dye|World dye variety

Name:C.I.Direct Blue 37,C.I.24270

Molecular Structure: Double azo class

C.I.Direct Blue 37,C.I.24270,CAS 6655-98-7,1031.67,C34H20Cl2N4Na4O16S4

Molecular Formula:C₃₄H₂₀Cl₂N₄Na₄O₁₆S₄

Molecular Weight: 1031.67

CAS Registry Number:6655-98-7

Manufacturing Methods : 3,3′-Dimethoxylbenzidine double nitriding, and 8-Chloro-1-naphthol-3,6-disulfonic acid (2 Moore) coupled.

Properties and Applications: bright blue. Soluble in water for blue purple, not soluble in alcohol. The strong sulfuric acid for green light blue, for purple diluted. The dye solution to join hydrochloric acid soluble red light purple precipitate generated; Sodium hydroxide solution to join a cherry red.

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