1,2-Dimethyl-2,3,3a,6a-tetrahydrocyclopenta(b)pyrrole 4-20-00-01990 (Beilstein Handbook Reference) 74195-76-9 BRN 0001238 Cyclopenta(b)pyrrole, 2,3,3a,6a-tetrahydro-1,2-dimethyl-