(4-Hydroxy-2-oxo-2H-1-benzopyran-3-yl)(4-oxo-4H-1-benzopyran-3-yl)acetic acid ethyl ester 2183-16-6 ACETIC ACID, (4-HYDROXY-2-OXO-2H-1-BENZOPYRAN-3-YL)(4-OXO-4H-1-BENZOPYRAN-3-YL)- Acetic acid, (4-hydroxy-2-oxo-2H-1-benzopyran-3-yl)(4-oxo-4H-1-benzopyran-3-yl)-, ethyl ester BRN 1332696 Ethyl chromonyl-(3)4'-hydroxycoumarinyl-(3')-acetate Ethylesteru kyseliny (chromonyl-3)-(4-hydroxykumarinyl-3)-octove [Czech]