| 534 / | HD | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
| * | DD | ORGANIC COMPOUNDS (CLASS 532, SUBCLASS 1) {8} |
| 573 | DF | .~ Azo {51} |
| 650 | ![]() | .~.~ Sulfonyl or -C(=X)-, wherein X is chalcogen, between a ring and an alkyl chain having at least eight carbons specified {1} |
| 651 | DF | .~.~.~> The sulfonyl or -C(=X)- is bonded directly to the ring |