| 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} |
| 126 | ![]() | .~.~ Trivalent compounds having the structure (Hal)-P-(C)(C or H), or (Hal)-2-P(C), or pentavalent compounds having the structure (Hal)-P(=X)(C) (C or H) or (Hal)2-P(=X)(C) where X is chalcogen (9/52) |