Antioxidants Product CAS No. Tertiary Butyl Hydroquinone (TBHQ) 1948-33-0 Butylated Hydroxy Anisole (BHA) 25013-16-5 Monomethyl Ether Hydroquinone (MEHQ) 150-76-5 Hydroquinone Dimethyl Ether (HQDME) 150-78-7 Di-tert-butyl Hydroquinone (DTBHQ) 88-58-4