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Synthetic aroma chemicals

delta-Decalactone

Also known as 6-Pentyltetrahydro-2H-pyran-2-one, 5-Decanolide, 6-pentyloxan-2-one

CAS 705-86-2Formula C10H18O2Molar mass 170.25 g/molEC 211-889-1
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delta-Decalactone chemical structure, C10H18O2, CAS 705-86-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
705-86-2
Formula
C10H18O2
Molar mass
170.25 g/mol
Physical form
Liquid
HS code
293220
Category
Synthetic aroma chemicals
Illustrative photo, closed blue steel drums of liquid in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is delta-Decalactone?

Plain description, key identifiers and synonyms

6-pentyloxan-2-one is a delta-lactone that is 5-valerolactone substituted by a pentyl group at position 6. It has a role as a metabolite. It is functionally related to a 5-valerolactone.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
6-pentyloxan-2-one
CAS number
705-86-2 CAS number cross-checked
EC number
211-889-1
Molecular formula
C10H18O2
UNII
CNA0S5T234
MDL number
MFCD00006649
INCI name
DELTA-DECALACTONE
InChIKey
GHBSPIPJMLAMEP-UHFFFAOYSA-N
InChI
InChI=1S/C10H18O2/c1-2-3-4-6-9-7-5-8-10(11)12-9/h9H,2-8H2,1H3
SMILES (canonical and isomeric)
CCCCCC1CCCC(=O)O1

Synonyms

  • 6-Pentyltetrahydro-2H-pyran-2-one
  • 5-Decanolide
  • 6-pentyloxan-2-one
  • delta-Decanolactone
  • 2H-Pyran-2-one, tetrahydro-6-pentyl-
  • 5-Decalactone
  • Decan-5-olide
  • delta-Decalactone (natural)
  • Tetrahydro-6-pentyl-2H-pyran-2-one
  • delta-Pentyl-delta-valerolactone
  • 5-Amyl-5-hydroxypentanoic acid lactone
  • delta-lactone-
  • delta-Decanolide
  • 6-pentylvalerolactone
  • Tetrahydro-6-pentylpyran-2-one
  • (rs)-delta-decalactone
  • Decalactone delta
  • 5-17-09-00090 (Beilstein Handbook Reference)
  • Capric acid, delta-hydroxy-, lactone
  • (+-)-delta-Decalactone
  • 5-hydroxy-decanoic acid
  • Decanolide-1,5
  • 5-Pentyl-5-pentanolide
  • d-decalactone
  • 5-Hydroxydecanoic acid delta-lactone
Show all 26 synonyms
  • 5-Hydroxydecanoic acid lactone

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

Physical form
Liquidexp.

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
170.25 g/molcalc.
Exact mass
170.1307 Dacalc.
LogP (octanol/water)
2.66calc.
Topological polar surface area
26.3 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
4calc.
Heavy atoms
12calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.9calc.
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=C1CCCCO1

O=C1CCCCO1

1 ring, 7 atoms, the delta-Valerolactone ring system.

353 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

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

delta-Decalactone suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 41 suppliers
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Where suppliers are based

41 suppliers in 9 countries

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delta-Decalactone 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

Industrial uses: Fragrance.

Consumer uses: Fragrance.

Use classes: Cosmetics.

Cosmetic ingredient, INCI name DELTA-DECALACTONE(fragrance, perfuming)

Roles

  • 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 delta-Decalactone 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 delta-Decalactone is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about delta-Decalactone, based on the data on this page

What is delta-Decalactone?

6-pentyloxan-2-one is a delta-lactone that is 5-valerolactone substituted by a pentyl group at position 6. It has a role as a metabolite. It is functionally related to a 5-valerolactone.

What is the CAS number of delta-Decalactone?

The CAS registry number of delta-Decalactone is 705-86-2.

What is the molecular formula and weight of delta-Decalactone?

The molecular formula of delta-Decalactone is C10H18O2 and its molar mass is 170.25 g/mol.

What is delta-Decalactone used for?

Industrial uses: Fragrance. Consumer uses: Fragrance. Use classes: Cosmetics.

Is delta-Decalactone hazardous?

No GHS hazard classification for delta-Decalactone is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of delta-Decalactone?

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

Where can I buy delta-Decalactone?

CompoundList lists 41 suppliers of delta-Decalactone in China, India, United States, Japan and 5 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy delta-Decalactone in India?

7 suppliers in India list delta-Decalactone on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of delta-Decalactone?

Suppliers quote delta-Decalactone 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 delta-Decalactone

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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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