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Hydrocarbons

Norbornene

Also known as Norfenchene, 3,6-Endomethylenecyclohexene, Norcamphene

CAS 498-66-8Formula C7H10Molar mass 94.16 g/molEC 207-866-0
GHS signal word: Danger. Pictograms: Flammable, Harmful or irritant, Serious health hazard, Hazardous to the environment 4 suppliers listed
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Norbornene chemical structure, C7H10, CAS 498-66-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
498-66-8
Formula
C7H10
Molar mass
94.16 g/mol
Physical form
Solid
HS code
290219
Category
Hydrocarbons
Illustrative photo, closed jumbo bulk bags in a warehouse in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Norbornene?

Plain description, key identifiers and synonyms

Norbornene is a bridged compound that is cyclohexane with a methylene bridge between carbons 1 and 4 and a double bond at position 2. It is a cyclic olefin, a bridged compound and a carbobicyclic compound.

Norbornene is an unsaturated, bicyclic hydrogencarbon.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(1R,4S)-bicyclo[2.2.1]hept-2-ene
CAS number
498-66-8
EC number
207-866-0
Molecular formula
C7H10
UNII
2Q51FLS550
MDL number
MFCD00082304
InChIKey
JFNLZVQOOSMTJK-KNVOCYPGSA-N
InChI
InChI=1S/C7H10/c1-2-7-4-3-6(1)5-7/h1-2,6-7H,3-5H2/t6-,7+
Canonical SMILES
C1=CC2CCC1C2
Isomeric SMILES
C1C[C@H]2C[C@@H]1C=C2

Synonyms

  • Norfenchene
  • 3,6-Endomethylenecyclohexene
  • Norcamphene
  • 2-Norbornylene
  • (1R,4S)-bicyclo[2.2.1]hept-2-ene
  • 8,9,10-Trinorborn-2-ene
  • Bicyclo(2.2.1)heptene
  • (1R,4S)-bicyclo(2.2.1)hept-2-ene
  • b(2.2.1)heptene
  • Bicyclo(2.2.1)hept-2-ene
  • cis-norbornene
  • 2-norbornen
  • bicyclo[2.2.1]hept-5-ene
  • Bicyclo[2.2.1]hept-2-ene, 99%
  • (1S,4R)-bicyclo[2.2.1]hept-2-ene
  • Norbornene 100 microg/mL in Acetonitrile

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
Solidexp.

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
94.16 g/molcalc.
Exact mass
94.0783 Dacalc.
LogP (octanol/water)
1.97calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
7calc.
Rings
2calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.71calc.
Formal charge
0calc.
Stereocentres
2calc.
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, C1=CC2CCC1C2

C1=CC2CCC1C2

2 rings, 7 atoms.

1,083 other chemicals share this scaffold

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
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H228Flammable solid.
  • H319Causes serious eye irritation.
  • H361Suspected of damaging fertility or the unborn child.
  • H411Toxic to aquatic life with long lasting effects.
Precautionary statements (14)
  • P203Obtain, read and follow all safety instructions before use.
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P240Ground and bond container and receiving equipment.
  • P241Use explosion-proof electrical, ventilating and lighting equipment.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P318If exposed or concerned, get medical advice.
  • P337 + P317If eye irritation persists: Get medical help.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P391Collect spillage.
  • P405Store locked up.
  • 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

Norbornene suppliers

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All 4 suppliers
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Where suppliers are based

4 suppliers in 2 countries

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Norbornene 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

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

Frequently asked questions

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

What is Norbornene?

Norbornene is a bridged compound that is cyclohexane with a methylene bridge between carbons 1 and 4 and a double bond at position 2. It is a cyclic olefin, a bridged compound and a carbobicyclic compound.

What is the CAS number of Norbornene?

The CAS registry number of Norbornene is 498-66-8.

What is the molecular formula and weight of Norbornene?

The molecular formula of Norbornene is C7H10 and its molar mass is 94.16 g/mol.

What is Norbornene used for?

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

Is Norbornene hazardous?

Norbornene carries the GHS signal word "Danger". Main hazards: flammable solid, causes serious eye irritation, suspected of damaging fertility or the unborn child. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Norbornene?

Norbornene 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 Norbornene?

CompoundList lists 4 suppliers of Norbornene in China and Japan. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Norbornene?

Suppliers quote Norbornene 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 Norbornene

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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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