• 121725-93-7
• 2(3H)-Furanone,dihydro-3,4-dimethyl-5-(1-methylethyl)-,(3alpha,4bta,5bta)-(9CI)
• 2(3H)-Furanone,dihydro-3,4-dimethyl-5-(1-methylethyl)-,(3alpha,4bta,5bta)-(9CI)

• 187592-29-6
• 3(2H)-Furanone, 4-[4-(ethylthio)-2-pyridinyl]-5-(methylamino)-2-[3-(trifluoromethyl)phenyl]-
• 3(2H)-Furanone, 4-[4-(ethylthio)-2-pyridinyl]-5-(methylamino)-2-[3-(trifluoromethyl)phenyl]-

• 187592-22-9
• 3(2H)-Furanone, 4-[4-(ethylthio)-2-pyridinyl]-5-(methylamino)-2-[2-(trifluoromethyl)phenyl]-
• 3(2H)-Furanone, 4-[4-(ethylthio)-2-pyridinyl]-5-(methylamino)-2-[2-(trifluoromethyl)phenyl]-

• 187592-11-6
• 3(2H)-Furanone, 2-(2-chlorophenyl)-4-(4-methoxy-2-pyridinyl)-5-(methylamino)-
• 3(2H)-Furanone, 2-(2-chlorophenyl)-4-(4-methoxy-2-pyridinyl)-5-(methylamino)-

• 854703-08-5
• 2,3,4(5H)-Furantrione, 5-hexyl-, 3-phenylhydrazone (5CI)
• 2,3,4(5H)-Furantrione, 5-hexyl-, 3-phenylhydrazone (5CI)

• 725203-12-3
• 2,3,4(5H)-Furantrione, 3-oxime
• 2,3,4(5H)-Furantrione, 3-oxime

• 187592-01-4
• 3(2H)-Furanone, 4-(4-bromo-2-pyridinyl)-2-(2-chlorophenyl)-5-(methylamino)-
• 3(2H)-Furanone, 4-(4-bromo-2-pyridinyl)-2-(2-chlorophenyl)-5-(methylamino)-

• 329769-49-5
• 3(2H)-Furanone, 5-methyl-4-(1-pyrrolidinyl)-
• 3(2H)-Furanone, 5-methyl-4-(1-pyrrolidinyl)-

• 127489-81-0
• 2(3H)-Furanone, 3-acetyldihydro-4-hydroxy-4,5,5-trimethyl-3-propyl- (9CI)
• 2(3H)-Furanone, 3-acetyldihydro-4-hydroxy-4,5,5-trimethyl-3-propyl- (9CI)

• 187591-87-3
• 3(2H)-Furanone, 2-(2-chlorophenyl)-5-(ethylamino)-4-(4-methyl-2-pyridinyl)-
• 3(2H)-Furanone, 2-(2-chlorophenyl)-5-(ethylamino)-4-(4-methyl-2-pyridinyl)-

• 109918-10-7
• 3(2H)-Furanone, 2-bromo-
• 3(2H)-Furanone, 2-bromo-

• 187591-68-0
• 3(2H)-Furanone, 5-(ethylamino)-4-(4-methyl-2-pyridinyl)-2-phenyl-
• 3(2H)-Furanone, 5-(ethylamino)-4-(4-methyl-2-pyridinyl)-2-phenyl-

• 114480-40-9
• 2(5H)-Furanone, 3-amino-4-hydroxy-
• 2(5H)-Furanone, 3-amino-4-hydroxy-

• 187592-14-9
• 3(2H)-Furanone, 2-(3-chlorophenyl)-4-(4-methoxy-2-pyridinyl)-5-(methylamino)-
• 3(2H)-Furanone, 2-(3-chlorophenyl)-4-(4-methoxy-2-pyridinyl)-5-(methylamino)-

• 300809-96-5
• 2(3H)-Furanone, 5-[methyl(phenylmethyl)amino]-3,4-bis(trimethylsilyl)-
• 2(3H)-Furanone, 5-[methyl(phenylmethyl)amino]-3,4-bis(trimethylsilyl)-

• 906719-71-9
• 2(5H)-Furanone, 3,4-dichloro-5-(phenylamino)-
• 2(5H)-Furanone, 3,4-dichloro-5-(phenylamino)-

• 255872-19-6
• 2(5H)-Furanone,3,4-diethoxy-5-methoxy-5-methyl-(9CI)
• 2(5H)-Furanone,3,4-diethoxy-5-methoxy-5-methyl-(9CI)

• 959236-02-3
• 2(3H)-Furanone, dihydro-4-[(trimethylsilyl)oxy]-
• 2(3H)-Furanone, dihydro-4-[(trimethylsilyl)oxy]-

• 187592-24-1
• 3(2H)-Furanone, 2-(3-chlorophenyl)-4-[4-(ethylthio)-2-pyridinyl]-5-(methylamino)-
• 3(2H)-Furanone, 2-(3-chlorophenyl)-4-[4-(ethylthio)-2-pyridinyl]-5-(methylamino)-

• 783254-50-2
• 2,3,4(5H)-Furantrione, 5-methyl-, 3-oxime
• 2,3,4(5H)-Furantrione, 5-methyl-, 3-oxime

• 187591-83-9
• 3(2H)-Furanone, 5-(methylamino)-4-(4-methyl-2-pyridinyl)-2-[3-(trifluoromethyl)phenyl]-
• 3(2H)-Furanone, 5-(methylamino)-4-(4-methyl-2-pyridinyl)-2-[3-(trifluoromethyl)phenyl]-

• 860689-19-6
• 2(3H)-Furanone, 5-(2,3-dihydro-1,4-benzodioxin-6-yl)dihydro-
• 2(3H)-Furanone, 5-(2,3-dihydro-1,4-benzodioxin-6-yl)dihydro-

• 191666-22-5
• 2(3H)-Furanone,5-[(3,4-dihydroxyphenyl)methyl]dihydro-,(5R)-(9CI)
• 2(3H)-Furanone,5-[(3,4-dihydroxyphenyl)methyl]dihydro-,(5R)-(9CI)

• 109273-68-9
• 2(5H)-Furanone, 4-ethyl-3-ethynyl- (9CI)
• 2(5H)-Furanone, 4-ethyl-3-ethynyl- (9CI)

• 771467-22-2
• 2(3H)-Furanone,3-amino-4-ethyldihydro-,(3S,4S)-(9CI)
• 2(3H)-Furanone,3-amino-4-ethyldihydro-,(3S,4S)-(9CI)

• 562085-83-0
• 2(3H)-Furanone,dihydro-4,4-dimethyl-3-(2-propenyloxy)-(9CI)
• 2(3H)-Furanone,dihydro-4,4-dimethyl-3-(2-propenyloxy)-(9CI)

• 791596-19-5
• 2(3H)-Furanone,dihydro-5-[(1-methyl-1H-imidazol-5-yl)methyl]-3-propyl-(9CI)
• 2(3H)-Furanone,dihydro-5-[(1-methyl-1H-imidazol-5-yl)methyl]-3-propyl-(9CI)

• 372500-61-3
• 2(3H)-Furanone,3-acetyl-4-methyl-
• 2(3H)-Furanone,3-acetyl-4-methyl-

• 374561-89-4
• 2(3H)-Furanone, 4-ethenyldihydro-3-(hydroxymethylene)-, (3Z)- (9CI)
• 2(3H)-Furanone, 4-ethenyldihydro-3-(hydroxymethylene)-, (3Z)- (9CI)

• 370876-82-7
• 2(5H)-Furanone,4-amino-5-(cyclopentyloxy)-(9CI)
• 2(5H)-Furanone,4-amino-5-(cyclopentyloxy)-(9CI)

• 802845-51-8
• 2(3H)-Furanone,3-amino-5-(bromomethyl)dihydro-4-methyl-(8CI)
• 2(3H)-Furanone,3-amino-5-(bromomethyl)dihydro-4-methyl-(8CI)

• 375348-90-6
• 2(3H)-Furanone,5-ethoxydihydro-4-[(2R)-1-methyl-2-pyrrolidinyl]-,(4S)-rel-(9CI)
• 2(3H)-Furanone,5-ethoxydihydro-4-[(2R)-1-methyl-2-pyrrolidinyl]-,(4S)-rel-(9CI)

• 92220-25-2
• 2(5H)-Furanone,4-acetyl-3-amino-5-methylene-
• 2(5H)-Furanone,4-acetyl-3-amino-5-methylene-

• 497-23-4
• γ-クロトノラクトン
• 2(5H)-Furanone

• 770698-94-7
• 2(3H)-Furanone, 3-amino-5-butyldihydro-, (3S,5S)- (9CI)
• 2(3H)-Furanone, 3-amino-5-butyldihydro-, (3S,5S)- (9CI)

• 370875-26-6
• 2(3H)-Furanone,4-amino-5-butoxydihydro-(9CI)
• 2(3H)-Furanone,4-amino-5-butoxydihydro-(9CI)

• 120533-53-1
• 3(2H)-Furanone,5-amino-2-ethyl-2-methyl-(9CI)
• 3(2H)-Furanone,5-amino-2-ethyl-2-methyl-(9CI)

• 708989-63-3
• 2(5H)-Furanone, 5-[(1-methylpropyl)imino]-, (5Z)- (9CI)
• 2(5H)-Furanone, 5-[(1-methylpropyl)imino]-, (5Z)- (9CI)

• 109332-79-8
• 2(5H)-Furanone, 3-ethyl-4-ethynyl- (9CI)
• 2(5H)-Furanone, 3-ethyl-4-ethynyl- (9CI)

• 114434-99-0
• 2(3H)-Furanone,4,5-dichlorodihydro-(9CI)
• 2(3H)-Furanone,4,5-dichlorodihydro-(9CI)

• 370876-76-9
• 2(5H)-Furanone, 4-amino-5-(1-methylethoxy)- (9CI)
• 2(5H)-Furanone, 4-amino-5-(1-methylethoxy)- (9CI)

• 781662-97-3
• 2(5H)-Furanone,3-(hydroxymethyl)-5-(1-methylethyl)-(9CI)
• 2(5H)-Furanone,3-(hydroxymethyl)-5-(1-methylethyl)-(9CI)

• 780722-77-2
• 2(5H)-Furanone, 3-(3,6-dihydro-6-hydroxy-5-methyl-2H-pyran-2-yl)-5-hydroxy- (9CI)
• 2(5H)-Furanone, 3-(3,6-dihydro-6-hydroxy-5-methyl-2H-pyran-2-yl)-5-hydroxy- (9CI)

• 120912-36-9
• 2(5H)-Furanone, 5-(chloroacetyl)-3,4-dihydroxy-, (S)- (9CI)
• 2(5H)-Furanone, 5-(chloroacetyl)-3,4-dihydroxy-, (S)- (9CI)

• 138760-70-0
• 2(5H)-Furanone, 3,4-dihydroxy-5-(hydroxymethyl)-, (R)- (9CI)
• 2(5H)-Furanone, 3,4-dihydroxy-5-(hydroxymethyl)-, (R)- (9CI)

• 746545-98-2
• 2(3H)-Furanone, dihydro-3-(hydroxymethylene)-5-propyl- (9CI)
• 2(3H)-Furanone, dihydro-3-(hydroxymethylene)-5-propyl- (9CI)

• 747359-10-0
• 2(3H)-Furanone, 3-aminodihydro-4,4,5,5-tetramethyl- (9CI)
• 2(3H)-Furanone, 3-aminodihydro-4,4,5,5-tetramethyl- (9CI)

• 441283-49-4
• 2(3H)-Furanone, 3-acetyldihydro-3-(2-propynyl)- (9CI)
• 2(3H)-Furanone, 3-acetyldihydro-3-(2-propynyl)- (9CI)

• 565435-37-2
• 2(5H)-Furanone, 5-hydroxy-3-[(1R)-1-hydroxyethyl]-4-methyl- (9CI)
• 2(5H)-Furanone, 5-hydroxy-3-[(1R)-1-hydroxyethyl]-4-methyl- (9CI)

• 767241-27-0
• 2(5H)-Furanimine,4-bromo-5-ethyl-5-methyl-(9CI)
• 2(5H)-Furanimine,4-bromo-5-ethyl-5-methyl-(9CI)

• 307503-83-9
• 2(3H)-Furanone, 3-acetyl-5-methyl- (9CI)
• 2(3H)-Furanone, 3-acetyl-5-methyl- (9CI)

• 155322-90-0
• 2(3H)-Furanone, 5-acetyldihydro-4-methyl-, (4S-cis)- (9CI)
• 2(3H)-Furanone, 5-acetyldihydro-4-methyl-, (4S-cis)- (9CI)

• 69460-80-6
• エピイソピロツリン
• 2(3H)-Furanone, dihydro-3-((S)-hydroxyphenylmethyl)-4-((1-methyl-1H-im idazol-4-yl)methyl)-, (3S,4R)-

• 154389-75-0
• 2(3H)-Furanone,5-ethoxydihydro-4-methyl-4-(trifluoromethyl)-,cis-(9CI)
• 2(3H)-Furanone,5-ethoxydihydro-4-methyl-4-(trifluoromethyl)-,cis-(9CI)

• 344329-81-3
• 2(5H)-Furanone,3,4-dichloro-5-methylene-(9CI)
• 2(5H)-Furanone,3,4-dichloro-5-methylene-(9CI)

• 774145-50-5
• 2(3H)-Furanone,4-aminodihydro-,(R)-(9CI)
• 2(3H)-Furanone,4-aminodihydro-,(R)-(9CI)

• 722448-76-2
• 2(3H)-Furanone,4-aminodihydro-5-(methylthio)-(9CI)
• 2(3H)-Furanone,4-aminodihydro-5-(methylthio)-(9CI)

• 20019-64-1
• 5,5-ジメチル-2,5-ジヒドロフラン-2-オン
• 2(5H)-Furanone,5,5-dimethy

• 2865-82-9
• ジヒドロ-5-エチル-5-メチルフラン-2(3H)-オン
• 2(3H)-FURANONE,5-ETHYLDIHYDRO

• 266694-56-8
• 2(3H)-Furanone,dihydro-5-methyl-3-methylene-5-(1-methylethyl)-,(5R)-(9CI)
• 2(3H)-Furanone,dihydro-5-methyl-3-methylene-5-(1-methylethyl)-,(5R)-(9CI)

• 219907-86-5
• 2(5H)-Furanone, 5-acetyl-5-methyl-, (5R)- (9CI)
• 2(5H)-Furanone, 5-acetyl-5-methyl-, (5R)- (9CI)

• 751422-55-6
• 2(3H)-Furanone, 5-ethyldihydro-3-(hydroxymethylene)- (9CI)
• 2(3H)-Furanone, 5-ethyldihydro-3-(hydroxymethylene)- (9CI)

• 496947-06-9
• 2(5H)-Furanone, 3-ethyl-4-(hydroxymethyl)- (9CI)
• 2(5H)-Furanone, 3-ethyl-4-(hydroxymethyl)- (9CI)

• 40010-99-9
• 2(3H)-Furanone, 3-acetyl-5-butyldihydro-
• 2(3H)-Furanone, 3-acetyl-5-butyldihydro-

• 549545-97-3
• 2(3H)-Furanone, 3-ethyldihydro-4-hydroxy-4-(hydroxymethyl)- (9CI)
• 2(3H)-Furanone, 3-ethyldihydro-4-hydroxy-4-(hydroxymethyl)- (9CI)

• 79263-61-9
• 2(5H)-Furanone, 5-(1-pentynyl)- (9CI)
• 2(5H)-Furanone, 5-(1-pentynyl)- (9CI)

• 343927-26-4
• 2(5H)-Furanone,3-amino-4-hydroxy-5-methyl-(9CI)
• 2(5H)-Furanone,3-amino-4-hydroxy-5-methyl-(9CI)

• 791753-62-3
• 2(3H)-Furanone,5-[(dimethylamino)methyl]dihydro-,(R)-(9CI)
• 2(3H)-Furanone,5-[(dimethylamino)methyl]dihydro-,(R)-(9CI)

• 220308-41-8
• 2(3H)-Furanone, 3-acetyldihydro-3-methyl-4-methylene-, (3S)- (9CI)
• 2(3H)-Furanone, 3-acetyldihydro-3-methyl-4-methylene-, (3S)- (9CI)

• 672927-94-5
• 3,3(2H)-Furandicarboxylicacid,2-ethyldihydro-4-methyl-,dimethylester,(2R,4R)-rel-(9CI)
• 3,3(2H)-Furandicarboxylicacid,2-ethyldihydro-4-methyl-,dimethylester,(2R,4R)-rel-(9CI)

• 152580-30-8
• 2(3H)-Furanone,4-aminodihydro-,(S)-(9CI)
• 2(3H)-Furanone,4-aminodihydro-,(S)-(9CI)

• 488821-54-1
• 2(3H)-Furanone,5-ethyldihydro-4-methyl-5-(1-methylethyl)-,(4R,5S)-rel-(9CI)
• 2(3H)-Furanone,5-ethyldihydro-4-methyl-5-(1-methylethyl)-,(4R,5S)-rel-(9CI)

• 744174-60-5
• 2(3H)-Furanone, 4-amino-5-ethynyldihydro- (9CI)
• 2(3H)-Furanone, 4-amino-5-ethynyldihydro- (9CI)

• 169396-07-0
• 2(3H)-Furanone,5-butyl-5-ethoxydihydro-3,4-dihydroxy-,[3S-(3alpha,4alpha,5alpha)]-(9CI)
• 2(3H)-Furanone,5-butyl-5-ethoxydihydro-3,4-dihydroxy-,[3S-(3alpha,4alpha,5alpha)]-(9CI)

• 370876-75-8
• 2(5H)-Furanone, 4-amino-5-propoxy- (9CI)
• 2(5H)-Furanone, 4-amino-5-propoxy- (9CI)

• 79263-58-4
• 2(3H)-Furanone, 5-(1-pentynyl)- (9CI)
• 2(3H)-Furanone, 5-(1-pentynyl)- (9CI)

• 40456-51-7
• (3R,4R)-3-(3,4-ジメトキシベンジル)-4-[(1,3-ベンゾジオキソール-5-イル)メチル]-ジヒドロフラン-2(3H)-オン
• 2(3H)-Furanone, 4-(1,3-benzodioxol-5-ylmethyl)-3-((3,4-dimethoxyphenyl )methyl)dihydro-, (3R-trans)-

• 501653-21-0
• 2(5H)-Furanone,3-ethyl-4-[(phenylmethyl)amino]-(9CI)
• 2(5H)-Furanone,3-ethyl-4-[(phenylmethyl)amino]-(9CI)

• 773838-40-7
• 2(3H)-Furanone, 3-amino-5-butyldihydro-, (3S,5R)- (9CI)
• 2(3H)-Furanone, 3-amino-5-butyldihydro-, (3S,5R)- (9CI)

• 724477-81-0
• 3(2H)-Furanone, 5-ethenyldihydro-2-(1-methylethylidene)-, (5R)- (9CI)
• 3(2H)-Furanone, 5-ethenyldihydro-2-(1-methylethylidene)-, (5R)- (9CI)

• 365532-34-9
• 2(3H)-Furanone,3-bromo-(9CI)
• 2(3H)-Furanone,3-bromo-(9CI)

• 501653-16-3
• 2(5H)-Furanone,3-ethyl-4-[(methylsulfonyl)oxy]-(9CI)
• 2(5H)-Furanone,3-ethyl-4-[(methylsulfonyl)oxy]-(9CI)

• 136814-02-3
• 2(3H)-Furanone, 3-acetyldihydro-4-(1-methylethyl)-, cis- (9CI)
• 2(3H)-Furanone, 3-acetyldihydro-4-(1-methylethyl)-, cis- (9CI)

• 774-64-1
• 3,4-ジメチル-5-ペンチリデン-2(5H)-フラノン
• 2(5H)-Furanone, 3,4-dimethyl-5-pentylidene-, (5Z)-

• 724477-80-9
• 3(2H)-Furanone, 5-ethyldihydro-2-(1-methylethylidene)-, (5S)- (9CI)
• 3(2H)-Furanone, 5-ethyldihydro-2-(1-methylethylidene)-, (5S)- (9CI)

• 137910-54-4
• 2(5H)-Furanone, 4-acetyl-3-methyl- (9CI)
• 2(5H)-Furanone, 4-acetyl-3-methyl- (9CI)

• 741290-49-3
• 2(3H)-Furanone,5-ethyldihydro-3-(phenylmethoxy)-,(3R,5R)-rel-(9CI)
• 2(3H)-Furanone,5-ethyldihydro-3-(phenylmethoxy)-,(3R,5R)-rel-(9CI)

• 819077-13-9
• 2(5H)-Furanone,5-[[(1R,6S,7S,8S)-8-methyl-9-oxabicyclo[4.2.1]nona-2,4-dien-7-yl]methylene]-,(5E)-(9CI)
• 2(5H)-Furanone,5-[[(1R,6S,7S,8S)-8-methyl-9-oxabicyclo[4.2.1]nona-2,4-dien-7-yl]methylene]-,(5E)-(9CI)

• 112895-75-7
• 2(5H)-Furanone,5-ethoxy-3-phenyl-(9CI)
• 2(5H)-Furanone,5-ethoxy-3-phenyl-(9CI)

• 183387-39-5
• 2(3H)-Furanone,dihydro-3-hydroxy-4-methyl-5-(1-methylethyl)-,(3S,4S,5R)-(9CI)
• 2(3H)-Furanone,dihydro-3-hydroxy-4-methyl-5-(1-methylethyl)-,(3S,4S,5R)-(9CI)

• 738604-54-1
• 2(5H)-Furanone,5-(5-hydroxypentyl)-5-methoxy-(9CI)
• 2(5H)-Furanone,5-(5-hydroxypentyl)-5-methoxy-(9CI)

• 596818-34-7
• 2(3H)-Furanone, dihydro-3-[[(2-hydroxyethyl)amino]methylene]-, (3E)- (9CI)
• 2(3H)-Furanone, dihydro-3-[[(2-hydroxyethyl)amino]methylene]-, (3E)- (9CI)

• 596818-33-6
• 2(3H)-Furanone, dihydro-3-[(2-propenylamino)methylene]-, (3E)- (9CI)
• 2(3H)-Furanone, dihydro-3-[(2-propenylamino)methylene]-, (3E)- (9CI)

• 187592-16-1
• 3(2H)-Furanone, 2-(2,4-dichlorophenyl)-4-(4-methoxy-2-pyridinyl)-5-(methylamino)-
• 3(2H)-Furanone, 2-(2,4-dichlorophenyl)-4-(4-methoxy-2-pyridinyl)-5-(methylamino)-

• 499140-47-5
• 2(5H)-Furanone,5-ethyl-4-hydroxy-5-methyl-3-(1-methylethoxy)-,(5S)-(9CI)
• 2(5H)-Furanone,5-ethyl-4-hydroxy-5-methyl-3-(1-methylethoxy)-,(5S)-(9CI)

• 739328-95-1
• 2(3H)-Furanone,3-aminodihydro-3-methyl-,(3R)-(9CI)
• 2(3H)-Furanone,3-aminodihydro-3-methyl-,(3R)-(9CI)

• 773041-35-3
• 2(3H)-Furanone,5-aminodihydro-,(5S)-(9CI)
• 2(3H)-Furanone,5-aminodihydro-,(5S)-(9CI)

• 131953-10-1
• 2(3H)-Furanone, 3-(bromoacetyl)dihydro- (9CI)
• 2(3H)-Furanone, 3-(bromoacetyl)dihydro- (9CI)

• 747399-54-8
• 2(3H)-Furanone,3-amino-5-ethyldihydro-,(3S,5S)-(9CI)
• 2(3H)-Furanone,3-amino-5-ethyldihydro-,(3S,5S)-(9CI)

• 121725-92-6
• 2(3H)-Furanone,dihydro-3,4-dimethyl-5-(1-methylethyl)-,(3alpha,4bta,5alpha)-(9CI)
• 2(3H)-Furanone,dihydro-3,4-dimethyl-5-(1-methylethyl)-,(3alpha,4bta,5alpha)-(9CI)