| Compound | Description |
|---|---|
| isopentenyl pyrophosphate | substrate for isopentenyl pyrophosphate isomerase; RN given refers to unlabeled cpd; a nonpeptide mycobacterial antigen that stimulates gamma delta T cells |
| geranyl pyrophosphate | RN given refers to (E)-isomer |
| 3,3-dimethylallyl pyrophosphate | isomeric with isopentenyl pyrophosphate |