CAS 5581-75-9 appears in our catalog under these names: 6–Phenylhexanoic Acid, 6-Phenylhexanoic acid, 6-Phenylhexanoic Acid, >98.0%(GC)(T), 6-Phenylhexanoic acid 98%, 6-PHENYLHEXANOIC ACID, 99%. Offered by: GLPBio, Biosynth, TCI, Ambeed, Sigma-Aldrich. Available pack sizes: 1g, 25g, 5g, 2g, 10g, 500g, 250mg, 100g.