Abstract Tire wear compounds N-(1, 3-dimethylbutyl)-N′-phenyl-p-phenylenediamine
(6PPD) and its derivative 6PPD-quinone have been considered as emerging pollutants and …

N-(1, 3-Dimethylbutyl)-N′-phenyl-p-phenylenediamine (6PPD) is a chemical added to tires
to prevent their oxidative degradation. 6PPD is highly reactive with ozone and oxygen …

Abstract A recently identified chemical, 2-((4-Methylpentan-2-yl) amino)-5-(phenylamino)
cyclohexa-2, 5-diene-1, 4-dione (6PPD-quinone; 6PPD-Q), is a transformation product of an …

The antioxidant 6-PPD has been widely used to prevent cracking and thermal oxidative
degradation and to extend the service life of tire rubber. 6-PPD quinone (6-PPDQ) is formed …

We here report chemical characteristics relevant to the fate and transport of the recently
discovered environmental toxicant 6PPD-quinone (2-((4-methylpentan-2-yl) amino)-5 …

Abstract The antioxidant N-(1, 3-Dimethylbutyl)-N′-phenyl-p-phenylenediamine (6PPD) is
used to protect the rubber in tires from oxidation, which extends the life of the tire. When …

The huge consumption of the tire rubber antioxidant N-(1, 3-dimethylbutyl)-N′-phenyl-p-
phenylenediamine (6PPD) has resulted in pervasive contamination in aquatic environments …

Prompted by a recent report that 6PPD-quinone (6PPD-q), a by-product of a common tire
manufacturing additive that is present in road runoff, is toxic to coho salmon (Oncorhynchus …

Substituted para-phenylenediamine (PPD) antioxidants have been extensively used to
retard oxidative degradation of tire rubber and were found to pervade multiple …

Recent findings that 2-anilo-5-[(4-methylpentan-2-yl) amino] cyclohexa-2, 5-diene-1, 4-dione
(6PPD-quinone), the transformation product of a common tire rubber antioxidant, is acutely …