Process for preparing...

Details Process for preparing... Process for preparing...

C - Chemistry, Metallurgy

07

C

96/158, 260/396.

C07C 309/53 (2006.01) G03C 1/54 (2006.01)

Patent

CA 2023055

Abstract of the Disclosure A process for preparing 7-hydroxy-1,2- naphthoquinone-2-diazide-4-sulfonic acid or salts thereof, of the general formula Z Image Z is disclosed in which X = hydrogen, a metal or an ammonium group, preferably an alkali metal or alkaline earth metal, especially sodium or potassium and the ammonium group. The compounds can be used as such or as intermediates or starting materials for the production of light-sensitive compounds and radiation-sensitive mixtures and materials.

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