Synonyms:
pigment brilliant yellow hgr ; yellow hgr 31 ; 6191 pigment brilliant yellow hgr ; pigment -- pigment yellow 191 ; 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) ; pigment yellow 191 ; 4-chloro-2-[5-hydroxy-3-methyl-1-(3-sulfophe- nyl)pyrazol-4-ylazo]-5-methylbenzene sulfonic acid, calcium salt ; 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) ; c.i. 18795