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Hydrocarbons

Ethynylcyclohexane

Also known as Cyclohexylacetylene, Cyclohexane, ethynyl-, Cyclohexylethyne

CAS 931-48-6Formula C8H12Molar mass 108.18 g/molEC 213-236-6
GHS signal word: Danger. Pictograms: Flammable 2 suppliers listed
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Ethynylcyclohexane chemical structure, C8H12, CAS 931-48-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
931-48-6
Formula
C8H12
Molar mass
108.18 g/mol
Physical form
Liquid
HS code
290219
Category
Hydrocarbons
Illustrative photo, closed amber glass reagent bottles on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Ethynylcyclohexane?

Plain description, key identifiers and synonyms

Ethynylcyclohexane is a chemical substance with the molecular formula C8H12 and a molar mass of 108.18 g/mol. Its CAS registry number is 931-48-6.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
ethynylcyclohexane
CAS number
931-48-6 CAS number cross-checked
EC number
213-236-6
Molecular formula
C8H12
MDL number
MFCD00001513
InChIKey
SSDZYLQUYMOSAK-UHFFFAOYSA-N
InChI
InChI=1S/C8H12/c1-2-8-6-4-3-5-7-8/h1,8H,3-7H2
SMILES (canonical and isomeric)
C#CC1CCCCC1

Synonyms

  • Cyclohexylacetylene
  • Cyclohexane, ethynyl-
  • Cyclohexylethyne
  • Cyclohexyl acetylene
  • ethynyl-cyclohexane
  • Prothizinic acid, Protizinic acid
  • 1-ethynylcyclohexane
  • 1alpha-Ethynylcyclohexane
  • ethyne,cyclohexyl-
  • cyclohexane,ethynyl-
  • Cyclohexylacetylene, 98%

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
108.18 g/molcalc.
Exact mass
108.0939 Dacalc.
LogP (octanol/water)
2.2calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
8calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.75calc.
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 Cyclohexane ring system.

24,737 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS02: Flammable
Flammable

Hazard statements

  • H225Highly flammable liquid and vapour.
Precautionary statements (11)
  • 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.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P303 + P361 + P353If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
  • 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

Ethynylcyclohexane suppliers

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

All 2 suppliers

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

2 suppliers in 2 countries

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Ethynylcyclohexane price

Indicative price range per kg from live supplier offers

No published prices right now

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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 Ethynylcyclohexane is traded under.

HS 2902.19Indicative HS code

Cyclanes, cyclenes and cycloterpenes, other

World exports in 2024
$979M
+24.3% vs 2023, imports $1B
2019 to 2024
Top exporters
  1. China23.4%
  2. United States20.6%
  3. Germany13.6%
Top importers
  1. India * partner reported9.9%
  2. United States9.8%
  3. South Korea9.5%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Ethynylcyclohexane?

Ethynylcyclohexane is a chemical substance with the molecular formula C8H12 and a molar mass of 108.18 g/mol. Its CAS registry number is 931-48-6.

What is the CAS number of Ethynylcyclohexane?

The CAS registry number of Ethynylcyclohexane is 931-48-6.

What is the molecular formula and weight of Ethynylcyclohexane?

The molecular formula of Ethynylcyclohexane is C8H12 and its molar mass is 108.18 g/mol.

What is Ethynylcyclohexane used for?

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

Is Ethynylcyclohexane hazardous?

Ethynylcyclohexane carries the GHS signal word "Danger". Main hazards: highly flammable liquid and vapour. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Ethynylcyclohexane?

Ethynylcyclohexane is usually classified under HS code 290219 (Cyclanes, cyclenes and cycloterpenes, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Ethynylcyclohexane?

CompoundList lists 2 suppliers of Ethynylcyclohexane 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 Ethynylcyclohexane?

Suppliers quote Ethynylcyclohexane 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 Ethynylcyclohexane

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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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