| Label | Id | |
|---|---|---|
| Ile | 30009 | |
| Inalone | 3002 | |
| InsPCer | 53004 | |
| K2[Ni(CN)4] | 30071 | |
| K3[Fe(CN)6] | 30060 | |
| K4[Fe(CN)6] | 30059 | |
| K4[Ni(CN)4] | 30070 | |
| K[Au(CN)2] | 30057 | |
| Kaliumhexazyanoferrat(II) | 30059 | |
| Kaliumhexazyanoferrat(III) | 30060 | |
| Kdoalpha2-8Kdoalpha2-6GlcNAcbeta | 59300 | |
| Korbutone | 3002 | |
| Korksaeure | 9300 | |
| L-alloisoleucyl | 30008 | |
| L-glutamine | 30011 |