| A | B |
| lauric acid | 12 |
| myristic acid | 14 |
| palmitic acid | 16 |
| stearic acid | 18 |
| arachidic acid | 20 |
| palmitoleic acid | 16:1 |
| oleic acid | 18:1 |
| linoleic acid | 18:2 |
| linolenic acid | 18:3 |
| arachidonic acid | 20:4 |
| PAF | ether glycerophospholipid |
| plasmologen | ether glycerophospholipid, alkyl cis a,b unsaturated |
| sphingosine | 18 c amino alcohol |
| ceramides | amide linkage of fa to nitrogen of sphingosine |
| glycosphingolipids | ceramide w/1or more sugars 1 hydroxyl group |
| cerebrosides | glycophingolipids with one sugar |
| gangliosides | ceramides with 3 or more sugars one sialic acid |
| waxes | esters of long chain alcohols with long chain fa |
| terpenes | isoprene |
| coumarin | anticoagulant |
| warfarin | rat poison |
| steroids | 3 6-membered rings, 1 5-membered ring |