CPC Subgroup
C09B 3/42 Preparation by synthesis of the nucleus
Full Title
Dyes with an anthracene nucleus condensed with one or more carbocyclic rings > Pyranthrones > Preparation by synthesis of the nucleus
C09B 3/42 Dyes with an anthracene nucleus condensed with one or more carbocyclic rings > Pyranthrones > Preparation by synthesis of the nucleus