| CAS登录号 | 中文名 | 英文名 | 分子结构式 | 分子式 | 详情 | 供应商 |
| 7440-16-6 | 铑,粉状; 铑 | Rhodium; Rhodiumblack; Rhodium-103 | ![]() | Rh | 详情 | 供应商 |
| 7440-18-8 | 钌催化剂; 钌黑 | Ruthenium; Ru-A1; Ruthenium black; Ruthenium element | ![]() | Ru | 详情 | 供应商 |
| 7440-14-4 | 镭 | actinium-x; radium; thorium-x | ![]() | Ra | 详情 | 供应商 |
| 7440-10-0 | 镨棒; 镨 | praseodymium; Praseodymium-141 | ![]() | Pr | 详情 | 供应商 |
| 7440-19-9 | 钐; 钐棒 | Samarium; Samariumpowdermesh; SamariumchipsNREO; SamariumingotNREO; SamariumfoilNREOmmthickcagxmm; SamariumpowderREOmesh; Samariumpowder; Samariumchips; Samariumingot; Samariumfoil | ![]() | Sm | 详情 | 供应商 |
| 7440-15-5 | 铼,粉状; 铼棒 | Rhenium; NSC 600662; Rhenium element | ![]() | Re | 详情 | 供应商 |
| 7440-17-7 | 铷; 铷;金属铷 | Rubidium; Rubidium | ![]() | Rb | 详情 | 供应商 |
| 7440-11-1 | mendelevium | ![]() | Md | 详情 | 供应商 | |
| 7440-13-3 | 无 | 详情 | 供应商 | |||
| 7440-12-2 | promethium; promethium-147; 61Pm; Chebi:33373; Prometio | ![]() | Pm | 详情 | 供应商 |