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Synthetic aroma chemicals

(2E)-Decenal

Also known as trans-2-Decenal, (E)-Dec-2-enal, 2-Decenal

CAS 3913-81-3Formula C10H18OMolar mass 154.25 g/molEC 223-472-1
GHS signal word: Warning. Pictograms: Harmful or irritant 7 suppliers listed
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(2E)-Decenal chemical structure, C10H18O, CAS 3913-81-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
3913-81-3
Formula
C10H18O
Molar mass
154.25 g/mol
EC number
223-472-1
HS code
291219
Category
Synthetic aroma chemicals

What is (2E)-Decenal?

Plain description, key identifiers and synonyms

(2E)-dec-2-enal is a dec-2-enal in which the olefinic double bond has E configuration. It has a role as a mutagen, a nematicide and an alarm pheromone.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(E)-dec-2-enal
CAS number
3913-81-3 CAS number cross-checkedOther or deprecated CAS: 25447-70-5, 3913-71-1
EC numbers
223-472-1, 223-474-2
Molecular formula
C10H18O
UNII
E93S23U2BU
MDL number
MFCD00014679
INCI name
2-DECENAL, TRANS-2-DECENAL
InChIKey
MMFCJPPRCYDLLZ-CMDGGOBGSA-N
InChI
InChI=1S/C10H18O/c1-2-3-4-5-6-7-8-9-10-11/h8-10H,2-7H2,1H3/b9-8+
Canonical SMILES
CCCCCCCC=CC=O
Isomeric SMILES
CCCCCCC/C=C/C=O

Synonyms

  • trans-2-Decenal
  • (E)-Dec-2-enal
  • 2-Decenal
  • decenal
  • (E)-2-Decenal
  • (2E)-2-Decenal
  • 3-Heptylacrolein
  • 2-Decenal, (2E)-
  • Decenaldehyde
  • 2-Decenal, (E)-
  • 2-Decen-1-al
  • Decylenic aldehyde
  • trans-Dec-2-enal
  • (2E)-dec-2-enal
  • TRANS-2-DECEN-1-AL
  • 2(e)-decenal
  • dec-(e)-2-enal
  • Dec-2(E)-enal
  • (E)-trans-2-decenal
  • Dec-2-enal, (E)
  • trans-2-Decenyl Aldehyde
  • (2E)-2-Decenal #
  • t-2-DCA
  • (E)-dec-2-en-1-al
  • Decenaldehyde, trans-
Show all 29 synonyms
  • trans-2-Decenal, analytical standard
  • trans-2-Decenal, >=95.0% (GC)
  • trans-2-Decenal, >=95%, FCC, FG
  • trans-2-Decenal (contains trans-2-Decenal Diethyl Acetal)

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
154.25 g/molcalc.
Exact mass
154.1358 Dacalc.
LogP (octanol/water)
3.1calc.
Topological polar surface area
17.07 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
7calc.
Heavy atoms
11calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.7calc.
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
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
Precautionary statements (9)
  • 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.
  • 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.

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

(2E)-Decenal suppliers

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All 7 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

7 suppliers in 3 countries

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(2E)-Decenal 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

Use classes: Cosmetics.

Cosmetic ingredient, INCI name TRANS-2-DECENAL(perfuming)

Roles

  • aetiopathogenetic role
  • alarm pheromone
  • genotoxin
  • molecular messenger
  • mutagen
  • nematicide
  • pesticide
  • pheromone
  • semiochemical

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

United States

  • TSCA inventory (USA)
    Status: Active in US commerce, Regulatory flags: Added by a premanufacture notice

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code (2E)-Decenal 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 (2E)-Decenal is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about (2E)-Decenal, based on the data on this page

What is (2E)-Decenal?

(2E)-dec-2-enal is a dec-2-enal in which the olefinic double bond has E configuration. It has a role as a mutagen, a nematicide and an alarm pheromone.

What is the CAS number of (2E)-Decenal?

The CAS registry number of (2E)-Decenal is 3913-81-3. Other or deprecated CAS numbers: 25447-70-5, 3913-71-1.

What is the molecular formula and weight of (2E)-Decenal?

The molecular formula of (2E)-Decenal is C10H18O and its molar mass is 154.25 g/mol.

What is (2E)-Decenal used for?

Use classes: Cosmetics.

Is (2E)-Decenal hazardous?

(2E)-Decenal carries the GHS signal word "Warning". Main hazards: 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 (2E)-Decenal?

(2E)-Decenal 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 (2E)-Decenal?

CompoundList lists 7 suppliers of (2E)-Decenal in China, United States and India. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy (2E)-Decenal in India?

1 supplier in India list (2E)-Decenal on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of (2E)-Decenal?

Suppliers quote (2E)-Decenal 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 (2E)-Decenal

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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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