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ε-Caprolactone

ε-Caprolactone structure

CAS No.: 502-44-3

Chemical Name:: ε-Caprolactone

Synonyms: CAPROLACTONE;2-OXEPANONE;oxepan-2-one;Oxepanone;EPSILON-CAPROLACTONE;E-CAPROLACTONE;6-HEXANOLACTONE;Polycaprolactone Polyol;6-CAPROLACTONE;6-Hydroxyhexan-6-olide

CBNumber:: CB1362738

Molecular Formula:: C6H10O2

Molecular Weight:: 114.14

MDL Number:: MFCD00003267

MOL File:: 502-44-3.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-05-27 23:33:57

Product description	Number	Pack Size	Price
ω-Caprolactone 97%	704067	100g	$47.1
ε-Caprolactone for synthesis	8.02801	250ML	$65.9
ω-Caprolactone 97%	704067	500g	$155
epsilon-Caprolactone >99.0%(GC)	C0702	25mL	$17
epsilon-Caprolactone >99.0%(GC)	C0702	500mL	$37
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ε-Caprolactone Properties

Melting point	-1 °C
Boiling point	96-97.5 °C10 mm Hg(lit.)
Density	1.03 g/mL at 25 °C(lit.)
vapor density	3.9 (vs air)
vapor pressure	0.01 mm Hg ( 20 °C)
refractive index	n20/D 1.463(lit.)
Flash point	229 °F
storage temp.	Store below +30°C.
solubility	Chloroform, Ethyl Acetate
form	Liquid
color	Clear colorless, yellowing on aging
explosive limit	1.2-9%(V)
Water Solubility	>1000 MG/L (20 ºC)
BRN	106919
Henry's Law Constant	5.5×10^-2 mol/(m³Pa) at 25℃, HSDB (2015)
InChI	1S/C6H10O2/c7-6-4-2-1-3-5-8-6/h1-5H2
InChIKey	PAPBSGBWRJIAAV-UHFFFAOYSA-N
SMILES	O=C1CCCCCO1
LogP	0.32 at 20℃
CAS DataBase Reference	502-44-3(CAS DataBase Reference)
EWG's Food Scores	1
FDA UNII	56RE988L1R
NIST Chemistry Reference	2-Oxepanone(502-44-3)
EPA Substance Registry System	2-Oxepanone (502-44-3)
UNSPSC Code	12352115
NACRES	NA.23

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H319

Precautionary statements

P264-P280-P305+P351+P338-P337+P313

PPE

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

Hazard Codes

Risk Statements

37/38-41-36/38

Safety Statements

26-39-37/39

WGK Germany

RTECS

MO8400000

Autoignition Temperature

204 °C

TSCA

TSCA listed

HS Code

29322090

Storage Class

10 - Combustible liquids

Hazard Classifications

Eye Irrit. 2

Hazardous Substances Data

502-44-3(Hazardous Substances Data)

Toxicity

LD50 orally in Rabbit: > 2000 mg/kg LD50 dermal Rabbit 5990 mg/kg

REACH Registrations

Active

NFPA 704

	1
2		0

ε-Caprolactone price More Price(69)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	704067	ω-Caprolactone 97%	502-44-3	100g	$47.1	2026-04-30	Buy
Sigma-Aldrich	8.02801	ε-Caprolactone for synthesis	502-44-3	250ML	$65.9	2026-04-30	Buy
Sigma-Aldrich	704067	ω-Caprolactone 97%	502-44-3	500g	$155	2026-04-30	Buy
TCI Chemical	C0702	epsilon-Caprolactone >99.0%(GC)	502-44-3	25mL	$17	2026-04-30	Buy
TCI Chemical	C0702	epsilon-Caprolactone >99.0%(GC)	502-44-3	500mL	$37	2026-04-30	Buy

Product number	Packaging	Price	Buy
704067	100g	$47.1	Buy
8.02801	250ML	$65.9	Buy
704067	500g	$155	Buy
C0702	25mL	$17	Buy
C0702	500mL	$37	Buy

ε-Caprolactone Chemical Properties,Uses,Production

Chemical Properties

Clear colorless liquid, yellowing on ageing

Uses

Intermediate in adhesives, urethane coatings, and elastomers; solvent; diluent for epoxy resins; synthetic fibers; organic synthesis.

Uses

ε-Caprolactone is widely used as a monomer in the manufacturing of highly specialized polymers. It is mainly utilized as a precursor to caprolactam. It finds an application in the synthesis of polyglecaprone, which is used as a suture material in surgery.

Uses

ε-caprolactone is popularly used in the preparation of poly caprolactone (PCL).

Definition

ChEBI: A epsilon-lactone that is oxepane substituted by an oxo group at position 2.

Synthesis Reference(s)

Journal of the American Chemical Society, 80, p. 4079, 1958 DOI: 10.1021/ja01548a063
The Journal of Organic Chemistry, 61, p. 4560, 1996 DOI: 10.1021/jo952237x
Tetrahedron Letters, 17, p. 2455, 1976 DOI: 10.1016/0040-4039(76)90018-6

General Description

ε-caprolactone is a cyclic ester. Ring opening polymerization of ε-caprolactone initiated by, tributylin n butoxide, ethyl magnesium bromide, or samarium acetate or heteropolyacid, leads to the formation of poly caprolactone (PCL).

Flammability and Explosibility

Not classified

ε-Caprolactone synthesis

Synthesis of ε-Caprolactone from Peroxyacetic acid and Cyclohexanone

ε-Caprolactone Preparation Products And Raw materials

Raw materials

Peroxyacetic acid Ozone Cyclohexanone Dicyclohexanone Diperoxide 6-HYDROXYCAPROIC ACID

Preparation Products

(5-Carboxypentyl)(triphenyl)phosphonium bromide tert-Butyl 6-Hydroxyhexanoate 6-CHLOROHEXANOYL CHLORIDE ADIPIC SEMIALDEHYDE METHYL ESTER 8-fluoro-3-methyl-octanoic acid

ε-Caprolactone Suppliers

Global( 442)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418684 +8618949823763	sales@tnjchem.com	China	25356	58
Hangzhou Benoy Chemical Co., Ltd	+8617342059697	sales@benoychem.com	China	315	58
BOC Sciences	+1-631-485-4226	inquiry@bocsci.com	United States	19936	58
Hebei Chuanghai Biotechnology Co., Ltd	+8615350571055	Sibel@chuanghaibio.com	China	8738	58
Hebei Chuanghai Biotechnology Co,.LTD	+86-86-13131129325 +8613131129325	sales1@chuanghaibio.com	China	5220	58
Hebei Chuanghai Biotechnology Co., Ltd	+8615531151365	mina@chuanghaibio.com	China	18126	58
Henan Fengda Chemical Co., Ltd	+86-371-86557731 +86-13613820652	info@fdachem.com	China	20120	58
Shandong Deshang Chemical Co., Ltd.	+86-0531-8875-2665 +8613153039501	info@deshangchem.com	China	661	58
Hebei Zhuanglai Chemical Trading Co Ltd	+86-16264648883	niki@zlchemi.com	China	7245	58
Capot Chemical Co.,Ltd.	+86-（0）57185586718 +86-13336195806	sales@capot.com	China	29640	60

Supplier	Advantage
Hefei TNJ Chemical Industry Co.,Ltd.	58
Hangzhou Benoy Chemical Co., Ltd	58
BOC Sciences	58
Hebei Chuanghai Biotechnology Co., Ltd	58
Hebei Chuanghai Biotechnology Co,.LTD	58
Hebei Chuanghai Biotechnology Co., Ltd	58
Henan Fengda Chemical Co., Ltd	58
Shandong Deshang Chemical Co., Ltd.	58
Hebei Zhuanglai Chemical Trading Co Ltd	58
Capot Chemical Co.,Ltd.	60

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View Lastest Price from ε-Caprolactone manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-07-09	ε-Caprolactone 502-44-3	$1.40-35.00	1kg	99%		Henan Fengda Chemical Co., Ltd
2026-05-28	6-Hexanolactone 502-44-3	$10.70	10kg	99%	10000kg	Hebei Chuanghai Biotechnology Co,.LTD
2026-03-20	6-Hexanolactone 502-44-3	$10.00	1KG	99%	10 mt	Hebei Chuanghai Biotechnology Co., Ltd

ε-Caprolactone
502-44-3
$1.40-35.00
99%
Henan Fengda Chemical Co., Ltd

6-Hexanolactone
502-44-3
$10.70
99%
Hebei Chuanghai Biotechnology Co,.LTD

6-Hexanolactone
502-44-3
$10.00
99%
Hebei Chuanghai Biotechnology Co., Ltd

ε-Caprolactone Spectrum

ε-Caprolactone(502-44-3)MS ε-Caprolactone(502-44-3)¹³CNMR ε-Caprolactone(502-44-3)IR1 ε-Caprolactone(502-44-3)IR2 ε-Caprolactone(502-44-3)IR3 ε-Caprolactone(502-44-3)IR

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1of4

2-oxo-hexamethyleneoxid 5-Caprolactone 6-Caprolactone monomer 6-Hexanalactone 6-Hexanolacetone 6-Hydroxyhexanoic acid lactone 6-hydroxyhexanoicacidlactone 6-hydroxy-hexanoicaciepsilon-lactone 6-hydroxy-hexanoicacilactone epsilon-Kaprolakton 24,25-Dihydroxy Fusidic Acid &epsilon epsilon-Hexalactone epsilon-Hexanolactone Epsilon-CaprolaCLone MonoMer E-CAPROLACTONE FOR SYNTHESIS 1,6-Hexanolide 1-Oxa-2-oxocycloheptane 2-Oxacycloheptanone Hexanoic acid, epsilon-lactone hexanoicacid,epsilon-lactone Placcel M placcelm epsilon-Caprolactone MonoMer, 99% 1KG epsilon-Caprolactone MonoMer, 99% 250GR epsilon-kaprolakton(czech) Hexamethylene oxide, 2-oxo- Hexan-6-olide Hexanoic acid, 6-hydroxy-, epsilon-lactone Hexanoic acid, 6-hydroxy-, lactone &epsi:-Caprolactone monomer hexano-6-lactone ε-Caprolactone 〔6-Hexanolide〕 ε-CaproL 6-Hexanolactone~2-Oxepanone 6-HEXANOLIDE 6-HYDROXYCAPROIC ACID LACTONE EPSILON-HEXALACTONE EPSILON-HEXANOLACTONE gama-Caprolactone gama-Hexalactone EPSILON-CAPROLACTONE, 99+% E-CAPROLACTONE MONOMER epsilon-Caprolactone monomer, 99+% EPSILON-HEXANOICLACTONE 1-isocyanato-4-[(4-isocyanatocyclohexyl)methyl]cyclohexane 2-Oxepanone, 6-Caprolactone monomer, 6-Hexanolactone 6-Caprolactone monomer ,98.5% ε-Caprolactone> E-CAPROLACTONE FOR SYNTHESIS 250 ML ε-Caprolactone Product name molecular formula Cas number 6-Hexanolactone C6H10O2 ε-Caprolactone USP/EP/BP E - the cheese ε-Caprolactone,6-Hexanolactone 2-Oxepanone hexan-6-olide ε-Caprolactone 5-Caprolactone 6-Hexanolactone 6-Hexanalactone 6-Hexanolacetone L-61049 ε-Caprolactone, CAS 502-44-3 ε-Caprolactone 99% ε-Caprolactone，Epsilon-Caprolactone monomer

ε-Caprolactone

ε-Caprolactone Properties

SAFETY

Risk and Safety Statements

ε-Caprolactone price More Price(69)

ε-Caprolactone Chemical Properties,Uses,Production

Chemical Properties

Uses

Uses

Uses

Definition

Synthesis Reference(s)

General Description

Flammability and Explosibility

ε-Caprolactone synthesis

ε-Caprolactone Preparation Products And Raw materials

Raw materials

Preparation Products

ε-Caprolactone Suppliers

Related articles

View Lastest Price from ε-Caprolactone manufacturers

ε-Caprolactone Spectrum

502-44-3(ε-Caprolactone)Related Search: