CAS 4139-61-1 appears in our catalog under these names: 6-Bromo-4-hydroxycoumarin, >98.0%(GC)(T), 6-Bromo-4-hydroxycoumarin 95%, 6-Bromo-4-hydroxycoumarin, 95%, 95%, 6-Bromo-4-hydroxycoumarin, 98%. Offered by: TCI, Ambeed, Chemat, Fluorochem. Available pack sizes: 1g, 5g, 100mg, 250mg, 25g, 10g.