Vitamin E is added to food products as a nutrient, but more
often it is added for its anti-oxidant properties, protecting
oils and fats from oxidation.
Tocopherols come in various forms only slightly different
from the α-tocopherol shown in the structural formula
above. β and γ forms differ in where the methyl
groups are attached to the ring structure. An ingredients
list may single out the α form, or may just say
"mixed tocopherols".
alpha tocopherol: InChI=1/C29H50O2/c1-20(2)12-9-13-21(3)14-10-15-22(4)16-11-18-29(8)19-17-26-25(7)27(30)23(5)24(6)28(26)31-29/h20-22,30H,9-19H2,1-8H3/t21-,22-,29-/m1/s1
By Simon Quellen Field