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Synthetic aroma chemicals

Undecanal

Also known as Undecyl aldehyde, Undecanaldehyde, n-Undecanal

CAS 112-44-7Formula C11H22OMolar mass 170.30 g/molEC 203-972-6
GHS signal word: Warning. Pictograms: Harmful or irritant 9 suppliers listed
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Undecanal chemical structure, C11H22O, CAS 112-44-7
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
112-44-7
Formula
C11H22O
Molar mass
170.30 g/mol
Physical form
Liquid
HS code
291219
Category
Synthetic aroma chemicals
Illustrative photo, assorted laboratory chemical bottles and jars on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Undecanal?

Plain description, key identifiers and synonyms

Undecanal is a saturated fatty aldehyde formally arising from reduction of the carboxylic acid group of undecanoic acid. It is a component of essential oils from citrus plants like Citrus reticulata. It has a role as a volatile oil component, an antimycobacterial drug and a plant metabolite. It is a n-alkanal, a saturated fatty aldehyde and a medium-chain fatty aldehyde. It is a tautomer of an undec-1-en-1-ol.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
undecanal
CAS number
112-44-7 CAS number cross-checked
EC number
203-972-6
Molecular formula
C11H22O
UNII
B6P0A9PSHN
MDL number
MFCD00007016
INCI name
UNDECANAL
InChIKey
KMPQYAYAQWNLME-UHFFFAOYSA-N
InChI
InChI=1S/C11H22O/c1-2-3-4-5-6-7-8-9-10-11-12/h11H,2-10H2,1H3
SMILES (canonical and isomeric)
CCCCCCCCCCC=O

Synonyms

  • Undecyl aldehyde
  • Undecanaldehyde
  • n-Undecanal
  • Undecylic aldehyde
  • 1-Undecanal
  • Hendecanal
  • Hendecanaldehyde
  • Undecylaldehyde
  • n-Undecyl aldehyde
  • C11 aldehyde
  • Undecanone, alpha-
  • Aldehyde C-11
  • C-11 aldehyde, undecylic
  • Aldehyde C-11, undecylic
  • Undecanal, 97%
  • Undecanal (aldehyde c-11 undecylic)
  • Undecanal (natural)
  • Undecylic al
  • N-Indecyl aldehyde
  • 1gt4
  • Undecanal, FCC, >=96%
  • Undecanal, analytical standard
  • FAL 11:0
  • Undecyl aldehyde Solution in Acetonitrile, 1000ug/mL

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

Physical form
Liquidexp.

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
170.30 g/molcalc.
Exact mass
170.1671 Dacalc.
LogP (octanol/water)
3.72calc.
Topological polar surface area
17.07 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
9calc.
Heavy atoms
12calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.91calc.
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.
  • H412Harmful to aquatic life with long lasting effects.
Precautionary statements (8)
  • P264Wash skin thoroughly after handling.
  • P273Avoid release to the environment.
  • 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.
  • 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

Undecanal suppliers

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

All 9 suppliers
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Where suppliers are based

9 suppliers in 7 countries

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Undecanal 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

Industrial uses: Intermediate, Fragrance.

Consumer uses: Fragrance.

Cosmetic ingredient, INCI name UNDECANAL(perfuming)

Roles

  • antibacterial agent
  • antibacterial drug
  • antiinfective agent
  • antimicrobial agent
  • antimicrobial drug
  • antimycobacterial drug
  • eukaryotic metabolite
  • metabolite
  • pharmaceutical
  • plant metabolite
  • volatile oil component

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

Frequently asked questions

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

What is Undecanal?

Undecanal is a saturated fatty aldehyde formally arising from reduction of the carboxylic acid group of undecanoic acid. It is a component of essential oils from citrus plants like Citrus reticulata. It has a role as a volatile oil component, an antimycobacterial drug and a plant metabolite.

What is the CAS number of Undecanal?

The CAS registry number of Undecanal is 112-44-7.

What is the molecular formula and weight of Undecanal?

The molecular formula of Undecanal is C11H22O and its molar mass is 170.30 g/mol.

What is Undecanal used for?

Industrial uses: Intermediate, Fragrance. Consumer uses: Fragrance.

Is Undecanal hazardous?

Undecanal carries the GHS signal word "Warning". Main hazards: causes skin irritation, harmful to aquatic life with long lasting effects. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Undecanal?

Undecanal 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 Undecanal?

CompoundList lists 9 suppliers of Undecanal in United States, Switzerland, Egypt, Spain and 3 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Undecanal in India?

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

What is the price of Undecanal?

Suppliers quote Undecanal 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 Undecanal

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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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