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必应染料-您身边的染料专家

Direct Green 23

Name:C.I.Direct Green 23,C.I.31985

Molecular Structure: trisazo class

C.I.Direct Green 23,C.I.31985,CAS 13102-26-6,1148.00,C45H33N7Na4O16S4,Sirius Supra Olive GL

C.I.Direct Green 23,C.I.31985,CAS 13102-26-6,1148.00,C45H33N7Na4O16S4,Sirius Supra Olive GL

Molecular Formula:C45H33N7Na4O16S4

Molecular Weight: 1148.00

CAS Registry Number:13102-26-6

Manufacturing Methods : 2-(2-Sulfo-4-nitrostyryl)-5-aminobenzenesulfonic acid diazo, coupled with phenol, then methylation, will the Nitro reduction, product diazo, and 5-Amino-7-ehtoxy-2-naphthalenesulfonic acid coupling, its product to diazo, and 8-Acetamido-1-naphthol-5-sulfonic acid coupling, and finally into copper complex. In the copper complexation processes, ethoxy group may be substituted with hydroxy.

Properties and Applications:  olive green. Soluble in water for Yellow olive green, not soluble in alcohol. The strong sulfuric acid to red light brown, diluted red for sauce. The dye solution with strong hydrochloric acid have blue-ray gray precipitation; Add thick sodium hydroxide solution have olive green precipitation.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 3 3-4 6 3 3

List of Suppliers:

Sirius Supra Olive GL( Bayer Group )


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