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[Chemical Knowledge]：What are the upstream raw materials for catechol? What do the downstream products contain?

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Catechol, also known as 1,2-benzenediol or catechol, is an important organic compound widely used in the field of chemical production raw materials. There are many upstream and downstream related products of catechol, and the following are some of the main upstream and downstream products:

upstream products:

1. Phenol: Phenol is one of the main raw materials of catechol, which can be converted into catechol through chemical reactions.

downstream products:

1. Epoxy resin: Catechol reacts with epichlorohydrin to generate epoxy resin, which is a thermosetting resin widely used in coatings, adhesives, composite materials and other fields.
2. phthalide: catechol reacts with acetone under acidic conditions to produce phthalide, which is an important organic intermediate and can be used to produce drugs, pesticides and so on.
3. Polycarbonate: Catechol can react with phosgene to form polycarbonate, which is a polymer material with excellent mechanical properties, heat resistance, weather resistance, etc., and is widely used in engineering plastics, auto parts and other fields.

In general, as an important organic compound, catechol has a wide range of applications in the field of chemical production raw materials, and its upstream and downstream related products are numerous, involving a wide range of fields.

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