| 562 / | HD | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
| * | DD | ORGANIC COMPOUNDS (Class 532, Subclass 1) {41} |
| 821 | DF | .~ Sulfur halides (i.e., compounds having halogen attached directly to sulfur by nonionic bonding) {5} |
| 827 | DF | .~.~ Chalcogen double bonded directly to the sulfur (e.g., sulfinyl halides, etc.) {1} |
| 828 | DF | .~.~.~ Plural chalcogens double bonded directly to the sulfur (e.g., sulfonyl halides, etc.) {6} |
| 829 | | .~.~.~.~ Processes for forming the sulfonyl halide group utilizing elemental halogen |