ESTER OF 2-DIAZO-1-NAPHTHOL-4-SULFONE WITH 2,3,4-TRIHYDROXY-BENZOPHENONE;ESTER OF 2-DIAZO-1-NAPHTHOL-5-SULFONE WITH 2,3,4,4'-TETRAHYDROXY-BENZOPHENONE;2-diazo-1-naphthol-5-sulfonic acid, ester with 2,3,4,4'-tetrahydroxy benzophenone;1-Naphthalenesulfonic acid, 6-Diazo-5,6-dihydro-5-oxo-, ester with (4-hydroxyphenyl) (2,3,4-trihydroxyphenyl)methanone;2,3,4,4'-Tetrahydroxybenzophenone 1,2-naphthoquinonediazido-5-sulfonate;2,3,4,4'-Tetrahydroxybenzophenone-1,2-naphthoquinonediazide-5-sulfonic acid ester;tetrahydroxybenzophenone naphthoquinonediazide-5-sulfonate
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