Pentamethylcyclopentadiene

Also known as: 1,2,3,4,5-PENTAMETHYLCYCLOPENTADIENE, 1,2,3,4,5-PENTAMETHYLCYCLOPENTADIENE, 95 %, 1,2,3,4,5-Pentamethyl-1,3-cyclopentadiene, 1,2,3,4,5-Pentamethylcyclopentadiene, 1,2,3,4,5-Pentamethylcyclopentadiene, tech, 1,2,3,4,5-pentamethyl-1,3-cyclopentadiene, 1,2,3,4,5-pentamethylcyclopenta-1,3-diene, 1,2,3,5,5-pentamethylcyclopenta-1,3-diene, 1,3-Cyclopentadiene, 1,2,3,4,5-pentamethyl-, Cyclopentadiene, 1,2,3,4,5-pentamethyl-, EINECS 223-743-4, MFCD00001354, PENTAMETHYLCYCLOPENTADIENE, PENTAMETHYLCYCLOPENTADIENE 98+%, cyclopentadiene, 1,2,3,4,5-pentamethyl-

Pentamethylcyclopentadiene (CAS 4045-44-7) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C10H16 and a molecular weight of 136.234 g/mol. Key properties include a melting point of 236ºC, a boiling point of 170.2±0.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 44.4±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

4045-44-7

Jingsj CID

J-1512730-7

Molecular Formula

C₁₀H₁₆

Molecular Weight

136.234 g/mol

Category

Aliphatic Hydrocarbons

Last updated

8/21/2026