CAS 55720-22-4 appears in our catalog under these names: 1,2-Dihydroacenaphthylene-5-carboxylic acid, 95%, 1,2-Dihydroacenaphthylene-5-carboxylic acid, 95+%, 5-Acenaphthenecarboxylic acid, 1,2-Dihydroacenaphthylene-5-carboxylic acid, ≥97%, ≥97%, 1,2-Dihydroacenaphthylene-5-carboxylic acid. Offered by: Combi-blocks, AmBeed, Biosynth, Chemat, Fluorochem. Available pack sizes: 1g, 5g, 0,5g, 0,25g, 10g.