1,2-dimethyl-1,2,3,6-tetrahydropyridazine InChI=1/C6H12N2/c1-7-5-3-4-6-8(7)2/h3-4H,5-6H2,1-2H pyridazine, 1,2,3,6-tetrahydro-1,2-dimethyl-