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Ethers, epoxides and acetals

Ethynyloxybenzene

Also known as ethynoxybenzene, (ethynyloxy)benzene, Benzene, (ethynyloxy)-

CAS 4279-76-9Formula C8H6OMolar mass 118.14 g/mol
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Ethynyloxybenzene chemical structure, C8H6O, CAS 4279-76-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
4279-76-9
Formula
C8H6O
Molar mass
118.14 g/mol
HS code
290930
Category
Ethers, epoxides and acetals

What is Ethynyloxybenzene?

Plain description, key identifiers and synonyms

Ethynyloxybenzene is a chemical substance with the molecular formula C8H6O and a molar mass of 118.14 g/mol. Its CAS registry number is 4279-76-9. The IUPAC name is ethynoxybenzene.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
ethynoxybenzene
CAS number
4279-76-9 CAS number cross-checked
Molecular formula
C8H6O
InChIKey
HJCNOCJDGPFRNM-UHFFFAOYSA-N
InChI
InChI=1S/C8H6O/c1-2-9-8-6-4-3-5-7-8/h1,3-7H
SMILES (canonical and isomeric)
C#COC1=CC=CC=C1

Synonyms

  • ethynoxybenzene
  • (ethynyloxy)benzene
  • Benzene, (ethynyloxy)-
  • Phenoxyacetylene
  • phenoxyethyne

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
118.14 g/molcalc.
Exact mass
118.0419 Dacalc.
LogP (octanol/water)
1.66calc.
Topological polar surface area
9.23 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
1calc.
Heavy atoms
9calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
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, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 other chemicals share this scaffold

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.

Ethynyloxybenzene suppliers

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

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Ethynyloxybenzene price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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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 Ethynyloxybenzene is traded under.

HS 2909.30Indicative HS code

Aromatic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives

World exports in 2024
$470M
−2.2% vs 2023, imports $432M
2019 to 2024
Top exporters
  1. China45.7%
  2. Germany15.7%
  3. India * partner reported9.9%
Top importers
  1. United States14.3%
  2. China11.8%
  3. India * partner reported8.3%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Ethynyloxybenzene?

Ethynyloxybenzene is a chemical substance with the molecular formula C8H6O and a molar mass of 118.14 g/mol. Its CAS registry number is 4279-76-9. The IUPAC name is ethynoxybenzene.

What is the CAS number of Ethynyloxybenzene?

The CAS registry number of Ethynyloxybenzene is 4279-76-9.

What is the molecular formula and weight of Ethynyloxybenzene?

The molecular formula of Ethynyloxybenzene is C8H6O and its molar mass is 118.14 g/mol.

What is Ethynyloxybenzene used for?

Known uses and roles of Ethynyloxybenzene include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Ethynyloxybenzene hazardous?

No GHS hazard classification for Ethynyloxybenzene 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 Ethynyloxybenzene?

Ethynyloxybenzene is usually classified under HS code 290930 (Aromatic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Ethynyloxybenzene?

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

What is the price of Ethynyloxybenzene?

Suppliers quote Ethynyloxybenzene 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 Ethynyloxybenzene

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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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