dye|World dye variety

Name:C.I.Direct Orange 63,C.I.25030

Molecular Structure: Stilbenes,Single azo class

C.I.Direct Orange 63,C.I.25030,CAS 1325-31-1,533.49,C21H17N3Na2O7S2

Molecular Formula:C₂₁H₁₇N₃Na₂O₇S₂

Molecular Weight: 533.49

CAS Registry Number:1325-31-1

Manufacturing Methods :  (E)-2-(2-sulfo-4-nitrostyryl)-5-nitrobenzenesulfonic acid diazo, coupled with phenol, again, then methylation hydroxyl with glucose will nitro reduction.

Properties and Applications:  bright orange. Soluble in water for gold orange, slightly soluble in alcohol. The strong sulfuric acid for navy, Red sauce for diluted. The dye solution to join strong hydrochloric acid for hidden cyan, have precipitation. Add thick sodium hydroxide solution for red orange, precipitation.

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