| Label | Id | |
|---|---|---|
| Lys-tRNA(Pyl) | 13139 | |
| MG(0:0/22:5(7Z,10Z,13Z,16Z,19Z)/0:0) | 179139 | |
| MP-PYT | 139526 | |
| Magnolioside | 139433 | |
| Malonylmalvin | 188139 | |
| Man-1-6-Ins-1-P-Cer(d18:0) | 139446 | |
| Man-1-6-Ins-1-P-Cer(d20:0) | 139444 | |
| Man-1-6-Ins-1-P-Cer(t20:0) | 139436 | |
| Mecarphon | 82139 | |
| Met-Trp-His | 161139 | |
| Murisolin | 176139 | |
| N(5)-phospho-L-glutamine | 139506 | |
| N(5)-phospho-L-glutamine(1-) | 139073 | |
| N,N,N-trimethylglycinium | 41139 | |
| N,N-dimethyl-2-thiophenepropanamine | 139060 |