Evan E. Bolton, Yanli Wang, Paul A. Thiessen, Stephen H. Bryant (2008). „Chapter 12 PubChem: Integrated Platform of Small Molecules and Biological Activities”. Annual Reports in Computational Chemistry4: 217-241. DOI:10.1016/S1574-1400(08)00012-1.
„Propane – Compound Summary”. PubChem Compound. USA: National Center for Biotechnology Information. 27. 3. 2005.. Identification and Related Records. Pristupljeno 8. 12. 2011.