CAS Registry Number

CAS 7721-01-9 — Tantalum(V) chloride

Tantalum(V) chloride is a hygroscopic, yellowish crystalline solid used primarily as a catalyst in organic synthesis, a precursor for tantalum compounds, and in the production of high-purity tantalum metal. It is also employed in chemical vapor deposition for thin-film applications. This product has a CAS number of 7721-01-9, with the molecular formula TaCl5 and a molecular weight of 358.21 g/mol. It must be stored at ambient conditions in a dry, inert atmosphere due to its high reactivity with moisture. The substance carries a **Danger** signal word, indicating severe hazards if improperly handled. Molekula supplies Tantalum(V) chloride from research to bulk quantities with full documentation and ISO 9001:2015 traceability.