Description Bicyclo[2.2.1]hept-5-ene-2-carboxaldehyde, 94+% For Research & Development Not for drug, clinical use in humans, for food or food additive use Specifications: TEST SPECIFICATION APPEARANCE COLORLESS TO YELLOW LIQUID INFRARED SPECTRUM CONFORMS TO STRUCTURE. GAS LIQUID 94.0% (MINIMUM) AS A MIXTURE OF ISOMERS CAS: 5453-80-5 FORMULA: C8H10O