Boc-O-2-​[[(1,​1-​dimethylethyl)​dimethylsilyl]​oxy]​-1-​butane is an intermediate used in the synthesis Bis(2-butoxyethyl) 2-(2-Hydroxybutoxy)ethyl Phosphate Triester (B415225), which is derived from Bis(2-butoxyethyl) 2-Hydroxyethyl Phosphate Triester (B415190), a metabolite of Tris(2-butyloxyethyl)phosphate (T875030), an organophosphate that can be used in the preparation of flame retardant such as viscose fiber.