2H-1-Benzopyran-2-one, 3-chloro-7-hydroxy-4-methyl- 3-Chloro-4-methyl-7-hydroxycoumarin 6174-86-3 7-Hydroxy-4-methyl-3-chlorocoumarin Chlorferone Coumarin, 3-chloro-7-hydroxy-4-methyl- NSC44204