Direct Red 69
- CAS NO.：5915-58-2
- Empirical Formula: C31H21N4NaO7S4
- Molecular Weight: 712.76
What is Direct Red 69?
Preparation
p-Methylaniline (2 Moore) and sulfur (4.5 atomic ratio) in 200 ~ 280 ℃ heat, with hair smoke from the sulphonated sulfuric acid alkali primrose spirit. The product C.I. Direct Yellow 59 (C.I. 49000) diazo, coupled with the 4-Hydroxynaphthalene-1-sulfonic acid.
Properties and Applications
red. Soluble in water is cherry red, not soluble in alcohol. The strong sulfuric acid for purple, after diluted purple precipitation. The dye solution to join strong hydrochloric acid with purple precipitation; Add thick sodium hydroxide solution no change.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 4 | 3 | 2 | 1 | 1 | ||
Safety information for Direct Red 69
New Products
Mirtazapine Impurity C/Mirtazapine Lactam Impurity Cyclopropane-1,1-dicarboxylic acid [1]Benzothieno[2,3-c]pyridine, 1,7-dichloro-8-methyl- (S)-3-Fluoro-pyrrolidine hydrochloride Cyclobutylamine 1-Bromo-2-Methoxy-3-Nitrobenzene 3-Oxocyclobutane-1-carboxylicacid (4-Bromophenyl)(3,4-dimethoxyphenyl)methanone N-Nitroso hydroxy Cetrizine EP Impurity-A Noradrenaline EP Impurity D/Noradrenaline Methyl Ether Cetirizine EP Impurity A/Cetirizine CBHP Impurity Lantanoprost rc B Clidinium Bromide Impurity 2-chloro-7-cyclopentyl-N,N-dimethylpyrrolo [2,3-d]pyrimidine-6-carbox amide 4-amino-2-fluoro-N- methylbenzamide N-(2-chloropyrimidin-4-yl)-N,2,3- trimethyl-2H- indazol 6-amine 5-Chloro-3- Methyl -1,3-2-benzoxazol-2(3H)-one 4-Bromo-2-fluoro-N-methylbenzamide N-Boc-1,4-butanediamine 4-Dimethylamino pyridine 2-Chlorotrityl Chloride 4-Bromoaniline 5-Bromo-2-chlorobenzoic acid 1,2,3,9-Tetrahydro-4(H)-carbazol-4-oneRelated products of tetrahydrofuran
![disodium 4-amino-3-[[4'-[(2-amino-6-sulphonatonaphthyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]naphthalene-1-sulphonate](https://img.chemicalbook.in/CAS/GIF/6598-56-7.gif)
![4-Amino-3-[[4'-[(2,4-dihydroxyphenyl)azo]-3,3'-dimethyl-1,1'-biphenyl-4-yl]azo]-1-naphthalenesulfonic acid sodium salt](https://img.chemicalbook.in/CAS/GIF/6405-98-7.gif)
![7-[[[[4-(Acetylamino)phenyl]amino]carbonyl]amino]-4-hydroxy-3-[(2-methylphenyl)azo]-2-naphthalenesulfonic acid sodium salt](https://img.chemicalbook.in/CAS/GIF/6369-37-5.gif)
![7-[[[[4-(Acetylamino)phenyl]amino]carbonyl]amino]-4-hydroxy-3-[(2-methoxyphenyl)azo]-2-naphthalenesulfonic acid sodium salt](https://img.chemicalbook.in/CAS/GIF/6417-30-7.gif)
![[2,6'-Bibenzothiazole]-7-sulfonic acid, 2'-[4-[(2-hydroxy-6-sulfo-1-naphthalenyl)azo]phenyl]-6-methyl-, disodium salt](https://img.chemicalbook.in/CAS/20200401/GIF/5858-98-0.gif)
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