4-Aminoazobenzenedisulfonic acid, monosodium salt

292700 Diazo-, azo- or azoxy-compounds:

2927000300 4-Aminoazobenzenedisulfonic acid, monosodium salt

2927000600 p-Aminoazobenzenedisulfonic acid; and Diazoaminobenzene (1,3-Diphenyltriazene)

2927001500 1,1'-Azobisformamide

2927001800 1-Naphthalenesulfonic acid, 6-diazo-5,6-dihydro-5-oxo, ester with phenyl(2,3,4-trihydroxyphenyl)methanone; 1-Naphthalenesulfonic acid, 3-diazo-3,4-dihydro-4- oxo-ar'-(1-methylethyl) [1,1'-biphenyl]-4-yl ester; 1-Napthanlenesulfonic acid, 6-diazo-5,6-dihydro-5- oxo-,(octahydro-4,7-methano-1H-indene-2,5-diyl) bis- (methylene) ester; and 1-Naphthalenesulfonic acid, 6-diazo-5,6-dihydro-5- oxo-, 4-benzoyl-1,2,3-benzenetriyl ester

2927002500 Photographic chemicals

2927003000 Fast color bases and fast color salts

2927004000 Products described in additional U.S. note 3 to section VI

2927005000 Other