C.I. Direct Red 191

C.I. Direct Red 191 structure

CAS No.: 12167-52-1

Chemical Name:: C.I. Direct Red 191

Synonyms: Direct Red 191;C.I. Direct Red 191;C.I.Direct Red 191:C.I.17900

CBNumber:: CB34773132

Molecular Formula:

Molecular Weight:: 0

MDL Number:

MOL File:: Mol file

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C.I. Direct Red 191 Chemical Properties,Uses,Production

Preparation

Amino acid methyl diazo, coupled with N,N’-bis(4-hydroxy-2-sulfonaphthalene-7-yl)urea.

Properties and Applications

yellow light red. Soluble in water for yellow light red, slightly soluble in ethanol and soluble fiber element, insoluble in other organic solvents. The strong sulfuric acid to red light purple, diluted for colourful red. The dye solution to join a little red 10% sulfuric acid solution; Add 10% sodium hydroxide solution for shallow blue light purplish red color.

Standard	Acid Resistance	Alkali Resistance	Light Fastness	Soaping		Water
				Fading	Stain	Fading	Stain
AATCC	5	5	5	2		4

C.I. Direct Red 191 Preparation Products And Raw materials

Raw materials

6,6'-Ureylene-bis(1-naphthol-3-sulfonic acid)

Preparation Products

12167-52-1(C.I. Direct Red 191)Related Search:

Direct Red 180 1-Chloro-8-hydroxy-7-[4-(6-methylbenzothiazol-2-yl)phenylazo]naphthalene-3,6-bis(sulfonic acid sodium) salt Benzoic acid, 5-[[4-[(2,4-dihydroxyphenyl)azo]-3-sulfophenyl]azo]-2-hydroxy-, disodium salt C.I. Direct Red 187 2-Naphthalenesulfonic acid, 3-[[2,5-dimethyl-4-[(4-sulfophenyl)azo]phenyl]azo]-4-hydroxy-7-[[[(5-hydroxy-7-sulfo-2-naphthalenyl)amino]carbonyl]amino]-, trisodium salt

BENZOPURPURIN 4B Direct red 194 (C.I. 35785) Direct Red 181 2-Hydroxy-5-[[5-hydroxy-6-[(2-sodiooxycarbonylphenyl)azo]-7-sodiosulfo-2-naphthalenyl]azo]benzoic acid sodium salt

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C.I. Direct Red 191 Direct Red 191 C.I.Direct Red 191:C.I.17900 12167-52-1