| 534 / | HD | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
| * | DD | ORGANIC COMPOUNDS (CLASS 532, SUBCLASS 1) {8} |
| 573 | DF | .~ Azo {51} |
| 617 | DF | .~.~ Fiber- or substrate-reactive azo compound {5} |
| 630 | DF | .~.~.~ Halogen attached directly to a hetero ring or to an alicyclic ring by nonionic bonding {2} |
| 631 | ![]() | .~.~.~.~ Stilbene containing |