Ka 1937, moemeli ea phehellang oa P-Phenylellie ea lifofane e qapileng, e bitsoang "Agent"
Antioxidant 4010na: Hape e tsejoang ka hore ke antioxidant ifunl, n,.
Antioxidant 4010: E tsejoang e le Antioxidant Cppd
Antioxidant ea 4020: Hape e tsejoang e le Antioxidant ea 6DPD, N- 0, 1
Antioxidant 4030: Hape e tsejoang ka hore ke Antioxidant 7PPD, N, N's (1,} disiberine}.