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Olefins and dienes

Divinylacetylene

Also known as 1,5-Hexadien-3-yne, divinyl acetylene, 1,5-Hexadiene-3-yne

CAS 821-08-9Formula C6H6Molar mass 78.11 g/mol
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Divinylacetylene chemical structure, C6H6, CAS 821-08-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
821-08-9
Formula
C6H6
Molar mass
78.11 g/mol
HS code
290129
Category
Olefins and dienes

What is Divinylacetylene?

Plain description, key identifiers and synonyms

Divinylacetylene is a chemical substance with the molecular formula C6H6 and a molar mass of 78.11 g/mol. Its CAS registry number is 821-08-9. The IUPAC name is hexa-1,5-dien-3-yne.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
hexa-1,5-dien-3-yne
CAS number
821-08-9 CAS number cross-checked
Molecular formula
C6H6
UNII
99P0CFP5ME
InChIKey
AUBDSFLQOBEOPX-UHFFFAOYSA-N
InChI
InChI=1S/C6H6/c1-3-5-6-4-2/h3-4H,1-2H2
SMILES (canonical and isomeric)
C=CC#CC=C

Synonyms

  • 1,5-Hexadien-3-yne
  • divinyl acetylene
  • 1,5-Hexadiene-3-yne
  • CH2=CHC.$.CCH=CH2
  • hexa-1,5-dien-3-yne
  • divinylacetylen

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
78.11 g/molcalc.
Exact mass
78.047 Dacalc.
LogP (octanol/water)
1.36calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
6calc.
Rings
0calc.
Aromatic rings
0calc.
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.

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.

Divinylacetylene suppliers

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Divinylacetylene 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

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

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 Divinylacetylene is traded under.

HS 2901.29Indicative HS code

Unsaturated, other

World exports in 2024
$2.65B
−3.2% vs 2023, imports $2.57B
2019 to 2024
Top exporters
  1. United States43.9%
  2. South Africa15.3%
  3. Qatar * partner reported9.0%
Top importers
  1. Singapore10.9%
  2. United States10.1%
  3. South Korea8.7%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Divinylacetylene?

Divinylacetylene is a chemical substance with the molecular formula C6H6 and a molar mass of 78.11 g/mol. Its CAS registry number is 821-08-9. The IUPAC name is hexa-1,5-dien-3-yne.

What is the CAS number of Divinylacetylene?

The CAS registry number of Divinylacetylene is 821-08-9.

What is the molecular formula and weight of Divinylacetylene?

The molecular formula of Divinylacetylene is C6H6 and its molar mass is 78.11 g/mol.

Is Divinylacetylene hazardous?

No GHS hazard classification for Divinylacetylene 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 Divinylacetylene?

Divinylacetylene is usually classified under HS code 290129 (Unsaturated, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Divinylacetylene?

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

What is the price of Divinylacetylene?

Suppliers quote Divinylacetylene 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 Divinylacetylene

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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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