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Cinnamaldehyde

Also known as Zimtaldehyde, Cinnamal, 3-Phenylacrylaldehyde

CAS 104-55-2Formula C9H8OMolar mass 132.16 g/molEC 203-213-9
GHS signal word: Warning. Pictograms: Harmful or irritant 155 suppliers listed
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Cinnamaldehyde chemical structure, C9H8O, CAS 104-55-2
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Yellowish oily liquid
Melting point
-7.5 °C
Boiling point
253 °C
Density
1.048-1.052 at 25 °C/25 °C
Flash point
120 °C
HS code
291229
Category
Flavor ingredients
Illustrative photo, jerry cans of golden oil in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Cinnamaldehyde?

Plain description, key identifiers and synonyms

(E)-cinnamaldehyde is the E (trans) stereoisomer of cinnamaldehyde, the parent of the class of cinnamaldehydes. It has a role as a sensitiser, a hypoglycemic agent, a flavouring agent, a vasodilator agent, an antifungal agent, an EC 4.3.1.24 (phenylalanine ammonia-lyase) inhibitor and a plant metabolite. It is a 3-phenylprop-2-enal and a member of cinnamaldehydes.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(E)-3-phenylprop-2-enal
CAS number
104-55-2Other or deprecated CAS: 14371-10-9, 57194-69-1
EC numbers
203-213-9, 604-377-8, 805-158-1, 946-230-3
Molecular formula
C9H8O
UNII
SR60A3XG0F
MDL number
MFCD00007000
INCI name
CINNAMAL
InChIKey
KJPRLNWUNMBNBZ-QPJJXVBHSA-N
InChI
InChI=1S/C9H8O/c10-8-4-7-9-5-2-1-3-6-9/h1-8H/b7-4+
Canonical SMILES
O=CC=Cc1ccccc1
Isomeric SMILES
C1=CC=C(C=C1)/C=C/C=O

Synonyms

  • Zimtaldehyde
  • Cinnamal
  • 3-Phenylacrylaldehyde
  • 2-Propenal, 3-phenyl-
  • Phenylacrolein
  • 3-Phenylpropenal
  • 3-Phenyl-2-propenal
  • (E)-3-phenylprop-2-enal
  • Cassia aldehyde
  • Cinnamylaldehyde
  • 3-Phenylacrolein
  • (E)-3-Phenyl-2-propenal
  • Cinnemaldehyde
  • Cinnamyl aldehyde
  • Abion CA
  • Benzylideneacetaldehyde
  • beta-Phenylcrolein
  • 3-Fenylpropenal
  • 3-Phenyl-2-propenaldehyde
  • 3-Phenyl-2-propen-1-al
  • Acrolein, 3-phenyl-
  • Aldehyd skoricovy
  • Hefty Dog and Cat Repellent
  • (3E)-3-phenylprop-2-enal
  • (E)-3-Phenyl-propenal
Show all 38 synonyms
  • beta-phenylacrolein
  • cinnamic aldehyde, (E)-
  • trans-3-phenylprop-2-enaldehyde
  • 3-phenylprop-2-enaldehyde
  • trans-Cinnamaldehyde
  • Cinnamic aldehyde
  • (E)-Cinnamaldehyde
  • (2E)-3-phenylprop-2-enal
  • trans-Cinnamic aldehyde
  • (E)-3-Phenylpropenal
  • 2-propenal, 3-phenyl-, (2E)-
  • trans-Cinnamylaldehyde
  • Cinnamaldehyde, (E)-

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
Yellowish oily liquidexp.
Odour
PUNGENT, SPICY NOTEexp.
Taste
BURNING TASTEexp.
Melting point
-7.5 °Cexp.
Boiling point
253 °Cexp.
Density
1.048-1.052 at 25 °C/25 °Cexp.
Flash point
120 °Cexp.
Solubility
Dissolves in about 700 parts water, in about 7 volumes of 60% alcohol.exp.
Vapour pressure
2.89 × 10⁻² mm Hg at 25 °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
132.16 g/molcalc.
Exact mass
132.0575 Dacalc.
LogP (octanol/water)
1.9calc.
Topological polar surface area
17.07 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
2calc.
Heavy atoms
10calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0calc.
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, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 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

  • H317May cause an allergic skin reaction.
Precautionary statements (8)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P272Contaminated work clothing should not be allowed out of the workplace.
  • 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).
  • P333 + P317If skin irritation or rash 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

Cinnamaldehyde suppliers

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All 155 suppliers
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Where suppliers are based

155 suppliers in 21 countries

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Cinnamaldehyde 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

In electroplating processes, cinnamaldehyde is utilized as a brightener. Other applications include its efficacy as an animal repellent, its use in compositions to attract insects, and demonstration of a positive antifungal activity.

In the flavor and perfume industry.

Food chem to impart cinnamon flavor to foods, beverages, perfume chem, food chem, filtering agent, cinnamon flavoring agent in medicinals, liquors & cordials, rubber reinforcing agent.

Industrial uses: Processing aids, specific to petroleum production, Soil amendments (fertilizers), Fixing agent (mordant), Fragrance, Flavoring and nutrient, Solvent.

Consumer uses: Flavoring and nutrient, Soil amendments (fertilizers), Fragrance, Processing aids, specific to petroleum production.

Use classes: Cosmetics.

Cosmetic ingredient, INCI name CINNAMAL(denaturant, perfuming, flavouring)

Pharmacological actions

  • Antimutagenic Agents
  • Antineoplastic Agents, Phytogenic
  • Flavoring Agents

Roles

  • additive
  • aetiopathogenetic role
  • antifungal agent
  • antimicrobial agent
  • cardiovascular drug
  • enzyme inhibitor
  • eukaryotic metabolite
  • flavouring agent
  • food additive
  • food component
  • hypoglycemic agent
  • metabolite
  • pharmaceutical
  • physiological role
  • plant metabolite
  • sensitiser
  • vasodilator agent

Functional uses

  • Deodorizer
  • Flavouring and nutrient
  • Fragrance

Cosmetic functions

  • Denaturant
  • Flavouring
  • Perfuming

Pharmacology

Cinnamaldehyde is a Standardized Chemical Allergen. The physiologic effect of cinnamaldehyde is by means of Increased Histamine Release and Cell-mediated Immunity.

How it is made

For the synthesis, only the base-catalyzed condensation of benzaldehyde with acetaldehyde has been adopted on an industrial scale.

Cinnamaldehyde has been efficiently isolated in high purity by fractional distillation from cassia and cinnamon bark essential oils.

Preparation by condensation of benzaldehyde and acetaldehyde.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 606-155-00-6[1]

Health and food

  • EU cosmetic ingredient inventory
  • EU Cosmetics Regulation Annex III, restricted in cosmetics
    Name: Cinnamal, Ref no: 76, Annex ref: III/76

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 Cinnamaldehyde is traded under.

HS 2912.29Indicative HS code

Cyclic aldehydes without other oxygen function, other

World exports in 2024
$435M
+19.0% vs 2023, imports $484M
2019 to 2024
Top exporters
  1. China19.5%
  2. Japan17.4%
  3. India * partner reported13.0%
Top importers
  1. United States22.5%
  2. China9.2%
  3. Singapore8.4%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Cinnamaldehyde?

(E)-cinnamaldehyde is the E (trans) stereoisomer of cinnamaldehyde, the parent of the class of cinnamaldehydes. It has a role as a sensitiser, a hypoglycemic agent, a flavouring agent, a vasodilator agent, an antifungal agent, an EC 4.3.1.24 (phenylalanine ammonia-lyase) inhibitor and a plant metabolite.

What is the CAS number of Cinnamaldehyde?

The CAS registry number of Cinnamaldehyde is 104-55-2. Other or deprecated CAS numbers: 14371-10-9, 57194-69-1.

What is the molecular formula and weight of Cinnamaldehyde?

The molecular formula of Cinnamaldehyde is C9H8O and its molar mass is 132.16 g/mol.

What is Cinnamaldehyde used for?

In electroplating processes, cinnamaldehyde is utilized as a brightener. Other applications include its efficacy as an animal repellent, its use in compositions to attract insects, and demonstration of a positive antifungal activity. In the flavor and perfume industry.

Is Cinnamaldehyde hazardous?

Cinnamaldehyde carries the GHS signal word "Warning". Main hazards: may cause an allergic skin reaction. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Cinnamaldehyde?

Cinnamaldehyde is usually classified under HS code 291229 (Cyclic aldehydes without other oxygen function, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Cinnamaldehyde?

CompoundList lists 155 suppliers of Cinnamaldehyde in China, United States, India, Germany and 17 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Cinnamaldehyde in India?

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

What is the price of Cinnamaldehyde?

Suppliers quote Cinnamaldehyde 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 Cinnamaldehyde

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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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