3,6-dimethyl-4,5,6,7-tetrahydro-1-benzofuran 3,6-dimethyl-4,5,6,7-tetrahydrobenzofuran BENZOFURAN, 4,5,6,7-TETRAHYDRO-3,6-DIMETHYL- NSC315249 p-Mentha-3,8-diene, 3,9-epoxy- NCGC00090822-01 W323500_ALDRICH ST5307591