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Synthetic aroma chemicals

gamma-Hexalactone

Also known as gamma-Caprolactone, 4-Hexanolide, gamma-Hexanolactone

CAS 695-06-7Formula C6H10O2Molar mass 114.14 g/molEC 211-778-8
GHS signal word: Warning. Pictograms: Harmful or irritant 20 suppliers listed
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gamma-Hexalactone chemical structure, C6H10O2, CAS 695-06-7
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
695-06-7
Formula
C6H10O2
Molar mass
114.14 g/mol
EC number
211-778-8
HS code
293220
Category
Synthetic aroma chemicals

What is gamma-Hexalactone?

Plain description, key identifiers and synonyms

Gamma-caprolactone is a gamma-lactone that is oxolan-2-one substituted by an ethyl group at position 5. It has a role as a human blood serum metabolite.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
5-ethyloxolan-2-one
CAS number
695-06-7 CAS number cross-checkedOther or deprecated CAS: 63357-95-9
EC numbers
211-778-8, 804-070-0
Molecular formula
C6H10O2
UNII
J16NAT1G41
MDL number
MFCD00005401
INCI name
GAMMA-CAPROLACTONE
InChIKey
JBFHTYHTHYHCDJ-UHFFFAOYSA-N
InChI
InChI=1S/C6H10O2/c1-2-5-3-4-6(7)8-5/h5H,2-4H2,1H3
SMILES (canonical and isomeric)
CCC1CCC(=O)O1

Synonyms

  • gamma-Caprolactone
  • 4-Hexanolide
  • gamma-Hexanolactone
  • 6-Caprolactone
  • Tonkalide
  • Toukalide
  • 2(3H)-Furanone, 5-ethyldihydro-
  • Hexanolide-1,4
  • Hexan-4-olide
  • 4-Ethyl-4-butanolide
  • gamma-Ethylbutyrolactone
  • 5-Ethyltetrahydro-2-furanone
  • 5-Ethyldihydro-2(3H)-furanone
  • gamma-Ethyl-n-butyrolactone
  • gamma-Lactone
  • 5-Ethyldihydrofuran-2(3H)-one
  • 5-ethyloxolan-2-one
  • 4-Hydroxyhexanoic acid lactone
  • Frutinal
  • (R)-5-Ethyldihydrofuran-2(3H)-one
  • Dihydro-5-ethyl-2(3H)-furanone
  • gamma-Ethyl-gamma-butyrolactone
  • g-Hexalactone
  • Hexanoic acid, gamma-lactone
  • 5-ethyltetrahydrofuran-2-one
Show all 33 synonyms
  • 4-Ethyl-4-hydroxybutanoic acid lactone
  • Hexanoic acid, 4-hydroxy-, gamma-lactone
  • Hexalactone
  • IU-Hexanolactone
  • ??-caprolactone
  • 4-Ethylbutanolide
  • hexa-4-olide
  • 4-Hydroxyhexanoate

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
114.14 g/molcalc.
Exact mass
114.0681 Dacalc.
LogP (octanol/water)
1.1calc.
Topological polar surface area
26.3 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
1calc.
Heavy atoms
8calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.83calc.
Formal charge
0calc.
Stereocentres
1calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=C1CCCO1

O=C1CCCO1

1 ring, 6 atoms, the gamma-Butyrolactone ring system.

1,692 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H319Causes serious eye irritation.
Precautionary statements (4)
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P337 + P317If eye irritation persists: Get medical help.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

gamma-Hexalactone suppliers

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All 20 suppliers
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Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

20 suppliers in 6 countries

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gamma-Hexalactone price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Cosmetic ingredient, INCI name GAMMA-CAPROLACTONE(fragrance, perfuming)

Roles

  • animal metabolite
  • eukaryotic metabolite
  • human blood serum metabolite
  • human metabolite
  • mammalian metabolite
  • metabolite

Functional uses

  • Deodorizer
  • Flavouring and nutrient
  • Fragrance

Cosmetic functions

  • Fragrance
  • Perfuming

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code gamma-Hexalactone is traded under.

HS 2932.20Indicative HS code

Lactones

World exports in 2024
$1.97B
−4.7% vs 2023, imports $2.07B
2019 to 2024
Top exporters
  1. China56.3%
  2. India * partner reported7.4%
  3. Germany7.3%
Top importers
  1. United States14.2%
  2. India * partner reported13.5%
  3. Brazil8.5%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for gamma-Hexalactone is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about gamma-Hexalactone, based on the data on this page

What is gamma-Hexalactone?

Gamma-caprolactone is a gamma-lactone that is oxolan-2-one substituted by an ethyl group at position 5. It has a role as a human blood serum metabolite.

What is the CAS number of gamma-Hexalactone?

The CAS registry number of gamma-Hexalactone is 695-06-7. Other or deprecated CAS numbers: 63357-95-9.

What is the molecular formula and weight of gamma-Hexalactone?

The molecular formula of gamma-Hexalactone is C6H10O2 and its molar mass is 114.14 g/mol.

What is gamma-Hexalactone used for?

Known uses and roles of gamma-Hexalactone include fragrance ingredients in cosmetics and personal care, fragrance ingredients in flavors and fragrances, esters and lactones in flavors and fragrances, animal metabolite, eukaryotic metabolite and 8 more.

Is gamma-Hexalactone hazardous?

gamma-Hexalactone carries the GHS signal word "Warning". Main hazards: causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of gamma-Hexalactone?

gamma-Hexalactone is usually classified under HS code 293220 (Lactones). This is indicative, confirm it with your customs broker before shipping.

Where can I buy gamma-Hexalactone?

CompoundList lists 20 suppliers of gamma-Hexalactone in China, United States, Canada, Switzerland and 2 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy gamma-Hexalactone in India?

1 supplier in India list gamma-Hexalactone on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of gamma-Hexalactone?

Suppliers quote gamma-Hexalactone on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle gamma-Hexalactone

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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