1,1,7-Trimethyltricyclo(2.2.1.0(2.6))heptane 1,7,7-Trimethyltricyclo(2.2.1.0(sup2,6))heptane 1,7,7-Trimethyltricyclo(2.2.1.02,6)heptane 20347-59-5 22273-90-1 508-32-7 AI3-26465 EINECS 208-083-7 NSC 86978 Tricyclene Tricyclene (VAN) Tricyclo(2.2.1.02,6)heptane, 1,7,7-trimethyl- Tricyclo[2.2.1.02,6]heptane, 1,7,7-trimethyl-