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6159-66-6 (9bs)-2,6-diacetyl-7,9-dihydroxy-8,9b-dimethyl(2h,9bh)-dibenzofuran-1,3-dione

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Product Name (9bS)-2,6-diacetyl-7,9-dihydroxy-8,9b-dimethyl(2H,9bH)-dibenzofuran-1,3-dione
CAS No. 6159-66-6
Synonyms Usnic acid, (-)-; NSC 5889; (9bS)-2,6-diacetyl-7,9-dihydroxy-8,9b-dimethyl-(2H,9bH)-dibenzofuran-1,3-dione; 1,3(2H,9bH)-Dibenzofurandione, 2,6-diacetyl-7,9-dihydroxy-8,9b-dimethyl-, (9bS)-; (9bS)-2,6-diacetyl-3,7,9-trihydroxy-8,9b-dimethyldibenzo[b,d]furan-1(9bH)-one; (9bR)-2,6-diacetyl-7,9-dihydroxy-8,9b-dimethyldibenzo[b,d]furan-1,3(2H,9bH)-dione
InChI InChI=1/C18H16O7/c1-6-14(22)12(8(3)20)16-13(15(6)23)18(4)10(25-16)5-9(21)11(7(2)19)17(18)24/h5,11,22-23H,1-4H3/t11?,18-/m0/s1
Molecular Formula C18H16O7
Molecular Weight 344.3154
Density 1.49g/cm3
Boiling point 594.8°C at 760 mmHg
Flash point 219.1°C
Refractive index 1.643