Tetrabutylammonium hydroxide 40% in Water – HP-Grade von Lars | Jan. 30, 2025 Back to Catalog Tetrabutylammonium hydroxide 40% in Water - HP-Grade Alternative Names: N,N,N-Tributyl-1-butanaminium hydroxide, TBAH, TBAOH CAS-Number: 2052-49-5 EC-Number: 218-147-6 Molecular Formula: C16H37NO Molecular Weight: 259,47