Table 1.

Chemical structure of tocopherols and tocotrienols. Tocopherols have a saturated phytyl tail.

Form	R1	R2	R3
α-Tocopherol	CH3	CH3	CH3
β-Tocopherol	CH3	CH3	H
γ-Tocopherol	H	CH3	CH3
δ-Tocopherol	H	CH3	H
Basic structure of tocotrienols
Form	R1	R2	R3
α-Tocotrienol	CH3	CH3	CH3
β-Tocotrienol	CH3	H	CH3
γ-Tocotrienol	H	CH3	CH3
δ-Tocotrienol	H	H	CH3