Methanol
From Tardis Wiki, the free Doctor Who reference
Methanol was a compound that, when oxidised, could form formaldehyde. Some laptops used fuel cells with methanol. Gwen Cooper and Rex Matheson used methanol from a laptop on an aeroplane to help make ethylenediaminetetraacetic acid to cure Jack Harkness of his cyanide poisoning. (TV: Rendition)
