56670-83-8

Basic information

• Product Name: 2-Anthracenesulfonic acid, 9,10-dihydro-1-hydroxy-9,10-dioxo-
• CAS NO: 56670-83-8
• Molecular Formula: C14H8O6S
• Molecular Weight: 304.28
• Mol File: 56670-83-8.mol

Chemical Properties

• CAS DataBase Reference: 2-Anthracenesulfonic acid, 9,10-dihydro-1-hydroxy-9,10-dioxo-(CAS DataBase Reference)
• NIST Chemistry Reference: 2-Anthracenesulfonic acid, 9,10-dihydro-1-hydroxy-9,10-dioxo-(56670-83-8)
• EPA Substance Registry System: 2-Anthracenesulfonic acid, 9,10-dihydro-1-hydroxy-9,10-dioxo-(56670-83-8)

Safety Data

• Hazardous Substances Data: 56670-83-8(Hazardous Substances Data)

Usage

Class

Anthracene derivatives

Physical Appearance

White to light yellow powder

Primary Uses

Fluorescent dye
Reagent for detection and determination of various compounds
Synthesis of pharmaceuticals, agrochemicals, and pigments

Additional Applications

pH indicator
Manufacturing of optical brightening agents and fluorescent whiteners

Safety Precautions

Handle with care and follow safety guidelines due to potential harmful effects if not handled properly.

Upstream product

• 129-43-1 1-hydroxyanthraquinone 

Relevant articles and documents

SELECTIVITY IN THE SULFONATION OF 1,5- AND 1,8-DIHYDROXY-ANTHRAQUINONES AND THEIR BORATE COMPLEXES

As follows from determination of the rate constants, 1,5-dihydroxyanthraquinone surpasses 1,8-dihydroxyanthraquinone and also 1-hydroxyanthraquinone in the ease of sulfonation at the ortho position to the hydroxy group but is consumed much more slowly during sulfonation in sulfuric acid or oleum as a result of the higher basicity, which gives rise to a lower concentration of the reactive unprotonated form.The addition of boric acid completely prevents sulfonation of 1,5-dihydroxyanthraquinone, which is combined into an inert diborate complex, whereas in the form of a monoborate complex 1,8- dihydroxyantraquinone can be converted selectively into 1,8-dihydroxyanthraquinone-2-sulfonic acid.