Tert-butyl peroxyacetate Trade name: TBPA English name: Tert-butyl peroxyacetate Chemical name: tert-butyl peroxyacetate Structural formula: Molecular formula: Molecular Weight: C6H12O3 Molecular Weight: 132.18 Theoretical Active Oxygen Quantity: 12.11% CAS No.: 107-71-1 UN No. 3103 Properties. Colorless transparent liquid, diluted with benzene, odorless mineral oil, isododecane and other preparations. Insoluble in water, soluble in most organic solvents, decomposition temperature 159℃, specific gravity (200C) 0.923, refractive (200C)