| 21393-59-9 | Ferrate(2-),[[N,N'-1,2-ethanediylbis[N-[(carboxy-kO)methyl]glycinato-kN,kO]](4-)]-, hydrogen (1:2), (OC-6-21)- | C10H12 Fe N2 O8 . 2 H |
| 21393-64-6 | manganese protoporphyrin | C34H30 Mn N4 O4 . 2 H |
| 21393-72-6 | Mercury(2+), bis(triphenylphosphine)-, diperchlorate | C36H30HgP2.2ClO4 |
| 21393-88-4 | pentaammineaquaruthenium | H17N5ORu+2 |