2903-89-1

Basic information

• Product Name: 2,2'-Bi[3H-indole]-3,3'-dione
• Synonyms: 2,2'-Bi[3H-indole]-3,3'-dione;Dehydroindigo
• CAS NO: 2903-89-1
• Molecular Formula: C₁₆H₈N₂O₂
• Molecular Weight: 260.24692
• Mol File: 2903-89-1.mol
• Article Data: 2

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 2,2'-Bi[3H-indole]-3,3'-dione(CAS DataBase Reference)
• NIST Chemistry Reference: 2,2'-Bi[3H-indole]-3,3'-dione(2903-89-1)
• EPA Substance Registry System: 2,2'-Bi[3H-indole]-3,3'-dione(2903-89-1)

Safety Data

• Hazardous Substances Data: 2903-89-1(Hazardous Substances Data)

Upstream product

• 64784-13-0 indigo 
• 908835-88-1 2,2'-diacetoxy-1,2,1',2'-tetrahydro-[2,2']biindolyl-3,3'-dione 
• 71-43-2 benzene 
• 64-19-7 acetic acid 
• 482-89-3 1H,1H'-2,2'-Biindolylidene-3,3'-dione 
• 108-88-3 toluene 
• 64-17-5 ethanol 
• 110-86-1 pyridine 

Downstream Products

• 482-89-3 1H,1H'-2,2'-Biindolylidene-3,3'-dione 
• 91-56-5 indole-2,3-dione 
• 61-71-2 dioxindol 

Relevant articles and documents

Synthesis of the first deprotected indigo N-glycosides (blue sugars) by reductive glycosylation of dehydroindigo

The first deprotected indigo N-glycosides (blue sugars) have been prepared by reaction of dehydroindigo with in situ generated rhamnosyl, glucosyl and mannosyl iodide.

Maya Blue as a nanostructured polyfunctional hybrid organic-inorganic material: The need to change paradigms

Maya Blue, an ancient nanostructured organic-inorganic hybrid material resulting from the attachment of indigo, a natural dye, to a phyllosilicate clay, palygorskite, has received considerable attention of late. Despite intensive research, several aspects