Editing Thiotimoline (section)

==Chemical properties==

In Asimov's writings the endochronicity of thiotimoline is explained by the fact that in the thiotimoline molecule, there is at least one [[carbon atom]] such that, while two of the carbon's four [[chemical bonds]] lie in normal [[spacetime|space and time]], one of the bonds projects into the future and another into the past.  Thiotimoline is derived from the bark of the (fictitious) shrub ''Rosacea karlsbadensis rufo'', and the thiotimoline molecule includes at least fourteen [[Hydroxyl|hydroxy]] groups, two [[amine|amino]] groups, and one [[sulfonic acid]] group, and possibly one [[nitro compound]] group as well.  The nature of the [[hydrocarbon]] nucleus is unknown, although it seems in part to be an [[aromatic hydrocarbon]].