Antioxidant T502A is widely used as an antioxidant additive for fuel oil and lubricating oil, and it can also be used as an antioxidant for rubber and plastics. This product can be used alone or in combination. It is the replacement product of T501 (BHT) antioxidant, and the antioxidant effect of the same dosage is better than T501. It is suitable for various products using antioxidant T501, especially in fuel oil. It has superior performance and is easy to use, and its price is lower than that of antioxidant T501.