Antioxidant A is a new polar rubber plasticizer-NBR plasticizer, which is used for high-pressure oil-resistant hose and industrial oil-resistant rubber sheet, which can replace dimethyl phthalate. Developed successfully. This product has the characteristics of high open flash point, low acid value, low volatility, good compatibility with rubber, uniform compound mixing, easy processing, etc., and has little environmental pollution. It is mainly suitable for rubber products such as NBR and CR. Also suitable for SBR, NR and their combined rubber products.