Direct Blue 11
- Molecular Weight: 0
What is Direct Blue 11?
Preparation
2,5-Dichlorobenzenamine diazo, in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?coupling, 4-(4-Aminophenyl)benzenamine double nitriding, first in alkaline conditions and accidentally coupled nitrogen compounds, and then in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidcoupling.
Properties and Applications
dark blue. Soluble in water for dark green light blue, soluble in ethanol, insoluble in acetone and other organic solvents. The concentrated sulfuric acid is light to dark gray light blue, diluted dark red light for blue, precipitation. The dye solution to join a little red sulfuric acid 10%; Add thick sodium hydroxide solution to become red become colourful.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 5 | 4 | 2 | 3-4 | 3 | ||
| AATCC | 5 | 4 | 1-2 | 4 | 1 | ||
Safety information for Direct Blue 11
New Products
Paroxetine Impurity G/Paroxetine Related Compound E 2-Amino-5-bromo-4-(trifluoromethyl)pyridine（RM for Indian lab) 1-aminocyclopentane carbonitrile, HCl H-D-TRP(FOR)-OH HCL 9-Mesityl-10-methylacridinium perchlorate 3-Amino-3-(4-fluorophenyl)propanoic acid Benzyl (3R,4S)-3-(2-bromoacetyl)-4-ethylpyrrolidine-1-carboxylate Bisacodyl Related Compound C/Bisacodyl EP Impurity C Levothyroxine Beta Hydroxy Impurity Candesartan EP Impurity-F/Candesartan Cilexetil USP Related Compound F / Candesartan Cilexetil N2-Ethyl Impurity / 2H-N2-Ethyl Candesartan Cilexetil Atorvastatin amide impurity/Atorvastatin EP Impurity F(Calcium Salt) Sumatriptan Succinate USP Related Compound C N-[(1S)-1-benzyl-2-({(1R)-3-methyl-1-[(1S,2S,6R,8S)-2,9,9-trimethyl-3,5-dioxa-4-boratricyclo[6.1.1.0~2,6~]dec-4-yl]butyl}amino)-2-oxoethyl]-2-pyrazinecarboxamide N-[4-Cyano-3-(trifluoromethyl)phenyl]-3-[(4-fluorophenyl)thio]-2-hydroxy-2-methylpropionamide L-phenylalanine methyl ester hydrochloride 2,2'-(5-Bromomethyl-1,3-phenylene)-di(2-Methylpropionitrile) tri sodium thio phosphate L-phenylalanine, N-(pyrazinyl carbonyl) methyl ester 3-chlorobenzyl cyanide 2-Chloro Benzylcyanide 3,4 Diethoxy Benzylcyanide 4-Bromo Benzylcyanide 3-Hydroxypropionitrile valeronitrileRelated products of tetrahydrofuran
![tetrasodium 2-[[2-amino-6-[[4-[[4-[(3-carboxylato-4-hydroxyphenyl)azo]-7-sulphonato-1-naphthyl]azo]-2,5-dimethoxyphenyl]azo]-5-hydroxy-7-sulphonato-1-naphthyl]azo]-5-nitrobenzoate](https://img.chemicalbook.in/CAS/GIF/6409-86-5.gif)
![Diindolo[3,2-b:3',2'-m]triphenodioxazinetrisulfonic acid, 8,18-dichloro-5,15-dihydro-, trisodium salt](https://img.chemicalbook.in/)
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