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Aldehydes and ketones

Glycidaldehyde

Also known as Oxiranecarboxaldehyde, Glycidal, Glycidylaldehyde

CAS 765-34-4Formula C3H4O2Molar mass 72.06 g/molEC 212-143-8
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Glycidaldehyde chemical structure, C3H4O2, CAS 765-34-4
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless liquid
Melting point
-62 °C
Boiling point
112.5 °C
Density
1.1403 @ 20 °C/4 °C
Flash point
31.1 °C
HS code
291229
Category
Aldehydes and ketones
UN number
UN 2622
Illustrative photo, clear liquid in sealed glass ampoules on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Glycidaldehyde?

Plain description, key identifiers and synonyms

Glycidaldehyde is an epoxide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
oxirane-2-carbaldehyde
CAS number
765-34-4 CAS number cross-checked
EC number
212-143-8
Molecular formula
C3H4O2
UNII
KYS59R58SK
MDL number
MFCD01724999
InChIKey
IWYRWIUNAVNFPE-UHFFFAOYSA-N
InChI
InChI=1S/C3H4O2/c4-1-3-2-5-3/h1,3H,2H2
SMILES (canonical and isomeric)
C1C(O1)C=O

Synonyms

  • Oxiranecarboxaldehyde
  • Glycidal
  • Glycidylaldehyde
  • 2,3-Epoxypropanal
  • Epihydrinaldehyde
  • Epihydrine aldehyde
  • Epoxypropanal
  • 2-Oxiranecarboxaldehyde
  • 2,3-Epoxypropionaldehyde
  • Formyloxiran
  • Glycinaldehyde
  • 2,3-Epoxy-1-propanal
  • Oxirane-carboxaldehyde
  • Propionaldehyde, 2,3-epoxy-
  • Formyloxirane
  • oxirane-2-carbaldehyde
  • RCRA waste number U126
  • RCRA waste no. U126
  • Epihydrinaldehyd
  • Glycialdehyde
  • Propionaldehyde,3-epoxy-
  • 5-17-09-00006 (Beilstein Handbook Reference)
  • Glycidaldehyde [UN2622] [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

Appearance
Colorless liquidexp.
Odour
Pungentexp.
Melting point
-62 °Cexp.
Boiling point
112.5 °Cexp.
Density
1.1403 @ 20 °C/4 °Cexp.
Flash point
31.1 °Cexp.
Solubility
MISCIBLE WITH WATER & ALL COMMON SOLVENTS, IMMISCIBLE WITH PETROLEUM ETHER.exp.

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
72.06 g/molcalc.
Exact mass
72.0211 Dacalc.
LogP (octanol/water)
-0.42calc.
Topological polar surface area
29.6 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
1calc.
Heavy atoms
5calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.67calc.
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, C1CO1

C1CO1

1 ring, 3 atoms, the Ethylene oxide ring system.

3,057 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS classification
Hazard pictograms
UN number
UN 2622
Transport hazard class
3
Packing group
II

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

Glycidaldehyde suppliers

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Glycidaldehyde 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

As a crosslinking agent for the finishing of wool, for the tanning and fat liquoring of leather, surgical sutures.

Research chemical.

Veterinary medication:.

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

Frequently asked questions

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

What is Glycidaldehyde?

Glycidaldehyde is an epoxide.

What is the CAS number of Glycidaldehyde?

The CAS registry number of Glycidaldehyde is 765-34-4.

What is the molecular formula and weight of Glycidaldehyde?

The molecular formula of Glycidaldehyde is C3H4O2 and its molar mass is 72.06 g/mol.

What is Glycidaldehyde used for?

As a crosslinking agent for the finishing of wool, for the tanning and fat liquoring of leather, surgical sutures. Research chemical. Veterinary medication:.

Is Glycidaldehyde hazardous?

No GHS hazard classification for Glycidaldehyde 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 Glycidaldehyde?

Glycidaldehyde 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 Glycidaldehyde?

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What is the price of Glycidaldehyde?

Suppliers quote Glycidaldehyde 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 Glycidaldehyde

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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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