Molekula
2,5-Norbornadiene
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
2,5-Norbornadiene is a cyclic hydrocarbon used in organic synthesis and as a precursor in the production of specialty polymers and materials. It is a colorless liquid with a pungent odor, highly flammable, and requires careful handling. CAS: 121-46-0, Molecular formula: C7H8, Molecular weight: 92.14 g/mol, Storage: Ambient, Signal word: Danger.
Molekula supplies 2,5-Norbornadiene at >99% purity in 25 g and 100 g packs, from £121.80 inc. VAT. It is made or sourced to order. Every batch ships with a certificate of analysis, and safety data sheets are available in 7 languages. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
On backorder — expected to ship by 5 December 2026
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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25 g — £101.50 per pack ex VAT · £121.80 inc. VAT
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100 g — £223.40 per pack ex VAT · £268.08 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Colorless transparent liquid |
| Acetone | <0.5% |
| Assay | >99% |
| Benzene | <0.5% |
| Cyclopentadiene | <0.5% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | -12 °C |
| Transport Class | 3 |
| Packing Group | II |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Vapour Pressure | 25.5 mmHg |
Source: PubChem CID 8473 (Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 90034363 |
| CAS Number | 121-46-0 |
| IUPAC Name | bicyclo[2.2.1]hepta-2,5-diene |
| EC Number | 204-472-0 |
| Molecular Formula | C7H8 |
| Molecular Weight | 92.14 |
| Exact Mass | 92.0626 |
| SMILES | C1C2C=CC1C=C2 |
| InChIKey | SJYNFBVQFBRSIB-UHFFFAOYSA-N |
| InChI | InChI=1S/C7H8/c1-2-7-4-3-6(1)5-7/h1-4,6-7H,5H2 |
| PubChem CID | 8473 |
| UN Number | UN2251 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29021900 |
| Tariff Code | 2902190000 |
Safety & GHS
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Flammable
GHS02
-
Health Hazard
GHS07
Hazard statements
- H225 Highly flammable liquid and vapour
- H303 May be harmful if swallowed
- H315 Causes skin irritation
- H317 May cause an allergic skin reaction
- H318 Causes serious eye damage
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P304+341 IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- 2,5-Norbornadiene (stabilized with BHT)
- 3,6-Methano-1,4-cyclohexadiene
- 8,9,10-Trinorborna-2,5-diene
- Bicyclo(2.2.1)heptadiene
- Bicyclo[2.2.1]-2,5-heptadiene
- bicyclo[2.2.1]hept-2,5-diene
- Bicyclo[2.2.1]hepta-2,5-diene
- Bicycloheptadiene
- Dicycloheptadiene
- Norbornadiene
Frequently asked questions
What is 2,5-Norbornadiene used for?
It is primarily used as a building block in organic synthesis, particularly in Diels-Alder reactions and as a precursor for functionalized cycloadducts.
What is the chemical formula and molecular weight of 2,5-Norbornadiene?
The formula is C7H8 with a molecular weight of 92.14 g/mol.
How should 2,5-Norbornadiene be stored?
It should be stored at ambient temperature, away from light and heat, in a tightly sealed container.
What grade is available for 2,5-Norbornadiene?
It is supplied to a specification of assay >99%, with acetone, benzene and cyclopentadiene each below 0.5%; custom purity options may be available upon request.
Can Molekula supply 2,5-Norbornadiene in bulk?
Yes, bulk quantities are available—please contact our sales team for pricing and availability.
What documentation comes with a purchase of 2,5-Norbornadiene?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
Where can I buy 2,5-Norbornadiene?
Directly from Molekula, which lists 2,5-Norbornadiene in 25 g and 100 g packs from £121.80 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
Is 2,5-Norbornadiene dangerous goods for shipping?
Yes. 2,5-Norbornadiene ships as dangerous goods: UN2251, class 3, packing group II.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.