CAS: 67969-82-8 EC No: 267-983-8 MDL No: MFCD00011345 UN No: UN3129; Haz Class: 4.3 (8); Packing Group: II Liquid Molecular Formula: HBF₄·C₄H₁₀O MW: 161.93 Flash Point: 36°C (97°F) Density (g/mL): 1.19