| Label | Id | |
|---|---|---|
| hexaaquacobalt(III) | 30028 | |
| hexaaquamagnesium(2+) | 30032 | |
| hexaaquamagnesium(II) | 30032 | |
| hexaaquasodium(1+) | 30024 | |
| hexaaquasodium(I) | 30024 | |
| hydrazine-1,2-diyl | 30098 | |
| naphthalene-1,5-diamine | 53003 | |
| ethynediide | 30081 | |
| ethynid-2-yl | 30082 | |
| ethynyl | 30085 | |
| chromium(2+) | 33006 | |
| chromium(4+) | 33009 | |
| chromium(5+) | 33008 | |
| chromium(6+) | 33007 | |
| copper | 30052 |