... -20-4 Pure natural Grapefruit oil,Grapefruit essential oil,CAS 8016-20-4 Blends well with oil: Basil, bergamot,cedar,chamomile,frankincense,geranium,jasmine ... or bitter),grapeseed oil,eucalyptus oil,Geranium oil,peppermint oil,lemond oil,lemongrass oil,Fennel oil,Cinnamon oil,jojoba oil,grapeseed oil,evening primrose oil,tea tree oil,lavender oil,and so on ...