5,6-Dimethoxydibenz(a,h)anthracene , its cas register number is 63040-49-3. It also can be called 3,4-Dimethoxy-1,2:5,6-dibenzanthracene ; 3,4-Dimethoxy-dba ; 4-06-00-07046 (Beilstein Handbook Reference) ; BRN 3427604 .