1. Flavour and Extract Manufacturers Association of United States, Literature Review of Propylene Glycol, Glycerol and Related Substances in Flavour Usage, Vol. I, Report 1984, FEMA US-84/04. FEMA, Washington, DC (1984). (National Toxicological Information Service) available from
2. Metabolism of occupational agents. In Biochemical Toxicology of Environmental Agents, pp. 87–170. Elsevier North Holland Biochemical Press, New York (1976).
3. Short chain diol metabolism in human disease states
4. Central nervous system toxicity associated with ingestion of propylene glycol