ChemNet > CAS > 125-46-2 2,6-diacetyl-1,2,3,9b-tetrahydro-7,9-dihydroxy-8,9b-dimethyldibenzofuran-1,3-dione

125-46-2 2,6-diacetyl-1,2,3,9b-tetrahydro-7,9-dihydroxy-8,9b-dimethyldibenzofuran-1,3-dione

product Name	2,6-diacetyl-1,2,3,9b-tetrahydro-7,9-dihydroxy-8,9b-dimethyldibenzofuran-1,3-dione
CAS No	125-46-2;7562-61-0
Synonyms	Antibiotic lichen acid; usnic acid; L/D-Usnic acid; (+)-Usnic acid; plus-usnic acid; (+)-usnic acid from usnea dasypoga; 2,6-diacetyl-7,9-dihydroxy-8,9b-dimethyldibenzo[b,d]furan-1,3(2H,9bH)-dione; 2,6-diacetyl-3,7,9-trihydroxy-8,9b-dimethyldibenzo[b,d]furan-1(9bH)-one; (9bS)-2,6-diacetyl-7,9-dihydroxy-8,9b-dimethyldibenzo[b,d]furan-1,3(2H,9bH)-dione; (9bR)-2,6-diacetyl-3,7,9-trihydroxy-8,9b-dimethyldibenzo[b,d]furan-1(9bH)-one; (+)-Usnic Acid; (+)-Usniacin; Usinic Acid
Molecular Formula	C₁₈H₁₆O₇
Molecular Weight	344.3154
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/h5,21-23H,1-4H3/t18-/m0/s1
EINECS	204-740-7;231-456-0
Molecular Structure
Density	1.54g/cm³
Melting point	201-203℃
Boiling point	605.4°C at 760 mmHg
Refractive index	1.678
Flash point	223.3°C
Vapour Pressur	3E-15mmHg at 25°C
Hazard Symbols	Xn:Harmful;
Risk Codes	R22:;
Safety Description	S36:;

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