Cyclopentene

C₅H₈CAS 142-29-068.12 g/mol

Open in Covalent MOL file

Alkene

Properties

Molecular formula: C₅H₈
Molar mass: 68.12 g/mol
Exact mass: 68.0626 Da
Density: 0.7754 g/mL (at 14 °C)
Melting point: −135.1 °C
Boiling point: 44.2 °C
Flash point: -34.4 °C
logP: 1.73Crippen estimate
Polar surface area: 0.0 Å²
H-bond donors / acceptors: 0 / 0
Rotatable bonds: 0

Hazards

Danger

H225 Highly Flammable liquid and vapor100% of notifiers
H302+H312 Harmful if swallowed or in contact with skin21.1% of notifiers
H302 Harmful if swallowed99.5% of notifiers
H304 May be fatal if swallowed and enters airways83.7% of notifiers
H312 Harmful in contact with skin100% of notifiers
H315 Causes skin irritation93.7% of notifiers
H319 Causes serious eye irritation13.2% of notifiers
H335 May cause respiratory irritation11.6% of notifiers
H412 Harmful to aquatic life with long lasting effects14.7% of notifiers

Aggregated from 190 ECHA notifications, via PubChem; a share says how many notifiers assign that statement.

Precautionary statements

P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P270, P271, P273, P280, P301+P316, P301+P317, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P317, P319, P321, P330, P331, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, P501