How to classify pharmaceutical intermediates? The so-called pharmaceutical intermediates are actually chemical raw materials or chemical products used in the synthesis of drugs. Such chemical products can be produced in ordinary chemical plants without obtaining a drug manufacturing license. As long as the technical indexes meet certain level requirements, they can be used to participate in the synthesis and manufacture of drugs. Although the synthesis of drugs is also part of the chemical industry, it is more stringent than the general chemical products. That is, manufacturers of edibles and APIs must undergo GMP certification, while manufacturers of intermediates do not. Since intermediates are only the synthesis and production of chemical raw materials, they are relatively basic and lower end of the drug production chain and cannot be called drugs. Therefore, GMP certification is not required, which lowers the industry entry barrier for intermediate manufacturers.

　　Pharmaceutical intermediates can be divided into antipyretic and analgesic drug intermediates, cardiovascular system drug intermediates and other categories according to their application areas. There are many kinds of specific pharmaceutical intermediates, such as imidazole, furan, phenolic intermediates, aromatic intermediates, pyrrole, pyridine, biochemical reagents, sulfur, nitrogen, halogen compounds, heterocyclic compounds, starch, mannitol, microcrystalline cellulose, lactose, dextrin, ethylene glycol, powdered sugar, inorganic salts,,, ethanol intermediates, stearate, amino acids, ethanolamine, potassium salts, sodium salts and other intermediates, etc.