40 CFR 721.9576 Chromate(3-), bis[7-[(aminohydroxyphenyl)azo]-3-[[5-(aminosulfonyl)-2-hydroxyphenyl]azo]-4-hydroxy-2-naphthalene-sulfonato (3-)]-, trisodium (9CI) [63 FR 3438, Jan. 22, 1998]