Name:Vitamin E succinate Synonyms:D-alpha-Tocopherol succinate Molecular Formula:C33H54O5 Molecular Weight:530.78 CAS Registry Number:4345-03-3 EINECS :224-403-8 It is a series of organic compounds consisting of various methylated phenols. Because the vitamin activity was first identified in 1936 from a dietary fertility factor in rats, it was given the name "tocopherol" from the Greek words τοο [birth], and φορειν, [to bear or carry] meaning in sum "to carry a pregnancy," with the ending "-ol" signifying its status as a chemical alcohol. Tocotrienols, which are related compounds, may also have vitamin E activity. All of these various derivatives with vitamin activity may correctly be referred to as "vitamin E." Tocopherols and tocotrienols are fat-soluble antioxidants but also seem to have many other functions in the body. The compound α-tocopherol, a common form of tocopherol added to food products, is denoted by the E number E307.