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C.I. Direct Red 191

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C.I. Direct Red 191 Basic information
Product Name:C.I. Direct Red 191
Synonyms:C.I. Direct Red 191;Direct Red 191;C.I.Direct Red 191:C.I.17900
CAS:12167-52-1
MF:
MW:0
EINECS:601-799-4
Product Categories:
Mol File:Mol File
C.I. Direct Red 191 Structure
C.I. Direct Red 191 Chemical Properties
Safety Information
MSDS Information
C.I. Direct Red 191 Usage And Synthesis
PreparationAmino acid methyl diazo, coupled with N,N’-bis(4-hydroxy-2-sulfonaphthalene-7-yl)urea.
Properties and Applicationsyellow 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 materials6,6'-Ureylene-bis(1-naphthol-3-sulfonic acid)
Tag:C.I. Direct Red 191(12167-52-1) Related Product Information
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