1,3-Indandione, 2-(4-methylphenyl)- 1H-Indene-1,3(2H)-dione, 2-(4-methylphenyl)- 2-(4-Methylphenyl)-1,3-indandione 4-07-00-02581 (Beilstein Handbook Reference) 7561-48-0 BRN 2106995