Thallium(III) nitrate trihydrate is a reagent used for the rapid oxidation of styrene derivatives to carbonyl compounds, for the regioselective ring expansion of cyclic aralkyl ketones via oxidative rearrangement, for the selective hydrolysis of thioacetals to carbonyl compounds and for a general synthetic method to 19-norsteroids. Mediates ring contraction of cyclic ketones to a series of trans-fused 10-methyl-2-decalones.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.