is an aromatic amine
used industrially as an antioxidant
to prevent degradation of turbine oils, transformer oils
, hydraulic fluids
, and greases
. It is particularly effective for hydrocarbon
products produced by cracking
, which are characterized by high olefin
content. It is also used as an inhibitor in production of various vinyl monomers
It has the appearance of a corrosive red liquid. It is a skin sensitizer and can be absorbed through skin. It is toxic.
It is the active component of eg. AO-22, AO-24, AO-29, and VANLUBE antioxidant mixtures, and Santoflex 44PD inhibitor.