Lanthanum(III) nitrate is utilized as a starting material for the electrochemical synthesis of a LaMnO₃ thin film coating on stainless steel substrates. It is used as a catalyst for the chemoselective preparation of cyclic and acyclic dithioacetals. It is used to prepare lanthanum aluminate (LAO) thin films, LaF₃ nanocrystals, and bis(indolyl) methanes from indoles.

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.