1,4-Dihydroxyanthraquinone CAS 81-64-1

What is 1,4-Dihydroxyanthraquinone ？

Those that precipitate from acetic acid are orange crystals. Appropriate amount of it dissolves in ethanol and turns red, dissolves in ether and turns brown and yellow fluorescence, dissolves in caustic alkali and ammonia and turns purple. Using phthalic anhydride and p-chlorophenol as raw materials, the two are condensed, ring closed, and hydrolyzed to obtain the product. After filtering, drying and crushing, the finished product is obtained. Phthalic anhydride and hydroquinone can also be used as raw materials, and the product can be obtained through condensation and ring closure. After filtering, drying and crushing, the finished product is obtained.

Specification

Application

1. Intermediates used in the manufacture of vat dyes, disperse dyes and reactive dyes
2. Transparent Orange 2G is mainly used for oil coloring. It can also be used for coloring various plastics, resins and their products.
3. This product is an important dye intermediate. It is dispersed brown GL (C.I.58050). Used to produce dispersed blue HSR, dispersed blue 5R, dispersed blue B, dispersed deep blue RB, acidic anthraquinone blue R, weak acid brilliant blue RAW weak acid green GS, reduced gray BG, reduced brown BR, etc.; and used to produce intermediate 1, 4-Diaminoanthraquinone. 1,4-dihydroxyanthraquinone-2-sulfonic acid can be obtained by sulfonation of 1,4-dihydroxyquinone.
4. Organic synthesis, manufacturing anthraquinone reduced dyes and other intermediates. It is dispersed brown GL (C.I.58050).

Packing

25kg/bag