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Ethers, epoxides and acetals

Propargyl ether

Also known as Dipropargyl ether, dipropargylether, 2-Propynyl ether

CAS 6921-27-3Formula C6H6OMolar mass 94.11 g/molEC 628-937-6
GHS signal word: Warning. Pictograms: Flammable, Harmful or irritant 1 supplier listed
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Propargyl ether chemical structure, C6H6O, CAS 6921-27-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
6921-27-3
Formula
C6H6O
Molar mass
94.11 g/mol
Physical form
Liquid
HS code
290919
Category
Ethers, epoxides and acetals
Illustrative photo, a closed 1000 litre IBC tote in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Propargyl ether?

Plain description, key identifiers and synonyms

Propargyl ether is a chemical substance with the molecular formula C6H6O and a molar mass of 94.11 g/mol. Its CAS registry number is 6921-27-3. The IUPAC name is 3-prop-2-ynoxyprop-1-yne.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3-prop-2-ynoxyprop-1-yne
CAS number
6921-27-3 CAS number cross-checked
EC number
628-937-6
Molecular formula
C6H6O
MDL number
MFCD00048108
InChIKey
HRDCVMSNCBAMAM-UHFFFAOYSA-N
InChI
InChI=1S/C6H6O/c1-3-5-7-6-4-2/h1-2H,5-6H2
SMILES (canonical and isomeric)
C#CCOCC#C

Synonyms

  • Dipropargyl ether
  • dipropargylether
  • 2-Propynyl ether
  • 1-Propyne, 3,3'-oxybis-
  • 3-(prop-2-yn-1-yloxy)prop-1-yne
  • 3-prop-2-ynoxyprop-1-yne
  • Dipropargyl oxide
  • di(2-propynyl) ether
  • Bis(2-propynyl) ether
  • propargylether
  • propargyl-ether
  • Dipropargly Ether
  • Propargyl ether, 98%
  • 3-Prop-2-ynyloxy-propyne
  • 1-prop-2-ynyloxyprop-2-yne
  • (HC.$.CCH2)2O
  • 3-(2-Propynyloxy)-1-propyne #
  • 3-[(Prop-2-yn-1-yl)oxy]prop-1-yne

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
94.11 g/molcalc.
Exact mass
94.0419 Dacalc.
LogP (octanol/water)
0.27calc.
Topological polar surface area
9.23 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
2calc.
Heavy atoms
7calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.33calc.
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
Warning
GHS02: Flammable
Flammable
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H226Flammable liquid and vapour.
  • H302Harmful if swallowed.
Precautionary statements (15)
  • 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.
  • 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.
  • P330Rinse mouth.
  • 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.

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

Propargyl ether suppliers

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Where suppliers are based

1 supplier in 1 country

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

Frequently asked questions

Quick answers about Propargyl ether, based on the data on this page

What is Propargyl ether?

Propargyl ether is a chemical substance with the molecular formula C6H6O and a molar mass of 94.11 g/mol. Its CAS registry number is 6921-27-3. The IUPAC name is 3-prop-2-ynoxyprop-1-yne.

What is the CAS number of Propargyl ether?

The CAS registry number of Propargyl ether is 6921-27-3.

What is the molecular formula and weight of Propargyl ether?

The molecular formula of Propargyl ether is C6H6O and its molar mass is 94.11 g/mol.

What is Propargyl ether used for?

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

Is Propargyl ether hazardous?

Propargyl ether carries the GHS signal word "Warning". Main hazards: flammable liquid and vapour, harmful if swallowed. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Propargyl ether?

Propargyl 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 Propargyl ether?

CompoundList lists 1 supplier of Propargyl ether 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 Propargyl ether?

Suppliers quote Propargyl 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

Practical guides that help when you source, ship or handle Propargyl ether

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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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