallic acid and ferric ion form blue black precipitate, which is the raw material of blue black ink; It is also used in leather industry; It can also be used as photographic developer. Propyl gallate as antioxidant can be used in edible oil to prevent odor deterioration. In medicine, gallic acid is a hemostatic astringent and a local stimulant of mild chemical book. Application: it has antibacterial effect and can treat bacillary dysentery. It has the functions of astringency, hemostasis and antidiarrhea. It can be used as preservative. It can prepare pyrogallic acid, medicine, ink, mordant dye and explosion-proof agent. It is also used as a developer and analytical reagent for the detection of free inorganic acids, dihydroxyacetone, alkaloids and metals. It can be used as preservative, medium dye and explosion-proof agent.

Rutin, a rutin glycoside of quercetin, is a kind of flavonoids extracted from plants. It exists in rutin, tartary buckwheat, Sophora bud, Catalpa bungei leaves, tomato stems, leaves and seed shells. The main uses of rutin are as follows: 1. Food additive: it can be used as food pigment (like lemon yellow), antioxidant and nutritional supplement, mainly used in cold drinks, beverages, pastries, meat products, aquatic products, etc. 2. Vitamins: it can reduce the permeability and fragility of capillaries, maintain and restore the normal elasticity of capillaries. It is used for prevention and treatment of hypertensive cerebral hemorrhage, diabetic retinal hemorrhage and hemorrhagic purpura. 3. It has anti-inflammatory effect; Vitamin P has the effect of maintaining vascular resistance, reducing permeability and brittleness. It has the effect of removing fat in fatty liver, especially in combination with glutathione; Antiviral effect and inhibition of aldose reductase.

In addition to being used as an anthelmintic, levamisole hydrochloride also has immunomodulatory effect, which can effectively improve the immune function of patients. Levamisole can regulate the immune function, mainly on T lymphocytes, to induce the early differentiation and maturation of T cells into functional T cells, so as to promote the normal function of T cells. It can also strengthen the phagocytosis and chemotaxis of macrophages, so as to improve the activity of natural killer cells, produce endogenous interferon, improve the immune function and make it normal, and effectively prevent the progress of pneumonia, Improve cough, lung sounds and other symptoms. In addition, after the immune function of children is weakened, levamisole hydrochloride can increase the content of total complement in blood, especially the production of IgG and IgA, so as to improve the immune effect of respiratory tract Ru membrane, and play the role of virus resistance and anti bacterial infection. Levamisole can not only regulate the immune function, but also restore the immune function. It can show two-way regulation for the abnormal humoral immune function, make it tend to normal development, and help the low cellular immune function return to normal.