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Product Description


  • 111-78-4
  • C8H12

Product Name: 1,5-Cyclooctadiene
Synonyms: Cycloocta-1,5-diene;COD;CIS,CIS-1,5-CYCLOOCTADIENE;1,5-CYCLOOCTADIENE;1,5-CYCLOOCTADIENE, REDISTILLED, 99+%;1,5-Cyclooctadiene, stabilized, 97%;1,5-COD
CAS: 111-78-4
MF: C8H12
MW: 108.18
EINECS: 203-907-1
Product Categories: Alkenes;Cyclic;Organic Building Blocks


UN No. : 2520
Hazard class: 3
Packing group: 3


Chemical Properties

Appearance: Colorless liquid 
COD assay: 99%min 
4-VCH: 1% max 
Moisture: 500ppm max 
Color: 20 max

Melting point : -69.5 °C
Boiling point: 151 °C
density: 0.882 g/mL at 25 °C(lit.)
vapor pressure: 25.8 mm Hg ( 37.7 °C)
refractive index: n20/D 1.493
Fp: 89 °F
storage temp.: 2-8°C


1,5-Cyclooctadiene is the organic compound with the chemical formula C8H12. Generally abbreviated COD, this diene is a useful precursor to other organic compounds and serves as a ligand in organometallic chemistry. It is a colorless liquid with a strong odor. 1,5-Cyclooctadiene can be prepared by dimerization of butadiene in the presence of a nickel catalyst, a coproduct being vinylcyclohexene


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