2,5-Cyclohexadiene-1,4-dione, 2-methyl-5-(1-methylethyl)- 2,5-Cyclohexadiene-1,4-dione, 5-isopropyl-2-methyl- 2-Isopropyl-5-methylbenzoquinone 490-91-5 NSC2228 THYMOQUINONE Thymoquinon WLN: L6V DVJ B1 EY1&1 p-Cymene-2,5-dione p-Mentha-3,6-diene-2,5-dione