CAS Registry Number

CAS 10026-13-8 — Phosphorus pentachloride

Phosphorus pentachloride (PCl5) is a highly reactive inorganic compound used as a chlorinating agent in organic synthesis, pharmaceuticals, and pesticide production. It converts hydroxyl (OH) and carboxyl (COOH) groups into their corresponding chlorides, enabling key transformations in chemical manufacturing. CAS 10026-13-8, molecular formula PCl5, molecular weight 208.24 g/mol. Store at ambient temperature in a dry, well-ventilated area, away from moisture and incompatible materials. Signal word: Danger (corrosive, toxic if inhaled or in contact with skin). Molekula supplies phosphorus pentachloride from research to bulk quantities with full documentation and ISO 9001:2015 traceability.