2-Acetoxy-5-norbornene 5-Norbonen-2-yl acetate 5-Norbornen-2-ol, acetate 6143-29-9 AI3-08988 Bicyclo(2.2.1)hept-5-en-2-ol, acetate EINECS 228-144-1 Norborn-5-en-2-yl acetate