NCI Drug Dictionary

The NCI Drug Dictionary contains technical definitions and synonyms for drugs/agents used to treat patients with cancer or conditions related to cancer. Each drug entry includes links to check for clinical trials listed in NCI's List of Cancer Clinical Trials.

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delta-tocopherol
The orally bioavailable delta form of the naturally-occurring fat-soluble vitamin E, mostly found in soybean and corn oils, with potential antioxidant activity. Although the exact mechanism of action of this tocopherol has yet to be fully identified, delta-tocopherol appears to have the ability to scavenge free radicals, thereby protecting cells against oxidative damage. Check for active clinical trials using this agent. (NCI Thesaurus)

Chemical structure:
  • [2R-[2R*(4R*,8R*)]]-3,4-dihydro-2,8-dimethyl-2-(4,8,12-trimethyltridecyl)-2H-1-benzopyran-6-ol
  • 2,8-dimethyl-2-(4,8,12-trimethyltridecyl)chroman-6-ol