Direct Brown 148

Direct Brown 148 structure

CAS No.

Chemical Name:: Direct Brown 148

Synonyms: Direct Brown 148;C.I.Direct Brown 148:C.I.25265

CBNumber:: CB59702946

Molecular Formula:

Molecular Weight:: 0

MDL Number:

MOL File:: Mol file

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Direct Brown 148 Chemical Properties,Uses,Production

Preparation

N,N’-bis(3-aminophenyl)urea?double nitriding, first and 2,4-Diaminobenzenesulfonic acid coupling, again with Resorcinol coupling.

Properties and Applications

brown. Slightly soluble in water for yellow brown, slightly soluble in alcohol. The strong sulfuric acid in red orange for brown, diluted yellow brown to orange for brown. The dye solution was added concentrated hydrochloric acid with red brown precipitate; Add thick sodium hydroxide solution for yellow brown to orange brown; Sodium hydroxide solution to dilute the same color.

Standard	Acid Resistance	Alkali Resistance	Light Fastness	Soaping		Water
				Fading	Stain	Fading	Stain
AATCC	3	4	2	3		3

Direct Brown 148 Preparation Products And Raw materials

Raw materials

2,4-Diaminobenzenesulfonic acid Resorcinol N,N'-bis(3-aminophenyl)urea

Preparation Products

(Direct Brown 148)Related Search:

Benzenesulfonic acid, 4-amino-2-[(2,4-diaminophenyl)azo]-5-[[3-[(2,4-diaminophenyl)azo]phenyl]azo]-, monosodium salt C.I. Direct brown 151, disodium salt C.I. Direct brown 14 Direct Brown 146 2-Naphthalenesulfonic acid, 6-[(2,4-diaminophenyl)azo]-3-[[3-[(2,4-diaminophenyl)azo]phenyl]azo]-4-hydroxy-, monosodium salt

Benzenesulfonic acid, 3,3'-(carbonyldiimino)bis[6-[(2,4-diaminophenyl)azo]-, disodium salt C.I. Direct Brown 149 C.I. Direct Brown 150

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Direct Brown 148 C.I.Direct Brown 148:C.I.25265