Dibromoindigo

From CAMEO
Revision as of 10:12, 2 August 2013 by KStacy (talk | contribs) (Description)
Jump to: navigation, search
Powdered dibromoindigo

Description

A synthetic coal tar dye of the same composition (6,6'-dibromoindigo) as murex purple. Dibromoindigo was developed in 1904 causing the expensive natural product to became obsolete.

Synonyms and Related Terms

6,6'-dibromoindigo; CI 75800

Other Properties

Insoluble in organic solvents and water. Unaffected by alkalis. The color is lightfast except when exposed to nitric acid or chlorine bleaches.

CAS 17670-06-3

Authority

  • Helmut Schweppe, Schweppe color collection index and information book Comment: CI 75800, ammonia-sodium dithionite vat or sodium hydroxide-sodium dithionite vat

Retrieved from "http://cameo.mfa.org/index.php?title=Dibromoindigo&oldid=40149"