16:20-Dimethylcholanthrene 2,3-Dimethylcholanthrene 3-05-00-02499 (Beilstein Handbook Reference) 63041-62-3 BRN 3335464 Benz(j)aceanthrylene, 1,2-dihydro-2,3-dimethyl- Cholanthrene, 2,3-dimethyl-