6745-67-1

Name	4-Amino-3,6-bis[[4-[(2,4-diamino-5-methylphenyl)azo]phenyl]azo]-5-hydroxynaphthalene-2,7-disulfonic acid disodium salt
CAS	6745-67-1
MOL File	6745-67-1.mol

Synonyms

C.I.35260 Rayon Black R Direct Black 28 Cutamin Black CV C.I.Direct Black 28 Columbia Fast Black V C.I.Direct Black 28:C.I.35260 4-Amino-3,6-bis[[4-[(2,4-diamino-5-methylphenyl)azo]phenyl]azo]-5-hydroxynaphthalene-2,7-disulfonic acid disodium salt sodium,4-amino-3-[[4-[(2,4-diamino-5-methylphenyl)diazenyl]phenyl]diazenyl]-6-[[4-[(2,4-diamino-5-methylphenyl)diazenyl]phenyl]hydrazinylidene]-5-oxonaphthalene-2,7-disulfonic acid

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Hazard Information

Preparation

4-Nitrobenzenamine (2 Moore) diazo, one in acid conditions, a in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid (1 Moore) coupling, and then will the nitro reduction for amino, again diazo, and 4-Methylbenzene-1,3-diamine (2 Moore) coupled.

Properties and Applications

black. Soluble in water for blue-ray black, slightly soluble in ethanol is green. The strong sulfuric acid for blue-ray green, blue after diluted precipitation. The dye solution to join strong hydrochloric acid blue precipitation; Add thick sodium hydroxide solution for green light blue.

Standard	Acid Resistance	Alkali Resistance	Light Fastness	Soaping		Water
				Fading	Stain	Fading	Stain
ISO	2-3	5	3-4	1-2		2-3

Supplier

Hubei Jusheng Technology Co.,Ltd.

Telephone18871490254

Websitehttp://www.hubeijusheng.com

Shanghai Pleikon Chemical Technology Co., Ltd

Telephone021-021-54321516 17717324060

Websitehttps://www.chemicalbook.com/ShowSupplierProductsList31444/0.htm

career henan chemical co

Telephone+86-0371-86658258 +8613203830695

Websitehttps://www.coreychem.com/

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