| 286367-59-7 | OXALIC ACID (1,2-13C2) | C2H2 O4 . 2 H2 O |
| 286367-62-2 | SODIUM BUTYRATE-2-13C | C4H8 O2 . Na |
| 286367-68-8 | SODIUM BUTYRATE-2,4-13C2 | C4H8 O2 . Na |
| 286367-75-7 | SODIUM BUTYRATE-4-13C | C4H8 O2 . Na |
| 286367-78-0 | DICHLOROACETIC ACID-2-13C | C2H2 Cl2 O2 |
| 286367-79-1 | 4-AMINOPYRIDINE | C2H Cl3 O |