dye|World dye variety

Name:C.I.Direct Red 117,C.I.28230

Molecular Structure: Double azo class

C.I.Direct Red 117,C.I.28230,CAS 5938-85-2,690.62,C29H20N6Na2O8S2,Diazophenyl Red 7BL

Molecular Formula:C₂₉H₂₀N₆Na₂O₈S₂

Molecular Weight: 690.62

CAS Registry Number:5938-85-2

Manufacturing Methods : 4-((4-Aminophenyl)diazenyl)benzenesulfonic acid diazo, and 7-(4-Aminobenzamido)-4-hydroxynaphthalene-2-sulfonic acid coupling.

Properties and Applications: blue-ray red. Soluble in water for blue-ray red. The strong sulfuric acid for blue-ray purple, dilute red after brown precipitation. The dye solution to join strong hydrochloric acid with brown precipitation; Add thick sodium hydroxide solution for blue purple.

List of Suppliers:

Diazophenyl Red 7BL( Ciba Specialty Chemicals Inc )