.beta.-Pinene 127-91-3 2(10)-Pinene 2,2,6-Trimethylbicyclo[3.1.1]hept-2-ene Bicyclo[3.1.1]heptane, 6,6-dimethyl-2-methylene- NSC59190 Nopinen Nopinene PINENE, BETA Pinene Pseudopinen Pseudopinene Terebenthene