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Ethers, epoxides and acetals

Vinyloxirane

Also known as Butadiene monoxide, 3,4-Epoxy-1-butene, 2-Vinyloxirane

CAS 930-22-3Formula C4H6OMolar mass 70.09 g/molEC 213-210-4
GHS signal word: Danger. Pictograms: Flammable, Harmful or irritant 8 suppliers listed
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Vinyloxirane chemical structure, C4H6O, CAS 930-22-3
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Liquid
Melting point
-135 °C
Boiling point
68 °C
Density
0.9006 g/cm³ @ 25 °C
Flash point
<-50
HS code
291090
Category
Ethers, epoxides and acetals
UN number
UN 1993
Illustrative photo, a closed 1000 litre IBC tote in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Vinyloxirane?

Plain description, key identifiers and synonyms

1,2-epoxy-3-butene is a clear light yellow liquid. (NTP, 1992)

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-ethenyloxirane
CAS number
930-22-3 CAS number cross-checkedOther or deprecated CAS: 26703-03-7
EC number
213-210-4
Molecular formula
C4H6O
UNII
478ERR5NKR
MDL number
MFCD00005149
InChIKey
GXBYFVGCMPJVJX-UHFFFAOYSA-N
InChI
InChI=1S/C4H6O/c1-2-4-3-5-4/h2,4H,1,3H2
SMILES (canonical and isomeric)
C=CC1CO1

Synonyms

  • Butadiene monoxide
  • 3,4-Epoxy-1-butene
  • 2-Vinyloxirane
  • Oxirane, ethenyl-
  • 1,2-Epoxy-3-butene
  • Ethenyloxirane
  • Butadiene monoepoxide
  • Butadiene oxide
  • Butadiene monooxide
  • Vinylethylene oxide
  • 1,2-Epoxybutene-3
  • 3,4-Epoxybutene
  • 1,2-Oxido-3-butene
  • 1,3-Butadiene oxide
  • 1,2-Epoxybutene
  • Epoxybutene
  • Monoepoxybutene
  • 1,3-Butadiene monoepoxide
  • 1-Butene, 3,4-epoxy-
  • Monoepoxybutadiene
  • vinyl oxirane
  • Vinyl epoxide
  • epoxybutadiene
  • 1,3-Butadiene monooxide
  • butadienemonoepoxide
Show all 38 synonyms
  • 1,2-EB
  • 2-ethenyloxirane
  • Butadiene epoxide
  • Oxirane, 2-ethenyl-
  • 3,4-Epoxybut-1-ene
  • (Oxiran-2-yl)ethylene
  • 1-Butene,4-epoxy-
  • 1,2-Epoxy-3-butylene
  • 2-Vinyloxirane #
  • 3,4-Epoxybutene-1
  • 1,2-epoxybut-3-ene
  • 3,4-epoxy-butene-1
  • 1,3-butadiene monoxide

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
Liquidexp.
Melting point
-135 °Cexp.
Boiling point
68 °Cexp.
Density
0.9006 g/cm³ @ 25 °Cexp.
Flash point
<-50exp.
Autoignition temperature
430 °Cexp.
Solubility
Soluble in ethanol, ethyl ether, benzene, and organic solventsexp.

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
70.09 g/molcalc.
Exact mass
70.0419 Dacalc.
LogP (octanol/water)
0.57calc.
Topological polar surface area
12.53 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
1calc.
Heavy atoms
5calc.
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, 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 signal word
Danger
GHS02: Flammable
Flammable
GHS07: Harmful or irritant
Harmful or irritant
322WNFPA 704 rating

Hazard statements

  • H225Highly flammable liquid and vapour.
  • H302Harmful if swallowed.
  • H319Causes serious eye irritation.
Precautionary statements (18)
  • 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.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P303 + P361 + P353If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P330Rinse mouth.
  • P337 + P317If eye irritation persists: Get medical help.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P403 + P235Store in a well-ventilated place. Keep cool.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 1993

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

Vinyloxirane suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 8 suppliers
8 of 8 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

8 suppliers in 2 countries

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Vinyloxirane 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

Comonomer with propylene oxide for polyethers.

Reactive diluent for epoxy resins.

Pharmacological actions

  • Mutagens

Regulatory status

Inventories, regulations and trade controls that list this substance

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 Vinyloxirane is traded under.

HS 2910.90Indicative HS code

Epoxides with a three-membered ring and their halogenated, sulphonated, nitrated or nitrosated derivatives…

World exports in 2024
$467M
−2.9% vs 2023, imports $501M
2019 to 2024
Top exporters
  1. Netherlands24.5%
  2. China19.7%
  3. Japan18.8%
Top importers
  1. United States17.6%
  2. Germany16.3%
  3. China10.8%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Vinyloxirane?

1,2-epoxy-3-butene is a clear light yellow liquid. (NTP, 1992)

What is the CAS number of Vinyloxirane?

The CAS registry number of Vinyloxirane is 930-22-3. Other or deprecated CAS numbers: 26703-03-7.

What is the molecular formula and weight of Vinyloxirane?

The molecular formula of Vinyloxirane is C4H6O and its molar mass is 70.09 g/mol.

What is Vinyloxirane used for?

Comonomer with propylene oxide for polyethers. Reactive diluent for epoxy resins.

Is Vinyloxirane hazardous?

Vinyloxirane carries the GHS signal word "Danger". Main hazards: highly flammable liquid and vapour, harmful if swallowed, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Vinyloxirane?

Vinyloxirane is usually classified under HS code 291090 (Epoxides, epoxyalcohols, epoxyphenols and epoxyethers, with a three-membered ring, and…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Vinyloxirane?

CompoundList lists 8 suppliers of Vinyloxirane in China and United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Vinyloxirane?

Suppliers quote Vinyloxirane 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 Vinyloxirane

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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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