| LM_ID | Common Name | Systematic Name | Formula | Mass |
|---|---|---|---|---|
| LMSP03019ARX | SM(d15:1(4E)/15:0(2OH[R])) | N-(2R-hydroxypentadecanoyl)-4E-pentadecasphingenine-1-phosphocholine | C35H71N2O7P | 662.4999 |
| LMSP03019AUT | SM(d15:1(8E)/15:0(2OH[R])) | N-(2R-hydroxypentadecanoyl)-8E-pentadecasphingenine-1-phosphocholine | C35H71N2O7P | 662.4999 |