C09B3/30 - CPC Classification

Dyes with an anthracene nucleus condensed with one or more carbocyclic rings; Dibenzanthrones; Isodibenzanthrones Preparation from starting materials already containing the dibenzanthrone or isodibenzanthrone nucleus

• C09B3/32 » by halogenation 1
• C09B3/34 » by oxidation 0
• C09B3/36 » by etherification of hydroxy compounds 1
• C09B3/38 » by introduction of hydrocarbon or acyl residues into amino groups 0