| 987 / | HD | ORGANIC COMPOUNDS CONTAINING A Bi, Sb, As, OR P ATOM OR CONTAINING A METAL ATOM OF THE 6TH TO 8TH GROUP OF THE PERIODIC SYSTEM |
| 30 | DF | PHOSPHORUS COMPOUNDS (9/02; 9/06) {15} |
| 116 | DF | .~ Contains at least one (C)-P bond (9/28) {19} |
| 119 | ![]() | .~.~ Pentavalent P compound containing at least one bond to carbon and wherein the other four valences are bonded directly to four separate atoms, none of which are chalcogen (9/535) |