What are chemical raw materials? What is the difference between chemical raw materials and chemical products?

2021-12-17 17:14:45

1. What are chemical raw materials?

Chemical raw materials are various substances prepared by chemical synthesis, plant extraction or biotechnology for pharmaceutical use, but patients cannot take it directly. The drug processing in the powder, crystallization, extract state is made into a drug delivery form (such as tablets, capsules, injections, pills, ointments, etc.) that is convenient for patients to take. These drug delivery forms are called dosage forms of drugs.

Specific raw materials after processing - drug preparation The term "raw materials" is mainly related to preparations. The raw materials obtained by chemical processing are mainly used, and the raw materials for supplying finished medicines, such as cefpiro sulfate for injection is a medicine, and cefpiro sulfate is a raw medicine.

Raw materials are divided into two categories according to their source: chemical synthetic drugs and natural chemical drugs.

1. Chemical synthetic drugs can be divided into inorganic synthetic drugs and organic synthetic drugs. Inorganic synthetic drugs are inorganic compounds (some are elements), such as aluminum hydroxide, magnesium trisilicate, etc. used to treat gastric and duodenal ulcers; organic synthetic drugs are mainly drugs prepared from basic organic chemical raw materials and a series of organic chemical reactions (such as aspirin chloramphenicol, caffeine, etc.).

2. Natural chemical drugs can also be divided into two categories according to their source: biochemical drugs and phytochemical drugs. Antibiotics are generally made by microbial fermentation and belong to the biochemistry category. A variety of semi-synthetic antibiotics that have emerged in recent years are products that combine biosynthesis and chemical synthesis. Among raw materials, organic synthetic drugs account for the largest proportion of varieties, output and output value, and are the main pillar of the chemical pharmaceutical industry. The quality of raw materials determines the quality of the preparation, so its quality standards are very strict. Countries around the world have formulated strict national pharmacopoeia standards and quality control methods for the widely used raw materials.

2. What is the difference between chemical raw materials and chemical products?

Chemical raw materials are raw materials for producing various reagents, which are relatively pure and relatively small in quantity.

Chemical raw materials refer to various raw materials used in chemical industry, which may be composite raw materials, and the raw materials used to treat chemical products, and the purity is not that high.

Chemical raw materials refer to raw materials used to produce various preparations, chemical synthesis, plant extraction or biotechnology preparation processes.

There are many types of chemical raw materials and a wide range of uses.

There are as many as 5 to 7 million chemicals worldwide, more than 100,000 are sold and circulated on the market, and more than 1,000 new chemicals are available every year, and 150 to 200 of them are considered carcinogens.