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2-(2-Sulfo-4-aminophenylthio)-5-aminobenzenesulfonic acid double nitriding, and phenol (2 Moore) coupling, and then under pressure to the hydroxyl ethyl with monomer (VCM).Properties and Applications
yellow. Soluble in water and ethanol for green light yellow, slightly soluble in acetone. The strong sulfuric acid for cherry red, diluted into a green light yellow. In aqueous solution is to add strong hydrochloric acid have olive to yellow brown precipitation; Add thick sodium hydroxide solution yellowish after precipitation. Used for wool, silk, polyamide fiber dyeing and printing directly. Also used in paper and leather shading.| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 5 | 4-5 | 4 | 4 | 3-4 | 4 | 4-5 | |
| AATCC | 5 | 3-4 | 3-4 | 4 | 3-4 | 3-4 | 4-5 | |
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4,4'-???????? ??????? p-???? 4-??????
Acid Yellow 42
Acid Yellow 44
ACID YELLOW 40
METANIL YELLOW
sodium 5-chloro-4-[4-[(2-chlorophenyl)azo]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]toluene-3-sulphonate
sodium p-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]benzenesulphonate
Acid Yellow 40:1
ACID YELLOW 34
4-(Methylmercapto)aniline
1,2-BENZENEDITHIOL
ACID YELLOW 7
4-METHOXYAZOBENZENE
ACID YELLOW 38
4-Aminodiphenylsulfide