Chemical intermediate for insecticides and polymers
Cyclopentadiene dimer, also known as dicyclopentadiene, is an industrial chemical that appears as a liquid with an acrid odor. It is primarily used as a chemical intermediate in the production of insecticides and polymers.
Chemical intermediate for insecticidesMonomer and curing agent in polymer productionFlame retardant in plastics
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
Safety Reference
Flammable
Toxic
Harmful
Health Hazard
Environmental Hazard
Danger
Customs Tariff Classification
The international HS code for Cyclopentadiene dimer (CAS 77-73-6) is 2902.19.
HS code (international, 6-digit)
2902.19
EU CN code (8-digit)
2902 19 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
tricyclo[5.2.1.02,6]deca-3,8-diene
InChIKey
HECLRDQVFMWTQS-UHFFFAOYSA-N
SMILES
C1C=CC2C1C3CC2C=C3
Synonyms (33)
DCPD
DICY
1, dimer
1,3-CPD
1,3-Dicyclopentadiene dimer
Bicyclopentadiene
Biscyclopentadiene
Cyclopentadiene dimer
DCPD 103
Dicyklopentadien
Dicyklopentadien [Czech]
Dimer cyklopentadienu
Dimer cyklopentadienu [Czech]
Prometa XP 100
ULTRENE 99
alpha-Dicyclopentadiene (endo
endo-Dicyclopentadiene
H225Highly flammable liquid and vapour
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H332Harmful if inhaled
H335May cause respiratory irritation
H411Toxic to aquatic life with long lasting effects
H226Flammable liquid and vapour
H228Flammable solid
H304May be fatal if swallowed and enters airways
H317May cause an allergic skin reaction
H330Fatal if inhaled
H361Suspected of damaging fertility or the unborn child
H373May cause damage to organs through prolonged or repeated exposure
H400Very toxic to aquatic life
H351Suspected of causing cancer
H412Harmful to aquatic life with long lasting effects
H320Causes eye irritation
H336May cause drowsiness or dizziness
H370Causes damage to organs
H401Toxic to aquatic life
H313May be harmful in contact with skin
H372Causes damage to organs through prolonged or repeated exposure
