ε-己内酯单体

Description

Epsilon-Caprolactone monomer · CAS 502-44-3 · C6H10O2. UNII 56RE988L1R. Boiling Point: 237 °C; Boiling Point: 215 °C @760 [mm Hg]; Melting Point: -1.5 °C.

Identification

CAS Registry Number	502-44-3
PubChem CID	10401
Molecular formula	C6H10O2
IUPAC name	oxepan-2-one
UNII (FDA)	56RE988L1R

Computed Descriptors

Molecular Weight	114.14
XLogP3	0
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	0
Exact Mass	114.068079557
Monoisotopic Mass	114.068079557
Topological Polar Surface Area	26.3
Heavy Atom Count	8
Formal Charge	0

Physical & Chemical Properties

Boiling Point	237 °C
Boiling Point	215 °C @760 [mm Hg]
Melting Point	-1.5 °C
Melting Point	-1 °C
Flash Point	127 °C o.c.
Density	1.07 g/cm³
Density	1.0761 @ 20°C
Vapor Pressure	0.13 [mmHg]
Vapor Pressure	1.35X10-1 mm Hg at 25 °C
Vapor Pressure	0.01 [mm Hg] @20 °C

Physical description & handling notes

• CBI; Liquid
• Colorless liquid; Miscible in water; [eChemPortal: SIDSUNEP] Colorless liquid; [MSDSonline]
• COLOURLESS HYGROSCOPIC LIQUID WITH CHARACTERISTIC ODOUR.
• Solubility in water: miscible
• Relative density of the vapour/air-mixture at 20 °C (air = 1): 1.00
• Relative vapor density (air = 1): 3.9

Regulatory Status

Regulatory & Food Contact	FDA Cumulative Estimated Daily Intake (CEDI): FCS
GHS notification summary	34.5% (266 / 770)

GHS Hazard Classification

GHS notification summary	34.5% (266 / 770)
Reported hazard statements	H319 (60.1%)

Documented Uses

• Used as a solvent, a diluent for epoxy resins, and an intermediate in adhesives, urethane coatings, and elastomers; [Hawley] Used in the production of polymers (polycaprolactones); [eChemPortal: SIDSUNEP]
• Plastic Composites Manufacturing [Category: Industry]
• INTERMEDIATE IN ADHESIVES, URETHANE COATINGS & ELASTOMERS; SOLVENT; DILUENT FOR EPOXY RESINS; SYNTHETIC FIBERS; IN ORG SYNTHESIS
• REACTION PRODUCT OF PERACETIC ACID & CYCLOHEXANONE; AN INTERMEDIATE PRODUCT IN MFR OF CAPROLACTAM.
• 2023: 10,000,000 - <25,000,000 lb
• 2022: 10,000,000 - <25,000,000 lb

Synonyms

Epsilon-caprolactone; CAPROLACTONE; 502-44-3; 6-Hexanolactone; 2-Oxepanone; hexano-6-lactone; 6-Hexanolide; 1,6-Hexanolide; 1-Oxa-2-oxocycloheptane; Placcel M; 6-Hydroxyhexanoic acid lactone; Hexanoic acid, epsilon-lactone; Hexamethylene oxide, 2-oxo-; epsilon-Kaprolakton; DTXSID4027159; epsilon caprolactone

Frequently Asked Questions

What are the CAS number and molecular formula of Epsilon-Caprolactone monomer?

CAS 502-44-3; molecular formula C6H10O2; molecular weight — g/mol.

What other names is Epsilon-Caprolactone monomer known by?

Epsilon-caprolactone, CAPROLACTONE, 502-44-3, 6-Hexanolactone, 2-Oxepanone, hexano-6-lactone.

What is the regulatory status of Epsilon-Caprolactone monomer?

Documented regulatory listings: FDA Cumulative Estimated Daily Intake (CEDI): FCS.

Is Epsilon-Caprolactone monomer classified as hazardous?

34.5% of GHS notifications report no hazard classification (266 of 770).

What are the key physical properties of Epsilon-Caprolactone monomer?

Boiling Point: 237 °C; Boiling Point: 215 °C @760 [mm Hg]; Melting Point: -1.5 °C; Melting Point: -1 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.