CompoundList

Acetoacetaldehyde

Also known as 3-oxobutanal, Butanal, 3-oxo-, acetylacetaldehyde

CAS 625-34-3Formula C4H6O2Molar mass 86.09 g/mol
Acetoacetaldehyde chemical structure, C4H6O2, CAS 625-34-3
2D chemical structure

Key facts

What buyers check first

CAS number
625-34-3
Formula
C4H6O2
Molar mass
86.09 g/mol
HS code
291440
Category
Aldehydes and ketones

What is Acetoacetaldehyde?

Plain description, key identifiers and synonyms

Acetoacetaldehyde is a chemical substance with the molecular formula C4H6O2 and a molar mass of 86.09 g/mol. Its CAS registry number is 625-34-3. The IUPAC name is 3-oxobutanal.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3-oxobutanal
CAS number
625-34-3
Molecular formula
C4H6O2
MDL number
MFCD16868321
InChIKey
PKQIDSVLSKFZQC-UHFFFAOYSA-N
InChI
InChI=1S/C4H6O2/c1-4(6)2-3-5/h3H,2H2,1H3
SMILES (canonical and isomeric)
CC(=O)CC=O

Synonyms

  • 3-oxobutanal
  • Butanal, 3-oxo-
  • acetylacetaldehyde
  • 3-oxobutyraldehyde
  • formylacetone

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
86.09 g/molcalc.
Exact mass
86.0368 Dacalc.
LogP (octanol/water)
0.16calc.
Topological polar surface area
34.14 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
2calc.
Heavy atoms
6calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.5calc.
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

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Acetoacetaldehyde suppliers

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Acetoacetaldehyde 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

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Acetoacetaldehyde is traded under.

HS 2914.40Indicative HS code

Ketone-alcohols and ketone-aldehydes

World exports in 2024
$199M
+2.5% vs 2023, imports $247M
2019 to 2024
Top exporters
  1. China29.5%
  2. Germany14.4%
  3. Netherlands12.7%
Top importers
  1. United States37.2%
  2. Netherlands8.5%
  3. Germany6.4%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Acetoacetaldehyde?

Acetoacetaldehyde is a chemical substance with the molecular formula C4H6O2 and a molar mass of 86.09 g/mol. Its CAS registry number is 625-34-3. The IUPAC name is 3-oxobutanal.

What is the CAS number of Acetoacetaldehyde?

The CAS registry number of Acetoacetaldehyde is 625-34-3.

What is the molecular formula and weight of Acetoacetaldehyde?

The molecular formula of Acetoacetaldehyde is C4H6O2 and its molar mass is 86.09 g/mol.

What is Acetoacetaldehyde used for?

Known uses and roles of Acetoacetaldehyde include building blocks in research and laboratory.

Is Acetoacetaldehyde hazardous?

No GHS hazard classification for Acetoacetaldehyde is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Acetoacetaldehyde?

Acetoacetaldehyde is usually classified under HS code 291440 (Ketone-alcohols and ketone-aldehydes). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Acetoacetaldehyde?

Post a free request on CompoundList and suppliers of Acetoacetaldehyde will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Acetoacetaldehyde?

Suppliers quote Acetoacetaldehyde 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 Acetoacetaldehyde

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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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