CAS number：129423-54-7
molecular formula：C17H17CaClN4O7S2
molecular weight：528.99
EINECS number：403-530-4

English synonyms

Pigment Brilliant Yellow HGR;PIGMENT YELLOW 191;c.i. 18795;PYRAZOLONE YELLOW HGR;Benzenesulfonic acid, 4-chloro-2-4,5-dihydro-3-methyl-5-oxo-1-(3-sulfophenyl)-1H-pyrazol-4-ylazo-5-methyl-, calcium salt (1:1);4-Chloro-2-[[4,5-dihydro-3-methyl-5-oxo-1-(3-sulfophenyl)-1H-pyrazol-4-yl]azo]-5-methylbenzenesulfonic acid calcium salt (1:1);Benzenesulfonic acid, 4-chloro-2-[2-[4,5-dihydro-3-methyl-5-o xo-1-(3-sulfophenyl)-1H-pyrazol-4-y l]diazenyl]-5-methyl-, calcium salt (1:1);Pigment -- Pigment Yellow 191

Related categories

chemical raw materials

Introduction

Pigment Yellow 191 has many advantageous properties such as high light fastness and high heat resistance. However, the tinting strength is significantly lower compared to other pigments such as Pigment Yellow 180.

Chemical properties

Use

●  Pigment Yellow 191 is mainly used for the coloring of plastics.