CAS 58001-78-8 appears in our catalog under these names: (1R,5S)-Bicyclo(3.1.0)hexan-2-one, (1R,5S)-Bicyclo[3.1.0]hexan-2-one 95%, (1R,5S)-Bicyclo[3.1.0]hexan-2-one, 95%, 95%. Offered by: Biosynth, Ambeed, Chemat. Available pack sizes: 100mg, 250mg, 1g.