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Synthetic aroma chemicals

5-Hexadecanolide

Also known as n-Hexadecalactone, 2H-Pyran-2-one, tetrahydro-6-undecyl-, 6-undecyloxan-2-one

CAS 7370-44-7Formula C16H30O2Molar mass 254.41 g/molEC 230-924-1
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5-Hexadecanolide chemical structure, C16H30O2, CAS 7370-44-7
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
7370-44-7
Formula
C16H30O2
Molar mass
254.41 g/mol
EC number
230-924-1
HS code
293220
Category
Synthetic aroma chemicals

What is 5-Hexadecanolide?

Plain description, key identifiers and synonyms

Delta-hexadecalactone is a delta-lactone.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
6-undecyloxan-2-one
CAS number
7370-44-7 CAS number cross-checked
EC number
230-924-1
Molecular formula
C16H30O2
UNII
VC86OQ26NU
MDL number
MFCD00083573
INCI name
HEXADECALACTONE
InChIKey
ZMJKQSSFLIFELJ-UHFFFAOYSA-N
InChI
InChI=1S/C16H30O2/c1-2-3-4-5-6-7-8-9-10-12-15-13-11-14-16(17)18-15/h15H,2-14H2,1H3
SMILES (canonical and isomeric)
CCCCCCCCCCCC1CCCC(=O)O1

Synonyms

  • n-Hexadecalactone
  • 2H-Pyran-2-one, tetrahydro-6-undecyl-
  • 6-undecyloxan-2-one
  • Tetrahydro-6-undecyl-2H-pyran-2-one
  • Hexadecalactone
  • 2H-Pyran-2-one,tetrahydro-6-undecyl-
  • 6-undecyltetrahydro-2h-pyran-2-one
  • delta-hexadecalactone
  • 6-Undecyltetrahydropyran-2-one
  • Delta-palmitolactone
  • delta-hexadecanolide
  • 5-Hydroxyhexadecanoic acid delta lactone
  • 5-Hydroxyhexadecanoic acid delta lactone 6-undecyltetrahydro-2H-pyran-2-one

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
254.41 g/molcalc.
Exact mass
254.2246 Dacalc.
LogP (octanol/water)
5calc.
Topological polar surface area
26.3 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
10calc.
Heavy atoms
18calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.94calc.
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.

5-Hexadecanolide suppliers

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5-Hexadecanolide price

Indicative price range per kg from live supplier offers

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Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Cosmetic ingredient, INCI name HEXADECALACTONE(perfuming)

Functional uses

  • Flavouring and nutrient
  • Fragrance

Cosmetic functions

  • Perfuming

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 5-Hexadecanolide 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 5-Hexadecanolide is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 5-Hexadecanolide, based on the data on this page

What is 5-Hexadecanolide?

Delta-hexadecalactone is a delta-lactone.

What is the CAS number of 5-Hexadecanolide?

The CAS registry number of 5-Hexadecanolide is 7370-44-7.

What is the molecular formula and weight of 5-Hexadecanolide?

The molecular formula of 5-Hexadecanolide is C16H30O2 and its molar mass is 254.41 g/mol.

What is 5-Hexadecanolide used for?

Known uses and roles of 5-Hexadecanolide include fragrance ingredients in cosmetics and personal care, fragrance ingredients in flavors and fragrances, esters and lactones in flavors and fragrances, perfuming, flavouring and nutrient and 1 more.

Is 5-Hexadecanolide hazardous?

No GHS hazard classification for 5-Hexadecanolide 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 5-Hexadecanolide?

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

Where can I buy 5-Hexadecanolide?

Post a free request on CompoundList and suppliers of 5-Hexadecanolide will send you quotes. Your contact details stay private until you accept a quote.

What is the price of 5-Hexadecanolide?

Suppliers quote 5-Hexadecanolide 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 5-Hexadecanolide

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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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