Name:C.I.Acid Yellow 49,C.I.18640

　　Molecular Structure: Single azo class

　　C.I.Acid Yellow 49,C.I.18640,CAS 12239-15-5,448.26,C16H12Cl2N5NaO3S,Weak acid Yellow GR,Weak acid Yellow NFC,Weak acid Yellow E-4G,Acid Yellow GR

　　Molecular Formula:C16H12Cl2N5NaO3S

　　Molecular Weight: 448.26

　　CAS Registry Number:12239-15-5

　　Properties and Applications: brilliant yellow. This applies to goods wool, silk, polyamide fiber and wool blended fabric dyeing, good levelness and also can be used for leather color.

　　Standard

　　Light Fastness

　　Soaping

　　Persperation Fastness

　　Oxygen bleaching

　　Fastness to seawater

　　Fading

　　Stain

　　Fading

　　Stain

　　Fading

　　Stain

　　ISO

　　5-6

　　2-3

　　3

　　3

　　3

　　3-4

　　3

　　2-3

　　2.International Similar Brand

　　Weak acid Yellow GR

　　Weak acid Yellow NFC

　　Weak acid Yellow E-4G

　　Acid Yellow GR

　　AACL Yellow 4NGL 200%

　　Acid Fast Yellow NFG

　　Acid Yellow 4NGL

　　Acid Yellow 9G

　　Acid Yellow GR

　　Akacid Yellow FGL 200%

　　Alto Acid Yellow 9G

　　Ambinyl Yellow L4G

　　Aminyl Yellow E-3GL

　　Apollo Nylon Fast Yellow FGL

　　Bemylon Yellow 9G

　　Bemylon Yellow 9G 100%

CAS NO:12239-15-5

EC NO:235-473-4

Molecular Formula:C₁₆H₁₃Cl₂N₅O₃S

Molecular Weight:426.2771

Synonyms:;C.I. Acid Yellow 49;Benzenesulfonic acid, 4-(2-(5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazenyl)-2,5-dichloro-2,5-dichloro-4-{(2Z)-2-[(5Z)-5-imino-3-methyl-1-phenyl-1,5-dihydro-4H-pyrazol-4-ylidene]hydrazino}benzenesulfonic acid;4-(5-amino-3-methyl-1-phenyl-pyrazol-4-yl)azo-2,5-dichloro-benzenesulfonic acid;

Molecular Structure: