Molekula
1,5-Cyclooctadiene
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
1,5-Cyclooctadiene is a cyclic diene used as a ligand in organometallic chemistry and as a precursor in catalytic processes. It also serves as an intermediate for resins and as the third monomer in ethylene-propylene terpolymer (EPT) rubber manufacture. It is a colorless liquid with a pungent odor. CAS: 111-78-4, Molecular formula: C8H12, Molecular weight: 108.18 g/mol. Store at ambient temperature. Hazard classification: Danger. Molekula supplies 1,5-Cyclooctadiene from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Clear colourless liquid |
| Colour | ≤ 20 |
| Purity | ≥ 99.0% |
| Moisture | ≤ 500ppm |
| 4-Vinyl-1-cyclohexene content | ≤ 1.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 38 °C |
| Transport Class | 3 |
| Packing Group | III |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Liquid |
| Melting Point | -69 °C |
| Boiling Point | 150.8 °C at 757 mmHg |
| Vapour Pressure | 4.95 mmHg |
| Refractive Index | 1.4095 |
Source: PubChem CID 82916 (HSDB, PAC Chemical Database, Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 90031035 |
| CAS Number | 111-78-4 |
| IUPAC Name | (1Z,5Z)-cycloocta-1,5-diene |
| EC Number | 203-907-1 |
| Molecular Formula | C8H12 |
| Molecular Weight | 108.18 |
| Exact Mass | 108.0939 |
| SMILES | C1/C=C\CC/C=C\C1 |
| InChIKey | VYXHVRARDIDEHS-QGTKBVGQSA-N |
| InChI | InChI=1S/C8H12/c1-2-4-6-8-7-5-3-1/h1-2,7-8H,3-6H2/b2-1-,8-7- |
| PubChem CID | 82916 |
| UN Number | UN2520 |
| REACH Code | Y110 |
| HTS Code | 2902.19.00.50 |
| Tariff Code | 2902190000 |
Safety & GHS
-
Flammable
GHS02
-
Health Hazard
GHS07
-
Serious Health Hazard
GHS08
-
Hazardous to the Environment
GHS09
Hazard statements
- H226 Flammable liquid and vapour
- H302 Harmful if swallowed
- H304 May be fatal if swallowed and enters airways
- H317 May cause an allergic skin reaction
- H332 Harmful if inhaled
- H400 Very toxic to aquatic life
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P301+330 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
Documents
Safety Data Sheets (SDS)
Available in English, 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.
Synonyms
- (1Z,5Z)-1,5-Cyclooctadiene
- (1Z,5Z)-cycloocta-1,5-diene
- (Z,Z)-1,5-Cyclooctadiene
- 1,5-cyclooctadiene, (1Z,5Z)-
- 1,5-Cyclooctadiene, (E,E)-
- 1,5-Cyclooctadiene, (Z,Z)-
- 1,5-Cyclooctadiene(COD)
- cis-1,5-cyclooctadiene
- cis,cis-1,5-Cyclooctadiene
- Cycloocta-1,5-diene
Frequently asked questions
What is 1,5-Cyclooctadiene used for?
It is commonly used as a ligand in organometallic chemistry, particularly in catalysis and the synthesis of metal complexes.
What is the chemical formula and molecular weight of 1,5-Cyclooctadiene?
The formula is C8H12 with a molecular weight of 108.18 g/mol.
How should 1,5-Cyclooctadiene be stored?
It should be stored at ambient temperature, away from light and air, to prevent oxidation.
What grade is available for 1,5-Cyclooctadiene?
Available in technical and high-purity grades; specific grades depend on application needs.
Can Molekula supply 1,5-Cyclooctadiene in bulk?
Yes, Molekula can supply 1,5-Cyclooctadiene in bulk quantities; please contact sales for details.
What documentation comes with an order of 1,5-Cyclooctadiene?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS) with the shipment.
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.