1937 ning hta, hkum tsup dik htum ai p-phenylenedahine ana hpe ninghkap ai tsi hpe hpan shalat wa ai, dai hpe "4000 series hpe ninghkap ai tsi" ngu shamying ai, dai hta 4010, 4010NA, 4020,4030. ni lawm ai.
Antioxidant 4010NA: antioxidant IPPD, N-isopropyl-N, phenyl-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-N ngu nna mung shamying ai.
Antioxidant 4010: Also known as antioxidant CPPD, N-cyclohexyl-N'-phenyl-p-phenylenediamine.
Antioxidant 4020: Also known as antioxidant 6PPD, N-(1,3-dimethyl)butyl-N'-phenyl-p-phenylenediamine.
Antioxidant 4030: Antioxidant 7PPD, N'-bis (1,{4}}dimethyl)-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-p-bs ngu nna mung shamying ai.