Direct blue 9 (C.I. 24155)
- CAS NO.:6428-98-4
- Empirical Formula: C34H27N4NaO13S3
- Molecular Weight: 818.77
What is Direct blue 9 (C.I. 24155)?
Preparation
3,3′-Dimethoxylbenzidine double nitriding, first and 3-Hydroxynaphthalene-2,7-disulfonic acid coupled , and then 4-Hydroxynaphthalene-1-sulfonic acid coupling.
Properties and Applications
blue. Soluble in water, soluble in alcohol. The strong sulfuric acid for blue, blue after diluted precipitation. The dye water solution is blue, to join the hydrochloric acid have precipitation of dark; Add sodium hydroxide solution for purplish red color.
Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
Fading | Stain | Fading | Stain | ||||
ISO | 3-4 | 4 | 2 | 1-2 | 2 |
Safety information for Direct blue 9 (C.I. 24155)
New Products
(R)-tert-butyl (4-methyl-1-oxopentan-3-yl)carbamate Tubulysin M Tubulysin D Tubulysin B Tubulysin I Diethyl Aluminium Cyanide (1.0 M in Toluene) Methyl (R)-1-Boc-4,4-difluoropyrrolidine-2-carboxylate 2-(azetidin-3-ylidene)acetonitrile (hydrochloride) 1,2,3,6-TETRAHYDROPYRIDINE HYDROCHLORIDE 3-N-BOC-(S)-AMINO BUTYRONITRILE 3-METHYLAZETIDIN-3-OL HYDROCHLORIDE 4,4-DIFLUOROPIPERIDINE Calcium Sodium Phosphosilicate IH 2-(1-(Mercaptomethyl) cyclopropyl) acetonitrile Fuel shell 2-[2-[3(S)-3[2-(7-chloro-2-quinolinyl) ethenyl] phenyl-3- hydroxyl propyl] phenyl]-2-propanol (1R,2S)-2-(3,4-Difluorophenyl)cyclopropanamine 2-[[(3aR,4S,6R,6aS)-6-Aminotetrahydro-2,2-dimethyl-4H-cyclopenta-1,3-dioxol-4-yl]oxy]ethanol ethanedioate 7-chloro-1- (2-methyl-4- nitrobenzoyl)-3,4- dihydro-1H-benzo[b] azepin-5(2H)-one 3-(4-Chloro-butyryl) -1H-indole-5- carbonitrile Lubiprostone Magnesium Trisilicate Latanoprostene Bunod Flame Retardant Zinc BorateRelated products of tetrahydrofuran
tetrasodium [mu-[[3,3'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4,5-dihydroxynaphthalene-2,7-disulphonato]](8-)]]dicuprate(4-)
Direct Blue 82
Direct blue 83 (C.I. 34230)
C.I. Direct Blue 85
DIRECT BLUE 80
DIRECT BLUE 90
trisodium [29H,31H-phthalocyaninetrisulphonato(5-)-N29,N30,N31,N32]cuprate(3-)
SIRIUS SUPRA BLUE
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