| 508 / | HD | SOLID ANTI-FRICTION DEVICES, MATERIALS THEREFOR, LUBRICANT OR SEPARATE COMPOSITIONS FOR MOVING SOLID SURFACES, AND MISCELLANEOUS MINERAL OIL COMPOSITIONS |
| 110 | DF | LUBRICANTS OR SEPARANTS FOR MOVING SOLID SURFACES AND MISCELLANEOUS MINERAL OIL COMPOSITIONS (E.G., WATER CONTAINING, ETC.) {53} |
| 545 | DF | .~ Organic nitrogen compound {8} |
| 556 | | .~.~ Nitrogen attached indirectly to the nitrogen by nonionic bonding {3} |
| 557 | DF | .~.~.~> Plural nitrogens bonded directly to a single benzene ring |
| 558 | DF | .~.~.~> Plural nitrogens bonded directly to a single acyclic hydrocarbon chain {1} |
| 560 | DF | .~.~.~> Oxygen or sulfur bonded directly to a benzene ring (e.g., aniline disulfide, etc.) |