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Synthetic aroma chemicals

9-Decenal

Also known as dec-9-enal, 9-decen-1-al, Costenal

CAS 39770-05-3Formula C10H18OMolar mass 154.25 g/molEC 254-624-5
GHS signal word: Warning. Pictograms: Harmful or irritant 1 supplier listed
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9-Decenal chemical structure, C10H18O, CAS 39770-05-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
39770-05-3
Formula
C10H18O
Molar mass
154.25 g/mol
EC number
254-624-5
HS code
291219
Category
Synthetic aroma chemicals

What is 9-Decenal?

Plain description, key identifiers and synonyms

9-Decenal is a chemical substance with the molecular formula C10H18O and a molar mass of 154.25 g/mol. Its CAS registry number is 39770-05-3. The IUPAC name is dec-9-enal.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
dec-9-enal
CAS number
39770-05-3 CAS number cross-checked
EC number
254-624-5
Molecular formula
C10H18O
UNII
8E4C80798Y
INCI name
9-DECENAL
InChIKey
AKMSQWLDTSOVME-UHFFFAOYSA-N
InChI
InChI=1S/C10H18O/c1-2-3-4-5-6-7-8-9-10-11/h2,10H,1,3-9H2
SMILES (canonical and isomeric)
C=CCCCCCCCC=O

Synonyms

  • dec-9-enal
  • 9-decen-1-al
  • Costenal

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
8calc.
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.
Precautionary statements (6)
  • P264Wash skin thoroughly after handling.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: 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

9-Decenal suppliers

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Where suppliers are based

1 supplier in 1 country

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9-Decenal 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 9-DECENAL(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

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 9-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 9-Decenal is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 9-Decenal, based on the data on this page

What is 9-Decenal?

9-Decenal is a chemical substance with the molecular formula C10H18O and a molar mass of 154.25 g/mol. Its CAS registry number is 39770-05-3. The IUPAC name is dec-9-enal.

What is the CAS number of 9-Decenal?

The CAS registry number of 9-Decenal is 39770-05-3.

What is the molecular formula and weight of 9-Decenal?

The molecular formula of 9-Decenal is C10H18O and its molar mass is 154.25 g/mol.

What is 9-Decenal used for?

Known uses and roles of 9-Decenal include fragrance ingredients in cosmetics and personal care, fragrance ingredients in flavors and fragrances, aldehydes and ketones in flavors and fragrances, perfuming, flavouring and nutrient and 1 more.

Is 9-Decenal hazardous?

9-Decenal carries the GHS signal word "Warning". Main hazards: causes skin irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 9-Decenal?

9-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 9-Decenal?

CompoundList lists 1 supplier of 9-Decenal in United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of 9-Decenal?

Suppliers quote 9-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 9-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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