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Synthetic aroma chemicals

Ethyl maltol

Also known as 2-Ethyl-3-hydroxy-4H-pyran-4-one, 2-Ethyl-3-hydroxy-4-pyrone, Ethylmaltol

CAS 4940-11-8Formula C7H8O3Molar mass 140.14 g/molEC 225-582-5
GHS signal word: Warning. Pictograms: Harmful or irritant 71 suppliers listed
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Ethyl maltol chemical structure, C7H8O3, CAS 4940-11-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
4940-11-8
Formula
C7H8O3
Molar mass
140.14 g/mol
EC number
225-582-5
HS code
293299
Category
Synthetic aroma chemicals

What is Ethyl maltol?

Plain description, key identifiers and synonyms

Ethyl maltol is a pyranone.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-ethyl-3-hydroxypyran-4-one
CAS number
4940-11-8 CAS number cross-checked
EC number
225-582-5
Molecular formula
C7H8O3
UNII
L6Q8K29L05
MDL number
MFCD00059795
INCI name
ETHYL HYDROXYPYRONE
InChIKey
YIKYNHJUKRTCJL-UHFFFAOYSA-N
InChI
InChI=1S/C7H8O3/c1-2-6-7(9)5(8)3-4-10-6/h3-4,9H,2H2,1H3
SMILES (canonical and isomeric)
CCC1=C(C(=O)C=CO1)O

Synonyms

  • 2-Ethyl-3-hydroxy-4H-pyran-4-one
  • 2-Ethyl-3-hydroxy-4-pyrone
  • Ethylmaltol
  • Veltol plus
  • 3-Hydroxy-2-ethyl-4-pyrone
  • 2-ethyl-3-hydroxypyran-4-one
  • 2-Ethylpyromeconic acid
  • 4H-Pyran-4-one, 2-ethyl-3-hydroxy-
  • 2-Ethyl pyromeconic acid
  • Ethyl Hydroxypyrone
  • 3-Hydroxy-2-ethyl-4H-pyran-4-one
  • Maltol-ethyl
  • 3-Hydroxy-2-ethyl-1,4-pyrone
  • 2-Ethyl-3-hydroxy-pyran-4-one
  • 3-Hydroxy-2-ethyl-gamma-pyrone
  • Ethyl maltol (Standard)
  • 6-ethyl-3-hydroxy-2-methyl-4H-pyran-4-one
  • INS NO.637
  • Ethyl maltol, analytical standard
  • Ethyl maltol, >=99%, FCC, FG
  • 3-Hydroxy-2-ethyl-4-pyrone11/8/40
  • 2-Ethyl-3-hydroxy-4H-pyran-4-one, 99%
  • 3-Hydroxy-2-ethyl-laquo gammaRaquo -pyrone
  • Ethyl maltol Solution in Methanol, 100ug/mL
  • Ethyl maltol Solution in Methanol, 1000ug/mL
Show all 26 synonyms
  • 2-Ethyl-3-hydroxy-4H-pyran-4-one, Ethyl maltol

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
140.14 g/molcalc.
Exact mass
140.0473 Dacalc.
LogP (octanol/water)
0.91calc.
Topological polar surface area
50.44 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
1calc.
Heavy atoms
10calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.29calc.
Formal charge
0calc.
Stereocentres
0calc.
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=c1ccocc1

O=c1ccocc1

1 ring, 7 atoms, the 4H-Pyran-4-one ring system.

339 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

  • H302Harmful if swallowed.
Precautionary statements (5)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P301 + P317If swallowed: Get medical help.
  • P330Rinse mouth.
  • P501Dispose of contents and container in accordance with local regulations.

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

Ethyl maltol suppliers

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

All 71 suppliers
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Where suppliers are based

71 suppliers in 20 countries

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Ethyl maltol price

Indicative price range per kg from live supplier offers

No published prices right now

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 ETHYL HYDROXYPYRONE(fragrance, perfuming)

Functional uses

  • Deodorizer
  • Dye
  • Flavouring and nutrient
  • Fragrance
  • Processing aids not otherwise specified

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 Ethyl maltol is traded under.

HS 2932.99Indicative HS code

Heterocyclic compounds with oxygen hetero-atom(s) only, other

World exports in 2024
$3.81B
+10.3% vs 2023, imports $7.05B
2019 to 2024
Top exporters
  1. China28.9%
  2. Switzerland * partner reported12.7%
  3. Germany7.8%
Top importers
  1. United States49.7%
  2. China11.9%
  3. India * partner reported3.3%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Ethyl maltol, based on the data on this page

Is Ethyl maltol hazardous?

Ethyl maltol carries the GHS signal word "Warning". Main hazards: harmful if swallowed. This summary is not an SDS, always read the supplier safety data sheet.

Guides for buyers

Practical guides that help when you source, ship or handle Ethyl maltol

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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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