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Ethers, epoxides and acetals

Allyl ethyl ether

Also known as 1-Propene, 3-ethoxy-, 3-Ethoxy-1-propene, Ethyl allyl ether

CAS 557-31-3Formula C5H10OMolar mass 86.13 g/molEC 209-169-7
GHS signal word: Danger. Pictograms: Flammable, Harmful or irritant 1 supplier listed
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Allyl ethyl ether chemical structure, C5H10O, CAS 557-31-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
557-31-3
Formula
C5H10O
Physical form
Liquid
HS code
290919
Category
Ethers, epoxides and acetals
UN number
UN 2335
Illustrative photo, 200 litre blue HDPE drums of liquid in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Allyl ethyl ether?

Plain description, key identifiers and synonyms

Allyl ethyl ether appears as a liquid. Insoluble in water and less dense than water. Hence floats on water. Emits acrid irritating fumes when heated to high temperature. Used to make other chemicals.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3-ethoxyprop-1-ene
CAS number
557-31-3 CAS number cross-checked
EC number
209-169-7
Molecular formula
C5H10O
UNII
SM8T658RE3
MDL number
MFCD00009255
InChIKey
OJPSFJLSZZTSDF-UHFFFAOYSA-N
InChI
InChI=1S/C5H10O/c1-3-5-6-4-2/h3H,1,4-5H2,2H3
SMILES (canonical and isomeric)
CCOCC=C

Synonyms

  • 1-Propene, 3-ethoxy-
  • 3-Ethoxy-1-propene
  • Ethyl allyl ether
  • Ether, allyl ethyl
  • 3-Ethoxypropene
  • Ethyl 2-propenyl ether
  • CH3CH2OCH2CH=CH2
  • UN 2335
  • 3Ethoxy1propene
  • 1Propene, 3ethoxy
  • Ethyl 2propenyl ether
  • 3-ethoxyprop-1-ene
  • Allyl ethyl ether, 95%
  • 3-ethoxy-propene
  • Allyl ethyl ether, stabilized with BHT
  • Allyl ethyl ether, technical, >=95% (GC)
  • Allyl ethyl ether [UN2335] [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
86.13 g/molcalc.
Exact mass
86.0732 Dacalc.
LogP (octanol/water)
1.21calc.
Topological polar surface area
9.23 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
3calc.
Heavy atoms
6calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.6calc.
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
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H225Highly flammable liquid and vapour.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • 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 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • 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.
  • P337 + P317If eye irritation persists: 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 2335
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

Allyl ethyl ether suppliers

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Allyl ethyl ether 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

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Allyl ethyl ether is traded under.

HS 2909.19Indicative HS code

Acyclic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives…

World exports in 2024
$10.2B
−8.7% vs 2023, imports $10.4B
2019 to 2024
Top exporters
  1. United States32.0%
  2. China22.3%
  3. Saudi Arabia12.9%
Top importers
  1. Singapore16.5%
  2. Mexico14.8%
  3. Japan14.8%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about Allyl ethyl ether, based on the data on this page

What is Allyl ethyl ether?

Allyl ethyl ether appears as a liquid. Insoluble in water and less dense than water. Hence floats on water. Emits acrid irritating fumes when heated to high temperature. Used to make other chemicals.

What is the CAS number of Allyl ethyl ether?

The CAS registry number of Allyl ethyl ether is 557-31-3.

What is the molecular formula and weight of Allyl ethyl ether?

The molecular formula of Allyl ethyl ether is C5H10O and its molar mass is 86.13 g/mol.

What is Allyl ethyl ether used for?

Known uses and roles of Allyl ethyl ether include building blocks in research and laboratory.

Is Allyl ethyl ether hazardous?

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

What is the HS code of Allyl ethyl ether?

Allyl ethyl ether is usually classified under HS code 290919 (Acyclic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Allyl ethyl ether?

CompoundList lists 1 supplier of Allyl ethyl ether in 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 Allyl ethyl ether?

Suppliers quote Allyl ethyl ether 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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