Formaldehyde

Formaldehyde was a compound that could be made by oxidising methanol. Together with ethylenediamine, it could form ethylenediaminetetraacetic acid, or EDTA. Jack Harkness objected to injecting it to cure his cyanide poisoning. (TV: Rendition ^[+]Loading...["Rendition (TV story)"])

The First Doctor smelled formaldehyde in the Zilgan's cave on the Sense Sphere. (PROSE: The Monsters from Earth ^[+]Loading...["The Monsters from Earth (short story)"])