73384-78-8

Basic information

• Product Name: Acid Yellow 127
• Synonyms: sodium 4-[[4-chloro-6-(methylanilino)-1,3,5-triazin-2-yl]amino]-2-[[1-(2-chlorophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]benzenesulphonate;Acid yellow 127 (C.I. 18888);Hodgsons Kayanol Milling Yellow 5GW;Acid Brilliant Yellow 3GL;Aminyl Yellow F-5GL;Benzenesulfonic acid, 4-[[4-chloro-6-(methylphenylamino)-1, 3, 5-triazin-2-yl]amino]-2-[[1-(2-chlorophenyl)-4, 5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo], monosodium salt;Best Acid Milling Yellow 5GW;Concorde Acid Yellow 5GW
• CAS NO: 73384-78-8
• Molecular Formula: C26H20Cl2N9NaO4S
• Molecular Weight: 648.45567
• EINECS: 277-419-2
• Mol File: 73384-78-8.mol
• Article Data: 0

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Acid Yellow 127(CAS DataBase Reference)
• NIST Chemistry Reference: Acid Yellow 127(73384-78-8)
• EPA Substance Registry System: Acid Yellow 127(73384-78-8)

Safety Data

• Hazardous Substances Data: 73384-78-8(Hazardous Substances Data)

Usage

Preparation

2,4-Diaminobenzenesulfonic acid first and 2,4,6-Trichloro-1,3,5-triazine condensation, again with N-methylbenzenamine condensation, and then diazo, and 1-(2-Chlorophenyl)-3-methyl-1H-pyrazol-5(4H)-one?coupling.

Properties and Applications

colourful green light yellow. Yellow powder, soluble in water. The strong sulfuric acid for yellow, diluted still is yellow, accompanied by precipitation; In strong hydrochloric acid for yellow, diluted unchanged; In the nitric acid is yellow, diluted and precipitation for tender yellow; In the thick of sodium hydroxide solution of decomposition, after diluted yellow precipitation. The dye solution for green light light yellow, boil can get clear solution. Used for wool, silk, polyamide fiber fabric dyeing and printing directly, can also be used for leather color. Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater Fading Stain Fading Stain Fading Stain ISO 6 4 5 5 4-5 4-5 5 5

Standard

Light Fastness

Fading

Stain

ISO

6

InChI:InChI=1/C26H21Cl2N9O4S.Na/c1-15-22(23(38)37(35-15)20-11-7-6-10-18(20)27)34-33-19-14-16(12-13-21(19)42(39,40)41)29-25-30-24(28)31-26(32-25)36(2)17-8-4-3-5-9-17;/h3-14,22H,1-2H3,(H,39,40,41)(H,29,30,31,32);/q;+1/p-1/b34-33+;