Tellurocysteine (in some publications referred to as Te-Cys) is an amino acid with the formula HTeCH2CH(NH2)CO2H. It is the heavy analogue of serine, cysteine, and selenocysteine.
The compounds of every Wikipedia article carrying a Chembox or a Drugbox, refreshed daily, with the values their infoboxes give. The pages need JavaScript; the API does not.