NCBI Taxonomy: 1542361

Moquiniastrum paniculatum (ncbi_taxid: 1542361)

found 40 associated metabolites at species taxonomy rank level.

Ancestor: Moquiniastrum

Child Taxonomies: none taxonomy data.

(-)-dehydrocostus lactone

Azuleno(4,5-b)furan-2(3H)-one, decahydro-3,6,9-tris(methylene)-, (3aS-(3a.alpha.,6a.alpha.,9a.alpha.,9b.beta.))-

C15H18O2 (230.1307)


Dehydrocostus lactone is an organic heterotricyclic compound and guaianolide sesquiterpene lactone that is acrylic acid which is substituted at position 2 by a 4-hydroxy-3,8-bis(methylene)decahydoazulen-5-yl group and in which the hydroxy group and the carboxy group have undergone formal condensation to afford the corresponding gamma-lactone. It has a role as a metabolite, a trypanocidal drug, an antineoplastic agent, a cyclooxygenase 2 inhibitor, an antimycobacterial drug and an apoptosis inducer. It is a sesquiterpene lactone, a guaiane sesquiterpenoid, an organic heterotricyclic compound and a gamma-lactone. Dehydrocostus lactone is a natural product found in Marshallia obovata, Cirsium carolinianum, and other organisms with data available. See also: Arctium lappa Root (part of). An organic heterotricyclic compound and guaianolide sesquiterpene lactone that is acrylic acid which is substituted at position 2 by a 4-hydroxy-3,8-bis(methylene)decahydoazulen-5-yl group and in which the hydroxy group and the carboxy group have undergone formal condensation to afford the corresponding gamma-lactone. CONFIDENCE standard compound; ML_ID 36 Dehydrocostus Lactone is a major sesquiterpene lactone isolated from the roots of Saussurea costus. IC50 value: Target: In vitro: Dehydrocostus Lactone promoted apoptosis with increased activation of caspases 8, 9, 7, 3, enhanced PARP cleavage, decreased Bcl-xL expression and increased levels of Bax, Bak, Bok, Bik, Bmf, and t-Bid. We have demonstrated that Dehydrocostus Lactone inhibits cell growth and induce apoptosis in DU145 cells [1]. Dehydrocostus Lactone inhibits NF-kappaB activation by preventing TNF-alpha-induced degradation and phosphorylation of its inhibitory protein I-kappaB alpha in human leukemia HL-60 cells and that dehydrocostus lactone renders HL-60 cells susceptible to TNF-alpha-induced apoptosis by enhancing caspase-8 and caspase-3 activities [2]. Dehydrocostus Lactone inhibited the production of NO in lipopolysaccharide (LPS)-activated RAW 264.7 cells by suppressing inducible nitric oxide synthase enzyme expression. In vivo: Dehydrocostus Lactone decreased the TNF-alpha level in LPS-activated systems in vivo [3]. Dehydrocostus Lactone is a major sesquiterpene lactone isolated from the roots of Saussurea costus. IC50 value: Target: In vitro: Dehydrocostus Lactone promoted apoptosis with increased activation of caspases 8, 9, 7, 3, enhanced PARP cleavage, decreased Bcl-xL expression and increased levels of Bax, Bak, Bok, Bik, Bmf, and t-Bid. We have demonstrated that Dehydrocostus Lactone inhibits cell growth and induce apoptosis in DU145 cells [1]. Dehydrocostus Lactone inhibits NF-kappaB activation by preventing TNF-alpha-induced degradation and phosphorylation of its inhibitory protein I-kappaB alpha in human leukemia HL-60 cells and that dehydrocostus lactone renders HL-60 cells susceptible to TNF-alpha-induced apoptosis by enhancing caspase-8 and caspase-3 activities [2]. Dehydrocostus Lactone inhibited the production of NO in lipopolysaccharide (LPS)-activated RAW 264.7 cells by suppressing inducible nitric oxide synthase enzyme expression. In vivo: Dehydrocostus Lactone decreased the TNF-alpha level in LPS-activated systems in vivo [3].

   

beta-cyclocostunolide

[3aR-(3aalpha,5aalpha,9abeta,9balpha)]-Decahydro-5a-methyl-3,9-bis(methylene)naphtho[1,2-b]furan-2(3H)-one

C15H20O2 (232.1463)


   

Dehydrocostus lactone

3,6,9-trimethylidene-dodecahydroazuleno[4,5-b]furan-2-one

C15H18O2 (230.1307)


Dehydrocostus lactone, also known as dehydro-alpha-curcumene, belongs to guaianolides and derivatives class of compounds. Those are diterpene lactones with a structure characterized by the presence of a gamma-lactone fused to a guaiane, forming 3,6,9-trimethyl-azuleno[4,5-b]furan-2-one or a derivative. Dehydrocostus lactone is practically insoluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). Dehydrocostus lactone can be found in burdock and sweet bay, which makes dehydrocostus lactone a potential biomarker for the consumption of these food products.

   

dehydrocostus lactone

NCGC00385838-01_C15H18O2_Azuleno[4,5-b]furan-2(3H)-one, decahydro-3,6,9-tris(methylene)-, (3aS,6aR,9aR,9bS)-

C15H18O2 (230.1307)


Dehydrocostus Lactone is a major sesquiterpene lactone isolated from the roots of Saussurea costus. IC50 value: Target: In vitro: Dehydrocostus Lactone promoted apoptosis with increased activation of caspases 8, 9, 7, 3, enhanced PARP cleavage, decreased Bcl-xL expression and increased levels of Bax, Bak, Bok, Bik, Bmf, and t-Bid. We have demonstrated that Dehydrocostus Lactone inhibits cell growth and induce apoptosis in DU145 cells [1]. Dehydrocostus Lactone inhibits NF-kappaB activation by preventing TNF-alpha-induced degradation and phosphorylation of its inhibitory protein I-kappaB alpha in human leukemia HL-60 cells and that dehydrocostus lactone renders HL-60 cells susceptible to TNF-alpha-induced apoptosis by enhancing caspase-8 and caspase-3 activities [2]. Dehydrocostus Lactone inhibited the production of NO in lipopolysaccharide (LPS)-activated RAW 264.7 cells by suppressing inducible nitric oxide synthase enzyme expression. In vivo: Dehydrocostus Lactone decreased the TNF-alpha level in LPS-activated systems in vivo [3]. Dehydrocostus Lactone is a major sesquiterpene lactone isolated from the roots of Saussurea costus. IC50 value: Target: In vitro: Dehydrocostus Lactone promoted apoptosis with increased activation of caspases 8, 9, 7, 3, enhanced PARP cleavage, decreased Bcl-xL expression and increased levels of Bax, Bak, Bok, Bik, Bmf, and t-Bid. We have demonstrated that Dehydrocostus Lactone inhibits cell growth and induce apoptosis in DU145 cells [1]. Dehydrocostus Lactone inhibits NF-kappaB activation by preventing TNF-alpha-induced degradation and phosphorylation of its inhibitory protein I-kappaB alpha in human leukemia HL-60 cells and that dehydrocostus lactone renders HL-60 cells susceptible to TNF-alpha-induced apoptosis by enhancing caspase-8 and caspase-3 activities [2]. Dehydrocostus Lactone inhibited the production of NO in lipopolysaccharide (LPS)-activated RAW 264.7 cells by suppressing inducible nitric oxide synthase enzyme expression. In vivo: Dehydrocostus Lactone decreased the TNF-alpha level in LPS-activated systems in vivo [3].

   

beta-cyclocostunolide

beta-cyclocostunolide

C15H20O2 (232.1463)


   

4-[(2r,5e)-6-methyl-7-oxohept-5-en-2-yl]benzaldehyde

4-[(2r,5e)-6-methyl-7-oxohept-5-en-2-yl]benzaldehyde

C15H18O2 (230.1307)


   

β-cyclocostunolide

β-cyclocostunolide

C15H20O2 (232.1463)


   

(2r,3r)-3,5-dihydroxy-2-(4-hydroxyphenyl)-7-[(3-methylbut-2-en-1-yl)oxy]-2,3-dihydro-1-benzopyran-4-one

(2r,3r)-3,5-dihydroxy-2-(4-hydroxyphenyl)-7-[(3-methylbut-2-en-1-yl)oxy]-2,3-dihydro-1-benzopyran-4-one

C20H20O6 (356.126)


   

(1'r,2's,3as,6's,6ar,9s,9's,9ar,9bs)-9'-hydroxy-3,5',6,15'-tetramethylidene-4,5,6a,7,9a,9b-hexahydro-3ah-3'-oxaspiro[azuleno[4,5-b]furan-9,12'-tetracyclo[7.6.1.0²,⁶.0¹³,¹⁶]hexadecan]-13'(16')-ene-2,4',8,14'-tetrone

(1'r,2's,3as,6's,6ar,9s,9's,9ar,9bs)-9'-hydroxy-3,5',6,15'-tetramethylidene-4,5,6a,7,9a,9b-hexahydro-3ah-3'-oxaspiro[azuleno[4,5-b]furan-9,12'-tetracyclo[7.6.1.0²,⁶.0¹³,¹⁶]hexadecan]-13'(16')-ene-2,4',8,14'-tetrone

C30H30O7 (502.1991)


   

5-(9,12-dimethyl-3-oxo-10-{[(2-phenylacetyl)oxy]methyl}-2-oxatricyclo[6.3.1.0⁴,¹²]dodec-4-en-9-yl)-3-methylpentanoic acid

5-(9,12-dimethyl-3-oxo-10-{[(2-phenylacetyl)oxy]methyl}-2-oxatricyclo[6.3.1.0⁴,¹²]dodec-4-en-9-yl)-3-methylpentanoic acid

C28H36O6 (468.2512)


   

[(1s,8r,9r,10r,12r)-9-[(3s)-5-hydroxy-3-methylpentyl]-9,12-dimethyl-3-oxo-2-oxatricyclo[6.3.1.0⁴,¹²]dodec-4-en-10-yl]methyl acetate

[(1s,8r,9r,10r,12r)-9-[(3s)-5-hydroxy-3-methylpentyl]-9,12-dimethyl-3-oxo-2-oxatricyclo[6.3.1.0⁴,¹²]dodec-4-en-10-yl]methyl acetate

C22H34O5 (378.2406)


   

3,5-dihydroxy-2-(4-hydroxyphenyl)-7-[(3-methylbut-2-en-1-yl)oxy]-2,3-dihydro-1-benzopyran-4-one

3,5-dihydroxy-2-(4-hydroxyphenyl)-7-[(3-methylbut-2-en-1-yl)oxy]-2,3-dihydro-1-benzopyran-4-one

C20H20O6 (356.126)


   

(1'r,2's,3as,6's,6ar,9r,9ar,9bs,13's)-13'-hydroxy-3,5',6,15'-tetramethylidene-4,5,6a,7,9a,9b-hexahydro-3ah-3'-oxaspiro[azuleno[4,5-b]furan-9,12'-tetracyclo[7.6.1.0²,⁶.0¹³,¹⁶]hexadecan]-9'(16')-ene-2,4',8,14'-tetrone

(1'r,2's,3as,6's,6ar,9r,9ar,9bs,13's)-13'-hydroxy-3,5',6,15'-tetramethylidene-4,5,6a,7,9a,9b-hexahydro-3ah-3'-oxaspiro[azuleno[4,5-b]furan-9,12'-tetracyclo[7.6.1.0²,⁶.0¹³,¹⁶]hexadecan]-9'(16')-ene-2,4',8,14'-tetrone

C30H30O7 (502.1991)


   

[(1r,2r,4s,4ar,8ar)-4-hydroxy-1-[(3s)-5-hydroxy-3-methylpentyl]-5-(hydroxymethyl)-1,4a-dimethyl-2,3,4,7,8,8a-hexahydronaphthalen-2-yl]methyl 2-phenylacetate

[(1r,2r,4s,4ar,8ar)-4-hydroxy-1-[(3s)-5-hydroxy-3-methylpentyl]-5-(hydroxymethyl)-1,4a-dimethyl-2,3,4,7,8,8a-hexahydronaphthalen-2-yl]methyl 2-phenylacetate

C28H42O5 (458.3032)


   

[(1r,2r,4s,4ar,8ar)-5-formyl-4-hydroxy-1-[(3s)-5-hydroxy-3-methylpentyl]-1,4a-dimethyl-2,3,4,7,8,8a-hexahydronaphthalen-2-yl]methyl 2-phenylacetate

[(1r,2r,4s,4ar,8ar)-5-formyl-4-hydroxy-1-[(3s)-5-hydroxy-3-methylpentyl]-1,4a-dimethyl-2,3,4,7,8,8a-hexahydronaphthalen-2-yl]methyl 2-phenylacetate

C28H40O5 (456.2876)


   

5-{2-[(acetyloxy)methyl]-4-hydroxy-5-(hydroxymethyl)-1,4a-dimethyl-2,3,4,7,8,8a-hexahydronaphthalen-1-yl}-3-methylpent-2-enoic acid

5-{2-[(acetyloxy)methyl]-4-hydroxy-5-(hydroxymethyl)-1,4a-dimethyl-2,3,4,7,8,8a-hexahydronaphthalen-1-yl}-3-methylpent-2-enoic acid

C22H34O6 (394.2355)


   

[4-hydroxy-1-(5-hydroxy-3-methylpentyl)-5-(hydroxymethyl)-1,4a-dimethyl-2,3,4,7,8,8a-hexahydronaphthalen-2-yl]methyl acetate

[4-hydroxy-1-(5-hydroxy-3-methylpentyl)-5-(hydroxymethyl)-1,4a-dimethyl-2,3,4,7,8,8a-hexahydronaphthalen-2-yl]methyl acetate

C22H38O5 (382.2719)


   

[9-(5-hydroxy-3-methylpentyl)-9,12-dimethyl-3-oxo-2-oxatricyclo[6.3.1.0⁴,¹²]dodec-4-en-10-yl]methyl acetate

[9-(5-hydroxy-3-methylpentyl)-9,12-dimethyl-3-oxo-2-oxatricyclo[6.3.1.0⁴,¹²]dodec-4-en-10-yl]methyl acetate

C22H34O5 (378.2406)


   

4-(7-hydroxy-6-methylhept-5-en-2-yl)benzaldehyde

4-(7-hydroxy-6-methylhept-5-en-2-yl)benzaldehyde

C15H20O2 (232.1463)


   

1-(3,3-dimethyloxiran-2-yl)-7-hydroxy-3,7-dimethylnona-3,5,8-trien-1-yl 2-methylbut-2-enoate

1-(3,3-dimethyloxiran-2-yl)-7-hydroxy-3,7-dimethylnona-3,5,8-trien-1-yl 2-methylbut-2-enoate

C20H30O4 (334.2144)


   

[4-hydroxy-1-(5-hydroxy-3-methylpentyl)-5-(hydroxymethyl)-1,4a-dimethyl-2,3,4,7,8,8a-hexahydronaphthalen-2-yl]methyl 2-phenylacetate

[4-hydroxy-1-(5-hydroxy-3-methylpentyl)-5-(hydroxymethyl)-1,4a-dimethyl-2,3,4,7,8,8a-hexahydronaphthalen-2-yl]methyl 2-phenylacetate

C28H42O5 (458.3032)


   

methyl (2e)-5-[(1r,2r,4s,4ar,8ar)-2-[(acetyloxy)methyl]-4-hydroxy-5-(hydroxymethyl)-1,4a-dimethyl-2,3,4,7,8,8a-hexahydronaphthalen-1-yl]-3-methylpent-2-enoate

methyl (2e)-5-[(1r,2r,4s,4ar,8ar)-2-[(acetyloxy)methyl]-4-hydroxy-5-(hydroxymethyl)-1,4a-dimethyl-2,3,4,7,8,8a-hexahydronaphthalen-1-yl]-3-methylpent-2-enoate

C23H36O6 (408.2512)


   

5-[4-hydroxy-5-(hydroxymethyl)-1,4a-dimethyl-2-{[(2-phenylacetyl)oxy]methyl}-2,3,4,7,8,8a-hexahydronaphthalen-1-yl]-3-methylpent-2-enoic acid

5-[4-hydroxy-5-(hydroxymethyl)-1,4a-dimethyl-2-{[(2-phenylacetyl)oxy]methyl}-2,3,4,7,8,8a-hexahydronaphthalen-1-yl]-3-methylpent-2-enoic acid

C28H38O6 (470.2668)


   

[(1r,2r,4s,4ar,8ar)-5-formyl-4-hydroxy-1-[(3s)-5-hydroxy-3-methylpentyl]-1,4a-dimethyl-2,3,4,7,8,8a-hexahydronaphthalen-2-yl]methyl acetate

[(1r,2r,4s,4ar,8ar)-5-formyl-4-hydroxy-1-[(3s)-5-hydroxy-3-methylpentyl]-1,4a-dimethyl-2,3,4,7,8,8a-hexahydronaphthalen-2-yl]methyl acetate

C22H36O5 (380.2563)


   

methyl 5-{2-[(acetyloxy)methyl]-4-hydroxy-5-(hydroxymethyl)-1,4a-dimethyl-2,3,4,7,8,8a-hexahydronaphthalen-1-yl}-3-methylpent-2-enoate

methyl 5-{2-[(acetyloxy)methyl]-4-hydroxy-5-(hydroxymethyl)-1,4a-dimethyl-2,3,4,7,8,8a-hexahydronaphthalen-1-yl}-3-methylpent-2-enoate

C23H36O6 (408.2512)


   

4-(6-methyl-7-oxohept-5-en-2-yl)benzaldehyde

4-(6-methyl-7-oxohept-5-en-2-yl)benzaldehyde

C15H18O2 (230.1307)


   

(2e)-5-[(1r,2r,4s,4ar,8ar)-4-hydroxy-5-(hydroxymethyl)-1,4a-dimethyl-2-{[(2-phenylacetyl)oxy]methyl}-2,3,4,7,8,8a-hexahydronaphthalen-1-yl]-3-methylpent-2-enoic acid

(2e)-5-[(1r,2r,4s,4ar,8ar)-4-hydroxy-5-(hydroxymethyl)-1,4a-dimethyl-2-{[(2-phenylacetyl)oxy]methyl}-2,3,4,7,8,8a-hexahydronaphthalen-1-yl]-3-methylpent-2-enoic acid

C28H38O6 (470.2668)


   

[5-formyl-4-hydroxy-1-(5-hydroxy-3-methylpentyl)-1,4a-dimethyl-2,3,4,7,8,8a-hexahydronaphthalen-2-yl]methyl acetate

[5-formyl-4-hydroxy-1-(5-hydroxy-3-methylpentyl)-1,4a-dimethyl-2,3,4,7,8,8a-hexahydronaphthalen-2-yl]methyl acetate

C22H36O5 (380.2563)


   

(2e)-5-[(1r,2r,4s,4ar,8ar)-2-[(acetyloxy)methyl]-4-hydroxy-5-(hydroxymethyl)-1,4a-dimethyl-2,3,4,7,8,8a-hexahydronaphthalen-1-yl]-3-methylpent-2-enoic acid

(2e)-5-[(1r,2r,4s,4ar,8ar)-2-[(acetyloxy)methyl]-4-hydroxy-5-(hydroxymethyl)-1,4a-dimethyl-2,3,4,7,8,8a-hexahydronaphthalen-1-yl]-3-methylpent-2-enoic acid

C22H34O6 (394.2355)


   

13'-hydroxy-3,5',6,15'-tetramethylidene-4,5,6a,7,9a,9b-hexahydro-3ah-3'-oxaspiro[azuleno[4,5-b]furan-9,12'-tetracyclo[7.6.1.0²,⁶.0¹³,¹⁶]hexadecan]-9'(16')-ene-2,4',8,14'-tetrone

13'-hydroxy-3,5',6,15'-tetramethylidene-4,5,6a,7,9a,9b-hexahydro-3ah-3'-oxaspiro[azuleno[4,5-b]furan-9,12'-tetracyclo[7.6.1.0²,⁶.0¹³,¹⁶]hexadecan]-9'(16')-ene-2,4',8,14'-tetrone

C30H30O7 (502.1991)


   

methyl 5-(9,12-dimethyl-3-oxo-10-{[(2-phenylacetyl)oxy]methyl}-2-oxatricyclo[6.3.1.0⁴,¹²]dodec-4-en-9-yl)-3-methylpentanoate

methyl 5-(9,12-dimethyl-3-oxo-10-{[(2-phenylacetyl)oxy]methyl}-2-oxatricyclo[6.3.1.0⁴,¹²]dodec-4-en-9-yl)-3-methylpentanoate

C29H38O6 (482.2668)


   

4-[(2r,5e)-7-hydroxy-6-methylhept-5-en-2-yl]benzaldehyde

4-[(2r,5e)-7-hydroxy-6-methylhept-5-en-2-yl]benzaldehyde

C15H20O2 (232.1463)


   

(1s,3e,5e,7s)-1-[(2r)-3,3-dimethyloxiran-2-yl]-7-hydroxy-3,7-dimethylnona-3,5,8-trien-1-yl (2z)-2-methylbut-2-enoate

(1s,3e,5e,7s)-1-[(2r)-3,3-dimethyloxiran-2-yl]-7-hydroxy-3,7-dimethylnona-3,5,8-trien-1-yl (2z)-2-methylbut-2-enoate

C20H30O4 (334.2144)


   

[(1r,2r,4s,4ar,8ar)-4-hydroxy-1-[(3s)-5-hydroxy-3-methylpentyl]-5-(hydroxymethyl)-1,4a-dimethyl-2,3,4,7,8,8a-hexahydronaphthalen-2-yl]methyl acetate

[(1r,2r,4s,4ar,8ar)-4-hydroxy-1-[(3s)-5-hydroxy-3-methylpentyl]-5-(hydroxymethyl)-1,4a-dimethyl-2,3,4,7,8,8a-hexahydronaphthalen-2-yl]methyl acetate

C22H38O5 (382.2719)


   

methyl (2e)-5-[(1r,2r,4s,4ar,8ar)-4-hydroxy-5-(hydroxymethyl)-1,4a-dimethyl-2-{[(2-phenylacetyl)oxy]methyl}-2,3,4,7,8,8a-hexahydronaphthalen-1-yl]-3-methylpent-2-enoate

methyl (2e)-5-[(1r,2r,4s,4ar,8ar)-4-hydroxy-5-(hydroxymethyl)-1,4a-dimethyl-2-{[(2-phenylacetyl)oxy]methyl}-2,3,4,7,8,8a-hexahydronaphthalen-1-yl]-3-methylpent-2-enoate

C29H40O6 (484.2825)


   

[5-formyl-4-hydroxy-1-(5-hydroxy-3-methylpentyl)-1,4a-dimethyl-2,3,4,7,8,8a-hexahydronaphthalen-2-yl]methyl 2-phenylacetate

[5-formyl-4-hydroxy-1-(5-hydroxy-3-methylpentyl)-1,4a-dimethyl-2,3,4,7,8,8a-hexahydronaphthalen-2-yl]methyl 2-phenylacetate

C28H40O5 (456.2876)


   

methyl 5-[4-hydroxy-5-(hydroxymethyl)-1,4a-dimethyl-2-{[(2-phenylacetyl)oxy]methyl}-2,3,4,7,8,8a-hexahydronaphthalen-1-yl]-3-methylpent-2-enoate

methyl 5-[4-hydroxy-5-(hydroxymethyl)-1,4a-dimethyl-2-{[(2-phenylacetyl)oxy]methyl}-2,3,4,7,8,8a-hexahydronaphthalen-1-yl]-3-methylpent-2-enoate

C29H40O6 (484.2825)


   

(3r)-5-[(1s,8r,9r,10r,12r)-9,12-dimethyl-3-oxo-10-{[(2-phenylacetyl)oxy]methyl}-2-oxatricyclo[6.3.1.0⁴,¹²]dodec-4-en-9-yl]-3-methylpentanoic acid

(3r)-5-[(1s,8r,9r,10r,12r)-9,12-dimethyl-3-oxo-10-{[(2-phenylacetyl)oxy]methyl}-2-oxatricyclo[6.3.1.0⁴,¹²]dodec-4-en-9-yl]-3-methylpentanoic acid

C28H36O6 (468.2512)


   

methyl (3r)-5-[(1s,8r,9r,10r,12r)-9,12-dimethyl-3-oxo-10-{[(2-phenylacetyl)oxy]methyl}-2-oxatricyclo[6.3.1.0⁴,¹²]dodec-4-en-9-yl]-3-methylpentanoate

methyl (3r)-5-[(1s,8r,9r,10r,12r)-9,12-dimethyl-3-oxo-10-{[(2-phenylacetyl)oxy]methyl}-2-oxatricyclo[6.3.1.0⁴,¹²]dodec-4-en-9-yl]-3-methylpentanoate

C29H38O6 (482.2668)


   

5a-methyl-3,9-dimethylidene-octahydronaphtho[1,2-b]furan-2-one

5a-methyl-3,9-dimethylidene-octahydronaphtho[1,2-b]furan-2-one

C15H20O2 (232.1463)