Used in the electronics industry for the production of niobium-containing semiconductors and capacitors due to its ability to form high-purity niobium oxide layers. Serves as a catalyst or catalyst precursor in certain organic synthesis and petrochemical processes. Employed in research settings for the deposition of niobium-based thin films via chemical vapor deposition (CVD), which are useful in optical coatings and superconducting materials. Also utilized in the preparation of other niobium compounds for metallurgical and ceramic applications.