ChemicalBook Product Catalog Dyes and Pigments dye Direct Dyes Direct Grey D

Direct Grey D

Direct Grey D Basic information
Product Name:Direct Grey D
Synonyms:sodium 6-amino-3-[[4-[(4-aminophenyl)azo]-4-methoxy-m-tolyl]azo]-4-hydroxynaphthalene-2-sulphonate;Direct Black 17;Direct Black 17 (27700);Direct Grey D;2-Naphthalenesulfonic acid, 6-amino-3-4-(4-aminophenyl)azo-2-methoxy-5-methylphenylazo-4-hydroxy-, monosodium salt;CIDIRECTBLACK17;Direct grey 17;2-naphthalenesulfonic acid, 6-amino-3-((4-((4-aminophenyl)azo)-2-methoxy-5-meth
CAS:2945-96-2
MF:C24H23N6NaO5S
MW:530.53
EINECS:220-955-9
Product Categories:Organics;Dyes and Pigments
Mol File:2945-96-2.mol
Direct Grey D Structure
Safety Information
MSDS Information
Direct Grey D Usage And Synthesis
UsesDirect Black 17 (CAS# 2945-96-2) is an organic azo dye. When coordinted to Cu(II) metal centers, direct black 17 aids in the polarization of light in the near-UV region and visible spectra.
Preparation(a) 4-Nitrobenzenamine diazo, and 2-Amino-4-methylanisole coupling, again diazo, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid?coupling, and then will the nitro reduction for amino; (b) N-(4-aminophenyl)acetamide diazo, and 2-Amino-4-methylanisole close, then diazo, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid acid hydrolysis, then three amino acetylcholine.
Properties and Applicationsgreen light gray to green and black. Black powder. Soluble in water for violet black, 80 ℃ in the solubility of 20 g/L, soluble in ethanol gray light purple. The strong sulfuric acid is a deep blue in green, orange brown after diluted precipitation. The dye solution to join strong hydrochloric acid for dark brown, have precipitation; ?Adding concentrated sodium hydroxide solution in gray light purple precipitate. Cellulose fiber of dyeing, the dye absorption rate as well, in 40 ~ 80 ℃ maximum of affinity, discharge the gender is good. Used for cotton or viscose dyeing, is not used for printing. Can also be used for silk, PVA, polyamide fiber and its blended fabric dyeing.
Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 2 3-4 3 2 2
AATCC 5 3 3 3 3
Direct Scarlet 4BE C.I.Direct Green 1 Direct Bordeaux BE Direct Fast Brown S-BR C.I.Direct Yellow 50 Polysaccharide Direct Grey GL Epimedium P.E Icariin 10%,20% HPLC Direct Grey D Direct Grey Light Fast DIRECT GREY 112 Direct Grey AC DISPERSE DIAZO BLACK 3BF Direct Grey RLN Direct Grey GLL/OBN Direct Grey B Alizarine Direct Grey BB 2-Naphthalenesulfonic acid, 6-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-3-[[4-[[4-[[7-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]phenyl]amino]-3-sulfophenyl]azo]-4-hydroxy-, trisodium salt
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