Diisobutyryl peroxide Trade Name: Initiator DIPB English Name: Diisobutyryl peroxide Chemical Name: Diisobutyryl peroxide Chemical Structure Formula: Molecular Formula: C8H14O4 Molecular Weight: 174.2 Theoretical Reactive Oxygen Amount: 9.18% CAS No.: 3437-84-1 UN No. 3115 Level: Type 5.2 D Liquid organic peroxide, temperature controlled transportation. Rail and air transportation are prohibited. Safety Indicators: Half-life: 0.1 hr: 57°C 1 hr: 39°C 10 hr: 23°C Thermal Stability Data: Self-accelerating Decomposition Temp.