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Term:
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butenolide +     
(-)-microperfuranone 
(1r,4s,7r,8s)-7-[(2e,4e)-hexa-2,4-dienoyl]-3-hydroxy-8-[(2s)-3-hydroxy-2,4-dimethyl-5-oxo-2,5-dihydrofuran-2-yl]-5-[(2e,4e)-1-hydroxyhexa-2,4-dien-1-ylidene]-1,3-dimethylbicyclo[2.2.2]octane-2,6-dione 
(2S)-2-(4-hydoxybenzyl)-3-(4-hydroxyphenyl)-2-furonol carboxylate 
(2S)-2-(6-methylheptyl)-2H-uran-5-one 
(2S)-2-[(6S)-6-methyloctyl]-2H-uran-5-one 
(4E,7Z)-5,9,9-Trimethyl-11-oxabicyclo[8.2.1]trideca-1(13),4,7-triene-6,12-dione 
(4R)-2,4-dimethyl-5-oxo-2,5-dihydrofuran-3-carboxylic acid 
(4S)-2,4-dimethyl-5-oxo-2,5-dihydrofuran-3-carboxylic acid 
(4S)-4,8,10-trihydroxy-10-methyldodec-2-en-1,4-olide 
(4S,5R,5aR)-1,4-dihydroxy-5,7,7-trimethyl-1,4,5,5a,6,8-hexahydroazuleno[5,6-c]uran-3-one 
(4Z,7Z)-5,9,9-Trimethyl-11-oxabicyclo[8.2.1]trideca-1(13),4,7-triene-6,12-dione 
(5-oxo-2-sulfonato-2,5-dihydrofuran-2-yl)acetate 
(5S,S)-5-methyl-3-(2-methylbutyl)furan-2(5H)-one 
(5S,S)-5-methyl-3-(3-methylpentyl)furan-2(5H)-one 
(5S,S)-5-methyl-3-(4-methylhexyl)furan-2(5H)-one 
(5S,S)-5-methyl-3-(5-methylheptyl)furan-2(5H)-one 
(5Z)-3-(4-chlorophenyl)-4-hydroxy-5-(naphthalen-1-ylmethylidene)furan-2(5H)-one 
(8alpha)-sclerotiorumin B 
(8beta)-sclerotiorumin B 
(E)-ascladiol 
(S)-2-(2'-hydroxyethyl)-4-methyl- -butyrolactone 
(S,Z)-5-(3′,4′-Dihydroxybutylidene)-3-propylfuran-2(5H)-one 
(Z)-3-(3,4-dihydroxybenzylidene)-5-(3,4-dihydroxyphenyl)-2(3H)-furanone 
(Z)-4-hydroxy-4-methyl-2-(1-hexenyl)-2-butenolide 
(Z)-4-hydroxymethyl-2-(1-hexenyl)-2-butenolide 
(Z)-5-(2,3-dihydroxybutylidene)-3-((E)-prop-1-en-1-yl)furan-2(5H)-one 
(Z)-6,6',7,3'a-Diligustilide 
(Z)-ligustilide  
1''-acetylaporpinone B 
1,2-Dehydrolactarolide A 
10-Methyldodec-2-en-4-olide 
10-Methyldodec-3-en-4-olide 
10-Methylundec-2-en-4-olide 
10-Methylundec-3-en-4-olide 
10alpha-hydroxyeremophil-7(11)-en-2,3:12,8-diolide 
13-deoxytetrodecamycin 
15,16-Epoxy-5,10-seco-clerodan-1(10),2,4,13(16),14-pentaen-18,19-olide 
2(5H)-Furanone,5-ethyl 
2,3-8,9-Bisanhydrolactarorufin 
2,3-Dimethylmaleic anhydride 
2,5-Dichloro-carboxymethylenebut-2-en-4-olide 
2,6Z-Nonadien-4-olide 
2-chloro-4-carboxy(chloro)methylenebut-2-en-4-olide 
2-chloro-4-carboxymethylenebut-2-en-1,4-olide +  
2-Chloro-5-methyl-cis-dienelactone 
2-nonen-4-olide 
2-oxo-3-(5-oxofuran-2-ylidene)propanoic acid 
3'-hydroxy-N-(2-oxo-2,5-dihydrofuran-4-yl)propionamide 
3,13-Dihydroxy-8-oxo-2(9),6-lactaradien-5-oic acid y-lactone 
3,4,7-trihydroxy-7-methyl-2-[(E)-prop-1-enyl]-3,4-dihydro-2H-furo[3,4-b]pyran-5-one 
3,4-dihydroxy-2,5-furandione 
3,4-dihydroxy-5-(2-hydroxyethanimidoyl)oxolan-2-one 
3-(1-Hydroxy-2-methylbutyl)-4-methyl-2(5H)-furanone) 
3-(1-Hydroxy-2-methylproyl)-4-methyl-2(5H)-furanone 
3-(4-Hydroxy-5-oxo-3-phenyl-2H-furan-2-yl)propanoic acid 
3-[2-(6,7-dihydroxy-1,2,4a-trimethylspiro[3,4,6,7,8,8a-hexahydro-2H-naphthalene-5,2'-oxirane]-1-yl)ethyl]-2-hydroxy-2H-furan-5-one 
3-Chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone  
3-hydroxy-2-(hydroxymethyl)-4-(13-methyltetradecanoyl)-2H-furan-5-one 
3-hydroxy-2-(hydroxymethyl)-4-(14-methylhexadecanoyl)-2H-furan-5-one 
3-hydroxy-2-(hydroxymethyl)-4-(14-methylpentadecanoyl)-2H-furan-5-one 
3-hydroxy-2-(hydroxymethyl)-4-pentadecanoyl-2H-furan-5-one 
3-hydroxy-2-(hydroxymethyl)-4-tetradecanoyl-2H-furan-5-one 
3-hydroxymethyl-4-methyl-furan-2(5H)-one 
3-o-Ethyl-L-ascorbic acid 
3-O-Ethylascorbic acid 
4 R, 5S-Talactone C 
4 S, 5S-Talactone C 
4-((E)-pent-1-enyl)-3-((1S,2S)-1,2-dihydroxybut-3-enyl)-5H-furan-2-one 
4-Carboxymethyl-2,3-dimethylbut-2-en-1,4 
4-Carboxymethyl-2,4-dimethylbut-2-en-1,4 
4-carboxymethylenebut-2-en-4-olide +  
4-Fluoromuconolactone 
4-hexadecanoyl-3-hydroxy-2-(hydroxymethyl)-2H-furan-5-one 
4-hydroxy-5-(4-hydroxybenzylidene)-3-(4-hydroxyphenyl)furan-2(5H)-one +  
4-Methyl-5-oxo-2-pentyl-2,5-dihydro-3-furancarboxylic acid 
4-Methyl-5H-furan-2-one 
4R-Talactone B 
4S-Talactone B 
5(S)-[1-(1(S)-hydroxybut-2-enyl)]-furan-2-one 
5,5-Dimethyl-2(5H)-furanone 
5-(1,3-butadiene-1-yl)-3-(propene-1-yl)-2-(5H)-furanone 
5-(4′,6′-dihydroxy-6′-methyloctyl)furan-2(5H)-one 
5-(6-Methyl-6-hydroxyheptyl)furan-2(5H)-one 
5-(6-Methyl-6-hydroxyoctyl)furan-2(5H)-one 
5-(but-3-en-1-yl)-3-propylfuran-2(5H)-one 
5-(E)-But-2-enylidene-3-(E)-propenyl-5H-furan-2-one 
5-(E)-But-2-enylidene-3-propyl-5H-furan-2-one 
5-(hydroxymethyl)-4-methoxy-2,5-dihydrofuran-2-one 
5-ethyl-3-hydroxy-4-methyl-2(5H)-furanone 
5-Fluoromuconolactone 
5-Hydroxy-3,4,5-trimethylfuran-2(5H)-one 
5-Hydroxy-3-(1-hydroxy-2-methylbutyl)-4-methyl-2(5H)-furanone 
5-Hydroxy-3-(1-hydroxy-2-methylpropyl)-4-methyl-2(5H)-furanone 
5-hydroxy-3-methoxy-5-methyl-4-butylfuran-2(5H)-one 
5-hydroxy-3-methyl-4-(1-hydroxylethyl)-furan-2(5H)-one 
5-hydroxy-3-methylfuran-2(5H)-one 
5-hydroxy-4-methoxy-5-(1-methylethenyl)-2-furanone 
5-hydroxy-5-(methoxymethyl)-4-methylfuran-2(5H)-one 
5-oxo-2-furylacetic acid +  
5-Pentyl-3h-furan-2-one 
5-phenyl-3-(phenylmethylene)furan-2(3H)-one 
6,7-dihydroxy-2-propyl-2,4-octadien-4-olide 
6-Methoxy-5(6)-dihydropenicillic acid 
8-Chloro-9-hydroxy-8,9-deoxyasperlactone 
8-hydroxypregaliellalactone B 
9-Chloro-8-hydroxy-8,9-deoxyasperlactone 
[10,11-Dihydroxy-6-(methoxymethyl)-1,10-dimethyl-5-oxo-4,14-dioxatricyclo[9.2.1.03,7]tetradeca-2,6-dien-8-yl] 2-methylprop-2-enoate 
[4-(6-methylheptanoyl)-5-oxo-2,5-dihydrofuran-3-yl]methyl phosphate 
A88696C 
A88696F 
Abybetaomicin X 
Agglomerin A 
Agglomerin B 
Agglomerin C 
Agglomerin D 
agglomerin F 
aglaiabbreviatin A 
aglaiabbreviatin B 
ajugaciliatin A 
ajugaciliatin B 
ajugaciliatin C 
ajugaciliatin D 
ajugaciliatin E 
ajugaciliatin F 
ajugaciliatin G 
ajugaciliatin H 
ajugaciliatin I 
ajugaciliatin J 
ajugacumbin A 
ajugacumbin A chlorohydrin 
ajugacumbin F 
ajugalide B 
ajugalide C 
ajugamarin A1 
ajugamarin A1 chlorohydrin 
ajugamarin A2 
ajugamarin A2 chlorohydrin 
ajugamarin B1 
ajugamarin G1 
ajugamarin H1 
ajuganipponin A 
ajuganipponin B 
ajugapantin A 
Ajugarin I 
ajugatakasin A 
ajugatakasin B 
alpha-angelica lactone 
Anemonin  
Annularin G 
Annularin H 
aplysinoplide A 
aplysinoplide B 
aplysinoplide C 
Aporpinone B 
Appenolide A 
Ascorbic acid 3-sulfate 
Aspergilactone A 
Aspergilactone B 
Aspergilsmin E 
Aspergone A 
Aspergone B 
Aspergone C 
Aspergone D 
asperlactone 
Aspersclerolide B 
Aspersclerotiorone A 
Aspersclerotiorone B 
Aspersclerotiorone D 
Aspersclerotiorone G 
Aspertamarinolide A 
Aspiketolactonol 
Aspilactonol A 
Aspilactonol B 
Aspilactonol C 
Aspilactonol D 
Aspilactonol E/F 
Aspilactonol G 
aspulvinone +  
azadiradionolide 
Basidalin 
BE-23372M 
beta-angelica lactone +  
Bislongiquinolide 
Bisorbibutenolide 
Bombardolide A 
Bombardolide B 
Bombardolide C 
Bombardolide D 
Botryolide E 
Bovolide 
Brasilamide G 
Brasilamide H 
but-2-en-4-olide +   
but-3-en-4-olide +  
butyrolactone I 
butyrolactone II 
Cancrolide B 
cardenolides +   
carlosic acid +  
carlosic acid methyl ester 
Chaetomellic acid A anhydride 
Clavicorolide A 
Clitolactone 
Cordyanhydride B 
daibulactone A, (rel)- 
daibulactone B, (rel)- 
Deoxyenhygrolide A 
Deoxyenhygrolide B 
Dihydrotetrodecamycin 
Dihydrotrichotetronine 
Dihydroxerulin 
Diplobifuranylone D 
Dtxsid00904892 
dysolenticin B 
dysolenticin C 
elaeodendroside B 
elaeodendroside F 
elaeodendroside G 
elaeodendroside T 
eutypoid B 
eutypoid C 
eutypoid D 
eutypoid E 
F-36316 A 
Ficifuranone B 
firocoxib 
Flammulinolide B 
Flammulinolide C 
Flammulinolide D 
Flammulinolide E 
Flammulinolide F 
flupyradifurone  
Fusidilactone D 
Fusopoltide D 
Fusopoltide E 
Gamma-Abscisolactone 
Geralcin B 
Geralcin D 
gigantetronenin 
gigantrionenin 
Gliomasolide F 
Graphenone 
Grifolaone A 
Guanacastepene J 
Guanacastepene L 
Gymnoascol 
Gymnoascolide B 
Gymnoascolide C 
Harzianolide 
hedychilactone D 
Hexylitaconic acid A 
Inonofarnesane 
Integrasone 
Ipomeamaronolide 
Isoaigialone A 
Isoaigialone C 
Isomuronic acid 
Isosarcophine 
JBIR-89 
Kobifuranone B 
Kobifuranone C 
L-ascorbic acid 2-sulfate 
L-erythro-5-(1-Hydroxyethyl)-2(5H)-furanone 
L-erythro-ascorbate 
leucosesterlactone 
Lichesterinic acid 
linderalactone 
LSM-4499 
Mabetaarilactone B 
Mabetaarilactone D 
Maculalactone 
Maculalactone B 
Maculalactone C 
Maklamicin, (rel)- 
Malleicyprol 
manoalide  
Meruliolactone 
MH-031 
MKN-003A 
Musacin D 
Myrolactone B 
N-butan-2-yl-3,8-dimethyl-2-oxo-1-oxaspiro[4.5]dec-3-ene-4-carboxamide 
Nemanifuranone E 
Nemanifuranone F 
Nemanilactone A 
Nemanilactone B 
Nemanilactone C 
Norbotrydialone acetate 
Norpandamarilactonine A 
Pandamarilactam 3x 
Pandamarilactonine A 
Pandanamine 
Penicilactone A 
Penicilactone C 
penicillic acid 
Penilactonol A 
Pestalafuranone A 
Pestalafuranone B 
Pestalafuranone C 
Pestalafuranone D 
Pestalafuranone E 
Pestalafuranone F 
Pestalafuranone G 
Pestalafuranone H 
Pestalafuranone I 
Pestalafuranone J 
Pestalolide 
Pestalolide C 
Pesthetoxin 
Pezizolide E 
Pezizolide G 
Phellinone 
Phomoxydiene C 
Plicatilisin A 
Plicatilisin G 
Pregaliellactone D 
Pregaliellactone E 
Pregaliellalactone C 
Pregaliellalactone F 
protoanemonin 
pseudoneolinderane 
Pulvinic acid 
Pulvinic acid dilactone 
Pyromyxone D 
R-xenofuranone B 
Radianspene H 
Radianspene I 
Ralfuranone A 
Ralfuranone B 
Ralfuranone C 
Ralfuranone D 
Ralfuranone J 
Ralfuranone L 
Rhodocorane H 
Rhodocorane I 
Rhodocorane J 
rofecoxib  
Rubetaulanobiline B 
Rubetaulanobiline C 
S-xenofuranone B 
sarmentologenin +  
scutebarbatine C 
scutebarbatine D 
scutebarbatine E 
sotolone 
spiromesifen  
Spiromesifen Metabolite M01 
strigolactone +  
T39butenolide 
Tetrodecamycin 
Tokinolide A 
Tremutin F 
Tremutin G 
Trichocyalide A 
Tricladolide D 
trilobacin 
triptonide  
Vertinolide 
Viridicatic acid 
vitamin C +   
viteagnusin I 
vitexilactone 
Vulpinic acid 
Xanthofusin 
Xenofuranone A 
Xenofuranone B 
Xerulin 
xi-3,5-Dimethyl-2(5H)-furanone 
xi-5-Isopropyl-2(5H)-furanone 
Xylogiblactone A 
Xylogiblactone B 
Xylogiblactone C 
yadanziolide V 
Zymonic acid 

Synonyms
Exact Synonyms: 2-ethyl-2H-uran-5-one
Related Synonyms: Formula=C6H8O2 ;   InChI=1S/C6H8O2/c1-2-5-3-4-6(7)8-5/h3-5H,2H2,1H3 ;   InChIKey=GOUILHYTHSOMQJ-UHFFFAOYSA-N ;   SMILES=O1C(CC)C=CC1=O
Xrefs: CAS:2407-43-4 ;   Chemspider:16103

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