CAS Registry Number

CAS 64-20-0 — Tetramethylammonium bromide

Tetramethylammonium bromide is a quaternary ammonium salt widely used as a phase-transfer catalyst in organic synthesis, a reagent in biochemical research, and a component in electroplating and textile treatments. It appears as a hygroscopic, white crystalline solid with high solubility in water and polar solvents. Catalogue details include CAS 64-20-0, molecular formula (CH3)4N(Br), and a molecular weight of 154.05 g/mol. Store at ambient conditions; the product is classified with a signal word of Danger due to its toxicity and corrosive properties. Molekula supplies Tetramethylammonium bromide from research to bulk quantities with full documentation and ISO 9001:2015 traceability.