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Herbicides

Acrolein

Also known as Acrylaldehyde, 2-Propenal, prop-2-enal

CAS 107-02-8Formula C3H4OMolar mass 56.06 g/molEC 203-453-4
GHS signal word: Danger. Pictograms: Flammable, Corrosive, Acute toxicity (severe), Hazardous to the environment 66 suppliers listed
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Acrolein chemical structure, C3H4O, CAS 107-02-8
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless or yellowish liquid
Melting point
-87.8 °C
Boiling point
52.3 °C
Density
Relative density (water = 1): 0.8
Flash point
-29 °C
HS code
291219
Category
Herbicides
UN number
UN 1092
Illustrative photo, clear colourless liquid in a glass reagent bottle on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Acrolein?

Plain description, key identifiers and synonyms

Acrolein is an enal that is prop-2-ene with an oxo group at position 1. It has a role as a herbicide, a toxin and a human xenobiotic metabolite.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
prop-2-enal
CAS number
107-02-8 CAS number cross-checked
EC number
203-453-4
Molecular formula
C3H4O
UNII
7864XYD3JJ
MDL number
MFCD00006998
InChIKey
HGINCPLSRVDWNT-UHFFFAOYSA-N
InChI
InChI=1S/C3H4O/c1-2-3-4/h2-3H,1H2
SMILES (canonical and isomeric)
C=CC=O

Synonyms

  • Acrylaldehyde
  • 2-Propenal
  • prop-2-enal
  • Propenal
  • Acrylic aldehyde
  • Aqualin
  • Allyl aldehyde
  • Magnacide H
  • Acraldehyde
  • Ethylene aldehyde
  • Aqualine
  • 2-Propen-1-one
  • Slimicide
  • Crolean
  • Prop-2-en-1-al
  • Magnacide
  • Biocide
  • Acrylaldehyd
  • Acroleina
  • Acroleine
  • Akrolein
  • Akroleina
  • Papite
  • Aldeide acrilica
  • Aldehyde acrylique
Show all 38 synonyms
  • Acraldehydeacroleina
  • trans-Acrolein
  • Magnacide B
  • Rcra waste number P003
  • Aldehyde, Allyl
  • Aldehyde, Acrylic
  • Aldehyde, Ethylene
  • UN 1092
  • 2 Propenal
  • Propenaldehyde
  • Magnacide H and B
  • 2-Propenaldehyde
  • Acrolein (stabilized with hydroquinone)

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 or yellowish liquidexp.
Odour
Extremely sharp, extremely acrid, pungent, burnt sweet, hot fatexp.
Melting point
-87.8 °Cexp.
Boiling point
52.3 °Cexp.
Density
Relative density (water = 1): 0.8exp.
Flash point
-29 °Cexp.
Autoignition temperature
220 °Cexp.
Solubility
In water, 2.11 × 10⁺⁵ mg/L at 20 °Cexp.
Vapour pressure
VP: 217.5 mm Hg at 20 °C, 442.5 mm Hg at 38 °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
56.06 g/molcalc.
Exact mass
56.0262 Dacalc.
LogP (octanol/water)
0.37calc.
Topological polar surface area
17.07 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
1calc.
Heavy atoms
4calc.
Rings
0calc.
Aromatic rings
0calc.
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.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS02: Flammable
Flammable
GHS05: Corrosive
Corrosive
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS09: Hazardous to the environment
Hazardous to the environment
343NFPA 704 rating

Hazard statements

  • H225Highly flammable liquid and vapour.
  • H300Fatal if swallowed.
  • H311Toxic in contact with skin.
  • H314Causes severe skin burns and eye damage.
  • H330Fatal if inhaled.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (33)
  • 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.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P262Do not get in eyes, on skin, or on clothing.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P284In case of inadequate ventilation wear respiratory protection.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P301 + P330 + P331If swallowed: Rinse mouth. Do not induce vomiting.
  • P302 + P352If on skin: Wash with plenty of water.
  • P302 + P361 + P354If on skin: Take off immediately all contaminated clothing. Immediately rinse with water for several minutes.
  • P303 + P361 + P353If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P320Specific treatment is urgent (see supplemental first aid instructions on the label).
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P361 + P364Take off immediately all contaminated clothing. And wash it before reuse.
  • P363Wash contaminated clothing before reuse.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P391Collect spillage.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P403 + P235Store in a well-ventilated place. Keep cool.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 1092
Transport hazard class
6.1
Packing group
I

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

Acrolein suppliers

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All 66 suppliers
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Where suppliers are based

66 suppliers in 13 countries

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Acrolein 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

It is used commercially as a very effective broad-spectrum biocide in very low concentrations of approximately 10 ppm. For example, it is applied to control the growth of aquatic weeds in irrigation waterways or of algae and mollusks in recirculating water systems. Of particular importance is the use of acrolein as a biocide in oil-field brines, it increases the efficiency of oil-field water flooding and is useful in brine disposal operations. Furthermore, it is used in oil-field waters to scavenge malodorous hydrogen sulfide completely. The main field of use includes the production of methionine, methionine hydroxy analog, acrylic acid, 1,3 propanediol, glutaraldehyde, pyridines, flavors and fragrances.

Manufacturing colloidal forms of metals, making plastics, perfumes, warning agent in methyl chloride refrigerant. Has been used in military poison gas mixtures. Used in organic synthesis.

Read more

Aquatic herbicide.

Intermediate for synthetic glycerol, polyurethane and polyester resins, methionine, pharmaceuticals, herbicide, warning agents in gases.

The largest use for acrolein is as an intermediate in the synthesis of acrylic acid and as a biocide.

Industrial uses: Other, Intermediate, Corrosion inhibitor, Reducing agent.

Use classes: Volatile organic compounds.

Roles

  • animal metabolite
  • eukaryotic metabolite
  • herbicide
  • human metabolite
  • human xenobiotic metabolite
  • mammalian metabolite
  • metabolite
  • pesticide
  • poison
  • toxin
  • xenobiotic metabolite

Functional uses

  • Biocide
  • Flavouring and nutrient

How it is made

The commercial production of acrolein by heterogeneously catalyzed gas-phase condensation of acetaldehyde and formaldehyde was established by Degussa in 1942. Today, acrolein is produced on a large commercial scale by heterogeneously catalyzed gas-phase oxidation of propene.

It was produced commercially starting in 1938 by the vapor-phase condensation of acetaldehyde and formaldehyde. In 1959, the direct oxidation of propylene in presence of a catalyst became the preferred commercial process, and variations of this process are the only methods currently used commercially.

Read more

The acetaldehyde-formaldehyde route was last used in the USA in 1970.

Manufacture: (A) By oxidation of acetaldehyde, (B) By oxidation of propylene in liquid phase, (C) By oxidation of propylene in vapor phase, (D) By oxidation of allyl alcohol.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 605-008-00-3

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

Frequently asked questions

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

What is Acrolein?

Acrolein is an enal that is prop-2-ene with an oxo group at position 1. It has a role as a herbicide, a toxin and a human xenobiotic metabolite.

What is the CAS number of Acrolein?

The CAS registry number of Acrolein is 107-02-8.

What is the molecular formula and weight of Acrolein?

The molecular formula of Acrolein is C3H4O and its molar mass is 56.06 g/mol.

What is Acrolein used for?

It is used commercially as a very effective broad-spectrum biocide in very low concentrations of approximately 10 ppm. For example, it is applied to control the growth of aquatic weeds in irrigation waterways or of algae and mollusks in recirculating water systems.

Is Acrolein hazardous?

Acrolein carries the GHS signal word "Danger". Main hazards: highly flammable liquid and vapour, fatal if swallowed, toxic in contact with skin. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Acrolein?

Acrolein 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 Acrolein?

CompoundList lists 66 suppliers of Acrolein in United States, China, Germany, Spain and 9 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Acrolein in India?

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

What is the price of Acrolein?

Suppliers quote Acrolein 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 Acrolein

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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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