CAS 19484-57-2 appears in our catalog under these names: 6–Chloro–4–hydroxycoumarin, 6-Chloro-4-hydroxycoumarin, >97.0%(GC)(T), 6-Chloro-4-hydroxycoumarin 98%, 6-CHLORO-4-HYDROXYCOUMARIN, 97%, 6-Chloro-4-hydroxy-2H-chromen-2-one, 98%, 98%. Offered by: GLPBio, TCI, Ambeed, Sigma-Aldrich, Chemat. Available pack sizes: 1g, 5g, 250mg, 25g, 100mg, 10g.