dye|World dye variety

Name:C.I.Direct Red 103,C.I.34025

Molecular Structure: Multi-azo class

C.I.Direct Red 103,C.I.34025,CAS 6388-25-6,871.72,C32H20N9Na3O11S3,Sirius Corinth B

Molecular Formula:C₃₂H₂₀N₉Na₃O₁₁S₃

Molecular Weight: 871.72

CAS Registry Number:6388-25-6

Manufacturing Methods : 2-Aminobenzene-1,4-disulfonic acid diazo, and Naphthalen-1-amine coupling, again diazo, and 8-Aminonaphthalene-2-sulfonic acid coupling, its product to diazo, and 4-Nitrobenzene-1,3-diamine coupling .

Properties and Applications: dark red blue light. Soluble in water into wine red to Claret, slightly soluble in alcohol. The strong sulfuric acid for blue or gray, red sauce after dilution. The dye solution to join strong hydrochloric acid have red light brown precipitation; With strong sodium hydroxide solution have orange brown precipitation

List of Suppliers:

Sirius Corinth B ( Aktiengesellschaft für Anilin-Fabrikation )