534 / | HD | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
* | DD | ORGANIC COMPOUNDS (CLASS 532, SUBCLASS 1) {8} |
573 | DF | .~ Azo {51} |
692 | DF | .~.~ Heavy metal or aluminum containing {7} |
695 | .~.~.~ Azo moiety and moiety which contains acyclic -CH=N- group bonded to the same metal |