Di-tert-butyl peroxide Trade name: initiator DTBP English name: Di-tert-butyl peroxide Chemical name: Di-tert-butyl peroxide Structural formula: Molecular formula: C8H17O2 Molecular weight: 146.2 Theoretical reactive oxygen species: 10.94% CAS No.: 110-05-4 UN No. 3107 Einecs: 203-733-6 IMO/IMDG 5227 Level: 5.2 Road Transportation (ARD): 5.2 Type E liquid organic peroxide. Properties: This product is a slightly yellow trans