| 562 / | HD | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
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| * | DD | ORGANIC COMPOUNDS (Class 532, Subclass 1) {41} |
| 30 | DF | .~ Sulfonic acids or salts thereof (i.e., compounds containing the sulfonate group, -S(=O)(=O)-O- wherein the single bonded oxygen is bonded directly to hydrogen, or to a group IA or IIA light metal or to substituted or unsubstituted ammonium) {15} |
| 45 |  | .~.~ Benzene ring bonded directly to the sulfonate sulfur (e.g., purification and neutralization of benzene sulfonic acids, etc.) {11} |
| 46 | DF | .~.~.~> Having -C(=X)-, wherein X is chalcogen, attached indirectly to the sulfonate group by nonionic bonding (e.g., aldehydes, etc.) {1} |
| 58 | DF | .~.~.~> Nitrogen attached indirectly to the sulfonate group by nonionic bonding {7} |
| 74 | DF | .~.~.~> Nonsulfonate chalcogen attached indirectly to the sulfonate group by nonionic bonding {6} |
| 83 | DF | .~.~.~> Halogen attached indirectly to the sulfonate group by nonionic bonding |
| 84 | DF | .~.~.~> Addition salts having organic nitrogen containing cation {2} |
| 87 | DF | .~.~.~> Acyclic carbon to carbon unsaturation containing |
| 88 | DF | .~.~.~> Plural benzene rings bonded directly to each other, or to the same acyclic carbon or acyclic carbon chain |
| 89 | DF | .~.~.~> Polycyclo ring system consisting of benzene rings bonded directly to the sulfonate group {1} |
| 91 | DF | .~.~.~> Sulfonate group and alkyl group of at least four carbons bonded directly to the same benzene ring {5} |
| 98 | DF | .~.~.~> Sulfonation utilizing sulfur trioxide or oleum (e.g., sulfonation of benzene or toluene with oleum, etc.) |
| 99 | DF | .~.~.~> Sulfonation utilizing sulfuric acid (e.g., sulfonation of benzene or toluene with sulfuric acid, etc.) |