Description
Class C09B : ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; MORDANTS; LAKES
Subclass 1/30: Dyes with an anthracene nucleus not condensed with any other ring Amino anthraquinones Preparation from starting materials already containing the anthracene nucleus Dyes with amino groups substituted by hydrocarbon radicals substituted by alkyl, aralkyl, or cyclo-alkyl groups sulfonated