ε-​Caprolactone

• CAT Number: R063930
• CAS Number: 502-44-3
• Molecular Formula: C6H10O2
• Molecular Weight: 114.14
• Purity: ≥95%
• Synonyms: 2-Oxepanone; Hexanoic Acid, 6-hydroxy-lactone; 1,6-Hexanolide; 2-Oxooxopane; 6-Hexanolactone; 6-Hexanolide; 6-Hydroxyhexanoic Acid Lactone; C 0702; Caprolactone; Caprolactone A; Epsilon-caprolactone; Hexamethylene Oxide, 2-oxo-; Hexanoic Acid, 6-hydr
• Storage: -20°C
• IUPAC Name: oxepan-2-one
• InChI: InChI=1S/C6H10O2/c7-6-4-2-1-3-5-8-6/h1-5H2
• InChIKey: PAPBSGBWRJIAAV-UHFFFAOYSA-N
• SMILES: C1CCC(=O)OCC1

ε-Caprolactone（Cat No.:R063930）is a seven-membered cyclic ester (lactone) widely used as a monomer in the production of biodegradable polymers, particularly polycaprolactone (PCL). It is valued for its low toxicity, excellent biocompatibility, and ease of ring-opening polymerization. ε-Caprolactone-derived polymers are used in medical devices, drug delivery systems, tissue engineering scaffolds, and environmentally friendly packaging. Its reactive lactone ring allows copolymerization with other monomers to tailor mechanical and degradation properties. As a versatile building block in green chemistry and biomedical engineering, ε-caprolactone supports the development of sustainable, high-performance materials for diverse applications.