dye|World dye variety

Name:C.I.Mordant Blue 56,C.I.51120

Molecular Structure: oxazine class

C.I.Mordant Blue 56,C.I.51120,CAS 61159-35-1,444.46,C20H20N4O6S,Alizarine Sky BlUe GL

Molecular Formula:C₂₀H₂₀N₄O₆S

Molecular Weight: 444.46

CAS Registry Number:61159-35-1

Manufacturing Methods :  commonly known as Delphine Blue. aniline and mordant Gallocyanine [by excessive amounts of N,N-dimethyl-4-nitrosobenzenamine and Gallic acid Methanol in the reaction (in ethanol in reaction incomplete) and be] hydrochloride heating, sulfonation and translated into sodium salt. Note: in order to improve yield, in heating to prevent leuco – mordanting Gallic acid formation (the leuco not with  aniline condensation), to the mixture blast air.

Properties and Applications:  green blue. Soluble in water for blue purple. In concentrated sulfuric acid to red light purple, dilution of dark after precipitation. Dye aqueous solution to join sodium hydroxide have red precipitation.

List of Suppliers:

Alizarine Sky BlUe GL ( American Aniline Products Inc.  )