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Direct Red 257

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Direct Red 257 Basic information
Product Name:Direct Red 257
Synonyms:Direct Red 257;C.I.Direct Red 257:C.I.291755
CAS:
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MW:0
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Mol File:Mol File
Direct Red 257 Structure
Direct Red 257 Chemical Properties
Safety Information
MSDS Information
Direct Red 257 Usage And Synthesis
Preparation4-Aminobenzenesulfonic acid (2 Moore) diazo, and N,N’-bis(4-hydroxy-2-sulfonaphthalene-7-yl)urea coupling, and then into 2-(2-Hydroxyethylamino)ethanol(C.I. 29176) (the components of the dye content is 25%). 4-Amino-5-methoxy-2-methylbenzenesulfonic acid (2 Moore) diazo, and N,N’-bis(4-hydroxy-2-sulfonaphthalene-7-yl)urea coupling, and then into?2-(2-Hydroxyethylamino)ethanol?(C.I. 29177) (the components of the dye content is 75%).
Properties and Applicationsred. Mainly used for paper color
Tag:Direct Red 257 Related Product Information
Direct Red 243:1 2-Naphthalenesulfonic acid, 7-[[4,6-bis[(2-hydroxyethyl)amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[2-[4-[2-(4-sulfophenyl)diazenyl]phenyl]diazenyl]-, sodium salt (1:2) C.I. Direct Red 259 Direct Red 242 2-[[1-Hydroxy-6-[[[[5-hydroxy-6-[(2-hydroxy-5-nitrophenyl)azo]-7-sulfo-2-naphtyl]amino]carbonyl]amino]-3-sulfo-2-naphtyl]azo]benzoic acid trisodium salt DIRECT RED 254 DIRECT RED 243 Direct Red 255 DIRECT RED 26