Furan-2(5H)-one; BUTENOLIDE; 2-Butenolide; gamma-Crotonolactone; Isocrotonolactone; 2-Buten-4-olide; 2-Oxo-2,5-dihydrofuran; Crotonolactone; 2H-furan-5-one; gamma-Crotolactone; 4-Hydroxy-2-butenoic acid lactone; alpha,beta-Crotonolactone; 2-(5H)-furanone; 2-Buten-1,4-olide; delta,alpha,beta-Butenolide; gamma-Hydroxycrotonic acid lactone; 5H-furan-2-one; 5-hydrofuran-2-one; 2-Butenoic acid gamma-lactone; 2-Butenoic acid-gamma-lactone; .gamma.-Crotonolactone; 2,5-dihydrofuran-2-one; 4-Hydroxycrotonic acid gamma-lactone; NSC 197009; UNII-8KXK25H388; but-2-en-4-olide; 2-Butenoic acid, 4-hydroxy-, gamma-lactone; MFCD00005376; 4-Hydroxy-2-butenoic acid gamma-lactone; CHEMBL166223; 2-Butenoic acid-.gamma.-lactone; 8KXK25H388; .gamma.-Hydroxycrotonic acid lactone; 4-Hydroxy-2-butenoic acid .gamma.-lactone; 2(5H)-Furanone, 95%; .DELTA..alpha.,.beta.-Butolide; 2-Butenoic acid, .gamma.-lactone; .DELTA..alpha.,.beta.-Butenolide; CCRIS 5722; EINECS 207-839-3; BRN 0383585; g-Crotonolactone; 5H-furanone; HSDB 8151; .gamma.-Crotolactone; 2,5-Dihydrofuranone; 5 H-Furan-2-one; (5H)-furan-2-one; ACMC-209khu; alpha,alpha,beta-Butolide; 2(5H)FURANONE; 2(5H)-Furanone, 98%; 5-17-09-00112 (Beilstein Handbook Reference); KSC235S1R; laquo gammaRaquo -crotolactone; 4-Hydroxycrotonic acid lactone; .alpha.,.beta.-Crotonolactone; laquo gammaRaquo -crotonolactone; DTXSID7075422; CTK1D5918; VIHAEDVKXSOUAT-UHFFFAOYSA-; ACT09335; BCP15247; KS-00000MG9; NSC51296; ZINC1682476; .delta.,.alpha.,.beta.-Butenolide; 4285AE; ANW-30832; BBL103594; BDBM50360798; NSC-51296; NSC197009; SBB040281; STL557404; AKOS000268618; CS-W008270; HY-W008270; laquo deltaRaquo ,alpha,beta-butenolide; MCULE-4296503663; NSC-197009; AK163254; SC-50260; ST092353; SY017893; 2-Butenoic acid-laquo gammaRaquo -lactone; AB0052652; DB-027466; 2-Oxo-2,5-dihydrofuran(2-[5H]-furanone); AM20100212; Crotonic acid, 4-hydroxy-, .gamma.-lactone; FT-0608698; laquo gammaRaquo -hydroxycrotonic acid lactone; 2-Butenoic acid, 4-hydroxy-, .gamma.-lactone; C17601; K-9234; 497F234; 2(5H)-Furanone (laquo gammaRaquo -crotonolactone); J-506134; Q4596886