2555-29-5 4-18-00-01545 (Beilstein Handbook Reference) 4-Methyl-7-hydroxy-8-acetylcoumarin 8-Acetyl-7-hydroxy-4-methylcoumarin BRN 0195795 COUMARIN, 8-ACETYL-7-HYDROXY-4-METHYL- NSC 19027