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Heterocyclic building blocks

Acrolein dimer

Also known as 3,4-Dihydro-2H-pyran-2-carbaldehyde, 2-Propenal dimer, 3,4-Dihydro-2H-pyran-2-carboxaldehyde

CAS 100-73-2Formula C6H8O2Molar mass 112.13 g/molEC 202-884-5
GHS signal word: Danger. Pictograms: Flammable, Corrosive, Harmful or irritant 2 suppliers listed
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Acrolein dimer chemical structure, C6H8O2, CAS 100-73-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
100-73-2
Formula
C6H8O2
Physical form
Liquid
HS code
293299
Category
Heterocyclic building blocks
UN number
UN 2607
Illustrative photo, 200 litre steel drums of liquid in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Acrolein dimer?

Plain description, key identifiers and synonyms

Acrolein dimer, stabilized appears as a colorless or yellow liquid with a pungent disagreeable odor. May be irritating to the eyes and mucous membranes, long-term exposure may result in adverse health effects. Vapors denser than air. Used to make other chemicals, plastics.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3,4-dihydro-2H-pyran-2-carbaldehyde
CAS number
100-73-2 CAS number cross-checked
EC number
202-884-5
Molecular formula
C6H8O2
UNII
49SA3RBS5H
MDL number
MFCD00059170
InChIKey
NPWYTMFWRRIFLK-UHFFFAOYSA-N
InChI
InChI=1S/C6H8O2/c7-5-6-3-1-2-4-8-6/h2,4-6H,1,3H2
SMILES (canonical and isomeric)
C1CC(OC=C1)C=O

Synonyms

  • 3,4-Dihydro-2H-pyran-2-carbaldehyde
  • 2-Propenal dimer
  • 3,4-Dihydro-2H-pyran-2-carboxaldehyde
  • 2H-Pyran-2-carboxaldehyde, 3,4-dihydro-
  • 2,3-Dihydro-1,4-pyran-2-karboxaldehyd
  • Acrolein dimer, stabilized
  • UN 2607 (Salt/Mix)
  • 5-17-09-00131 (Beilstein Handbook Reference)
  • 3,4-Dihydro-2-carboxaldehyde-2H-pyran
  • Acrolein dimer, (stabilized)
  • 2Propenal dimer
  • 5Hexenal, 2,6epoxy
  • 2Formyl3,4dihydro2Hpyran
  • 2-Propenal, dimer
  • Acroleine, dimere, stabilise
  • 3,4Dihydro2Hpyran2carboxaldehyde
  • 2,3Dihydro1,4pyran2karboxaldehyd
  • Dimero de la acroleina, estabilizado
  • Acroleine, dimere, stabilise (French DOT)
  • Dimero de la acroleina, estabilizado (Spanish DOT)
  • 2-Formyl-3,4-dihydro-2H-pyran
  • Pyran aldehyde
  • 5-Hexenal, 2,6-epoxy-
  • 2,6-epoxy-5-hexenal
  • Pyrancarboxaldehyde, dihydro-
Show all 33 synonyms
  • 5-Hexenal,6-epoxy-
  • 2-Formyl-3,4-dihydropyran
  • Pyran aldehyde (Acrolein dimer)
  • 3,4-Dihydro-2-formyl-2H-pyran
  • 2H-Pyran-2-carboxaldehyde,4-dihydro-
  • 3,4-dihydro-2H-pyran-2-carboxaldeyde
  • 3,4-Dihydro-2H-pyran-2-carbaldehyde #
  • Acrolein dimer, stabilized [UN2607] [Flammable liquid]

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
112.13 g/molcalc.
Exact mass
112.0524 Dacalc.
LogP (octanol/water)
0.88calc.
Topological polar surface area
26.3 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
1calc.
Heavy atoms
8calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.5calc.
Formal charge
0calc.
Stereocentres
1calc.
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, C1=COCCC1

C1=COCCC1

1 ring, 6 atoms, the 3,4-Dihydro-2H-pyran ring system.

679 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS02: Flammable
Flammable
GHS05: Corrosive
Corrosive
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H226Flammable liquid and vapour.
  • H312Harmful in contact with skin.
  • H315Causes skin irritation.
  • H318Causes serious eye damage.
  • H332Harmful if inhaled.
  • H335May cause respiratory irritation.
Precautionary statements (25)
  • 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.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • 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.
  • P317Get medical help.
  • P319Get medical help if you feel unwell.
  • 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.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • 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 2607
Transport hazard class
3
Packing group
III

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 dimer suppliers

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Acrolein dimer price

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Uses and applications

What the substance is used for, by industry and function

Regulatory status

Inventories, regulations and trade controls that list this substance

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 Acrolein dimer is traded under.

HS 2932.99Indicative HS code

Heterocyclic compounds with oxygen hetero-atom(s) only, other

World exports in 2024
$3.81B
+10.3% vs 2023, imports $7.05B
2019 to 2024
Top exporters
  1. China28.9%
  2. Switzerland * partner reported12.7%
  3. Germany7.8%
Top importers
  1. United States49.7%
  2. China11.9%
  3. India * partner reported3.3%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Acrolein dimer?

Acrolein dimer, stabilized appears as a colorless or yellow liquid with a pungent disagreeable odor. May be irritating to the eyes and mucous membranes, long-term exposure may result in adverse health effects. Vapors denser than air. Used to make other chemicals, plastics.

What is the CAS number of Acrolein dimer?

The CAS registry number of Acrolein dimer is 100-73-2.

What is the molecular formula and weight of Acrolein dimer?

The molecular formula of Acrolein dimer is C6H8O2 and its molar mass is 112.13 g/mol.

What is Acrolein dimer used for?

Known uses and roles of Acrolein dimer include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Acrolein dimer hazardous?

Acrolein dimer carries the GHS signal word "Danger". Main hazards: flammable liquid and vapour, harmful in contact with skin, causes skin irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Acrolein dimer?

Acrolein dimer is usually classified under HS code 293299 (Heterocyclic compounds with oxygen hetero-atom(s) only, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Acrolein dimer?

CompoundList lists 2 suppliers of Acrolein dimer in China. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Acrolein dimer?

Suppliers quote Acrolein dimer 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

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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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