dye|World dye variety

Name:C.I.Acid Yellow 33,C.I.13115

Molecular Structure: Single azo class

C.I.Acid Yellow 33,C.I.13115,CAS 8015-08-5,499.43,C22H14N5NaO6S,Silk Yellow R

Molecular Formula:C₂₂H₁₄N₅NaO₆S

Molecular Weight: 499.43

CAS Registry Number:8015-08-5

Manufacturing Methods :  6-Aminonaphthalene-1-sulfonic acid diazo, with Diphenylamine coupling, then use the sodium nitrate processing, generation N-and the nitro derivatives, and then to nitration (also used a mixture of 6-Aminonaphthalene-1-sulfonic acid and 8-Aminonaphthalene-1-sulfonic acid in place of 6-Aminonaphthalene-1-sulfonic acid).

Properties and Applications: red light yellow. Used for wool, silk, vinegar fiber dyeing. Tannin mordant dyeing can improve the wet process fastness.

List of Suppliers:

Silk Yellow R( IG Farbenindustrie AG )