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1,4-butanediol (1,4-BD) is a colorless, viscous liquid derived from butane by placement of alcohol groups at each end of its molecular chain and is one of four stable isomers of butanediol.1,4-BD has widespread industrial use. It is used in the production of spandex fibers, urethane elastomers, and copolyester ethers. Sizable quantities of 1,4-BD are also used to make gamma-butyrolactone (GBL), which has outlets in electronics, pharmaceuticals, and agrochemicals, as well as high-performance polymers. Miscellaneous uses include its use in solvents, coating resins, and as pharmaceutical intermediates...[More]

What is the difference between API (Active pharmaceutical ingredientes) and pharmaceutical intermediates?

API and raw material are often confused due to the similar usage of the two terms.

The main difference between the two is that the API is an active product that has completed the synthesis route, and the intermediate is a product in a certain place in the synthesis route.

Detailed explanation of API and pharmaceutical intermediates...[More]

Fine chemicals are inorganic or organic molecules produced in kilogram or tone quantities by conventional or biotechnological chemical processes in plants around the world. They are manufactured to exacting specifications and are an important part of the value chain for downstream applications, including everyday products that many consumers rely on. The process of developing and manufacturing fine chemicals is complex and often requires multi-step synthesis.

Types of fine chemicals...[More]