Muna 1937, iyo yakazara p-phenyleneneensiamine mumiririri akagadzirwa, izvo zvakanzi "4000 Series Anti-aging Agent", kusanganisira 4010, 4010na, 4020, {{}}}
Antioxidant 4010na: zvakare inozivikanwa seAntioxidant Ippd, N-isopropyl-n, phenyl-p-phenylenenecsiamine {}}.}
Antioxidant 4010: zvakare inozivikanwa seAntioxidant CPPD, N-CyclomELEXYL-N'-PHERENL-P-PHENLEENDIENSESIAMINE {}}
Antioxidant 4020: Zvakare inozivikanwa seAntioxidant 6ppd, n- (1, {}} dimethyl) butyl-n'-phenyl-phenylenneneamine .
Antioxidant 4030: zvakare anozivikanwa seAsixidant 7ppd, n, n'-bis (1, {4} dimetylpintyl) -P-phenyleneddiamine {}