1,4-Methano-1H-cyclopenta[c]furan-3(3aH)-one, tetrahydro-2-methyl-, exo- 1,4-Methano-1H-cyclopenta[c]furan-3(3aH)-one, tetrahydro-3a-methyl- 2-exo-Hydroxy-7-methyl-7-norbornanecarboxylic acid 7-lactone 30244-06-5 7-Norboranecarboxylic acid, 2-hydroxy-7-methyl-, 7-lactone, exo NSC92374