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Insecticides and acaricides

Hexanal

Also known as Caproaldehyde, Hexaldehyde, Caproic aldehyde

CAS 66-25-1Formula C6H12OMolar mass 100.16 g/molEC 200-624-5
GHS signal word: Warning. Pictograms: Flammable, Harmful or irritant 54 suppliers listed
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Hexanal chemical structure, C6H12O, CAS 66-25-1
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless liquid
Melting point
-58.2 °C
Boiling point
129.6 °C
Density
0.8335 g/cm³ at 20 °C
Flash point
25 °C
HS code
291219
Category
Insecticides and acaricides
UN number
UN 1207
Illustrative photo, 25 litre white jerry cans of liquid in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Hexanal?

Plain description, key identifiers and synonyms

Hexanal is a saturated fatty aldehyde that is hexane in which one of the terminal methyl group has been mono-oxygenated to form the corresponding aldehyde. It has a role as a human urinary metabolite. It is a n-alkanal, a saturated fatty aldehyde and a medium-chain fatty aldehyde. It derives from a hydride of a hexane.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
hexanal
CAS number
66-25-1 CAS number cross-checkedOther or deprecated CAS: 861259-78-1
EC number
200-624-5
Molecular formula
C6H12O
UNII
9DC2K31JJQ
MDL number
MFCD00007027
INCI name
HEXANAL
InChIKey
JARKCYVAAOWBJS-UHFFFAOYSA-N
InChI
InChI=1S/C6H12O/c1-2-3-4-5-6-7/h6H,2-5H2,1H3
SMILES (canonical and isomeric)
CCCCCC=O

Synonyms

  • Caproaldehyde
  • Hexaldehyde
  • Caproic aldehyde
  • n-Hexanal
  • Capronaldehyde
  • 1-Hexanal
  • n-Caproaldehyde
  • Hexanaldehyde
  • Hexylaldehyde
  • Aldehyde C-6
  • n-Capronaldehyde
  • Hexoic aldehyde
  • n-Caproylaldehyde
  • n-Hexylaldehyde
  • n-Hexaldehyde
  • C6 aldehyde
  • n-Caproic aldehyde
  • Kapronaldehyd
  • E-2-hexanal
  • Hexyl aldehyde
  • hexan-1-al
  • n-C5H11CHO
  • Aldehyde C6, Caproaldehyde, Hexyl aldehyde
  • Aldehyde C6
  • Hexanal (natural)
Show all 33 synonyms
  • capronaidehyde
  • 1-hexanone
  • Aldehydes, C6
  • Hexanal, 98%
  • Caproaldehyde, Hexaldehyde
  • Hexanal, analytical standard
  • n-HEXALDEHYDE, 98%
  • 4-01-00-03296 (Beilstein Handbook Reference)

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

Appearance
Colorless liquidexp.
Odour
Characteristic fruity odor (on dilution)exp.
Taste
Characeteristic fruity taste (on dilution)exp.
Melting point
-58.2 °Cexp.
Boiling point
129.6 °Cexp.
Density
0.8335 g/cm³ at 20 °Cexp.
Flash point
25 °Cexp.
Solubility
In water, 5.64 × 10⁺³ mg/L at 30 °Cexp.
Vapour pressure
10.5 mm Hg at 20 °Cexp.

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
100.16 g/molcalc.
Exact mass
100.0888 Dacalc.
LogP (octanol/water)
1.77calc.
Topological polar surface area
17.07 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
4calc.
Heavy atoms
7calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.83calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS02: Flammable
Flammable
GHS07: Harmful or irritant
Harmful or irritant
321NFPA 704 rating

Hazard statements

  • H226Flammable liquid and vapour.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
Precautionary statements (19)
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P233Keep container tightly closed.
  • P240Ground and bond container and receiving equipment.
  • P241Use explosion-proof electrical, ventilating and lighting equipment.
  • P242Use non-sparking tools.
  • P243Take action to prevent static discharges.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P303 + P361 + P353If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P403 + P235Store in a well-ventilated place. Keep cool.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 1207
Transport hazard class
3
Packing group
III

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

Hexanal suppliers

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

All 54 suppliers
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Where suppliers are based

54 suppliers in 14 countries

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Hexanal 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

Reported uses (ppm):

Table: Reported uses (ppm): (Flavor and Extract Manufacturers' Association, 1994) [Table#1646].

Organic synthesis of plasticizers, rubber chemicals, dyes, synthetic resins, insecticides.

Hexanal is used in fruit flavors and, when highly diluted, in perfumery for obtaining fruity notes.

Industrial uses: Fragrance, Flavoring and nutrient.

Consumer uses: Fragrance.

Cosmetic ingredient, INCI name HEXANAL(fragrance)

Pharmacological actions

  • Antifungal Agents
  • Insecticides

Roles

  • animal metabolite
  • eukaryotic metabolite
  • human metabolite
  • human urinary metabolite
  • mammalian metabolite
  • metabolite

Functional uses

  • Deodorizer
  • Flavouring and nutrient
  • Fragrance

Cosmetic functions

  • Fragrance

How it is made

Prepared by the hydroformylation of 1-pentene.

Prepared from calcium salt of caproic acid and formic acid.

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 Hexanal is traded under.

HS 2912.19Indicative HS code

Acyclic aldehydes without other oxygen function, other

World exports in 2024
$679M
+4.8% vs 2023, imports $743M
2019 to 2024
Top exporters
  1. Germany22.0%
  2. China21.2%
  3. United States18.5%
Top importers
  1. United States13.1%
  2. Germany9.6%
  3. Belgium8.2%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about Hexanal, based on the data on this page

What is Hexanal?

Hexanal is a saturated fatty aldehyde that is hexane in which one of the terminal methyl group has been mono-oxygenated to form the corresponding aldehyde. It has a role as a human urinary metabolite. It is a n-alkanal, a saturated fatty aldehyde and a medium-chain fatty aldehyde. It derives from a hydride of a hexane.

What is the CAS number of Hexanal?

The CAS registry number of Hexanal is 66-25-1. Other or deprecated CAS numbers: 861259-78-1.

What is the molecular formula and weight of Hexanal?

The molecular formula of Hexanal is C6H12O and its molar mass is 100.16 g/mol.

What is Hexanal used for?

Reported uses (ppm): Table: Reported uses (ppm): (Flavor and Extract Manufacturers' Association, 1994) [Table#1646]. Organic synthesis of plasticizers, rubber chemicals, dyes, synthetic resins, insecticides. Hexanal is used in fruit flavors and, when highly diluted, in perfumery for obtaining fruity notes.

Is Hexanal hazardous?

Hexanal carries the GHS signal word "Warning". Main hazards: flammable liquid and vapour, causes skin irritation, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Hexanal?

Hexanal is usually classified under HS code 291219 (Acyclic aldehydes without other oxygen function, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Hexanal?

CompoundList lists 54 suppliers of Hexanal in China, United States, United Kingdom, Japan and 10 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Hexanal in India?

2 suppliers in India list Hexanal on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Hexanal?

Suppliers quote Hexanal 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 Hexanal

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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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