Acid Brown 98(CAS 12269-88-4)

Acid Brown 98

Name:C.I.Acid Brown 98,C.I.18840:2

Molecular Structure: Single azo,Metal Complexes

C.I.Acid Brown 98,C.I.18840:2,CAS 12269-88-4/1990-21-7/74279-34,441.35,C16H12N5NaO7S,Acid Leather Brown O,Acid Brown 5G,Acid Brown O

Molecular Formula:C₁₆H₁₂N₅NaO₇S

Molecular Weight: 441.35

CAS Registry Number: 12269-88-4/1990-21-7/74279-34

Manufacturing Methods :   2-Amino-4-nitrophenol diazo, and 4-(3-Methyl-5-oxo-4,5-dihydropyrazol-1-yl)benzenesulfonic acid coupling, and then turn it into 1:2 iron complex.

Properties and Applications:  yellow light brown. Mainly used for leather color.