TETRAHYDRO-2H-PYRAN-2-ONE; 5-Valerolactone; oxan-2-one; 2H-Pyran-2-one, tetrahydro-; tetrahydropyran-2-one; Tetrahydro-2-pyranone; .delta.-Valerolactone; tetrahydro-2-pyrone; UNII-14V1X9149L; .delta.-Valeryllactone; tetrahydro-pyran-2-one; 1-Oxacyclohexan-2-one; NSC 6247; MFCD00006645; CHEMBL452383; 2-Perhydropyranone; 14V1X9149L; delta-Valerolactone, 99%; Penta-1,5-lactone; 3H-4,5,6-trihydropyran-2-one; d-valerolactone; delta-Valeryllactone; Poly-delta-valerolactone; Cyclopentanolide; 5-pentanolide; Pentan-5-olide; Delta valerolactone; Delta-Valerolactotie; EINECS 208-807-1; .delta.-Pentalactone; tetrahydro-4H-pyranone; PubChem20208; AI3-25024; Pentanoic acid, 5-hydroxy-, delta-lactone; Valeric acid, delta-hydroxy-, delta-lactone; WLN: T6OVTJ; Poly-.delta.-valerolactone; EC 208-807-1; ACMC-1B23E; DSSTox_CID_24438; DSSTox_RID_80228; DSSTox_GSID_44438; SCHEMBL37722; KSC205K1D; Valeric acid, .delta.-lactone; 5-Hydroxypentanoic acid lactone; DTXSID6044438; CTK1A5511; Pentanoic acid, .delta.-lactone; NSC6247; NSC-6247; NSC65442; STR08736; ZINC6661193; delta-Valerolactone, technical grade; Tox21_302166; ANW-32007; BDBM50360797; NSC-65442; s3099; SBB060349; AKOS009158729; CS-W013713; HY-W012997; MCULE-4682307363; 5-Hydroxypentanoic acid .delta.-lactone; KS-00000G07; NCGC00255756-01; AK101117; SC-65111; SY018264; DB-050659; FT-0624505; ST51046546; Pentanoic acid, 5-hydroxy-, .delta.-lactone; C02240; K-9788; (Difluoro-trimethylsilanyl-methyl)-phosphonicacid; Q903610; Valeric acid, .delta.-hydroxy-, .delta.-lactone; W-105654