Cyclopentene (C5H8)

Cyclopentene (C5H8; CAS 142-29-0) is a practical retrosynthesis target. Cyclopentene presents a C5 framework. Open AI route search in one click below.

Target: Cyclopentene
CAS: 142-29-0
Formula: C5H8
Approx. MW: 68.12
SMILES: C1=CCCC1
PubChem CID: 8882
Approx. carbons: C5

Cyclopentene structure

Properties

IUPAC name: cyclopentene
Common names: CYCLOPENTENE; 142-29-0; 1-Cyclopentene; DTXSID6029171; UNII-ONM2CKV81Z; ONM2CKV81Z; EINECS 205-532-9; UN2246; NSC-5160; DTXCID609171
Molecular weight: 68.12
Exact mass: 68.06
InChIKey: LPIQUOYDBNQMRZ-UHFFFAOYSA-N
Melting point: -211 °F (USCG, 1999)
Boiling point: 112 °F at 760 mmHg (USCG, 1999)
Density: 0.774 (USCG, 1999) - Less dense than water; will float

View on PubChem

Cyclopentene 1H / 13C NMR spectrum →

FAQ

What is the chemical formula of Cyclopentene?

Cyclopentene has molecular formula C5H8. Molecular weight about 68.12 g·mol⁻¹.

What is the CAS number of Cyclopentene?

The CAS Registry Number for Cyclopentene is 142-29-0.

Run AI retrosynthesis for Cyclopentene Target catalog AI tools overview

One click loads Cyclopentene into ChemicalTool Reaction for route exploration.

Related targets

Similar compounds

Ethenylcyclopropane Ethylidenecyclopropane Isoprene Unii-A5if861oq5

Browse the full target catalog

References & tools

ChemicalTool Reaction — AI retrosynthesis with optional library evidence.
PubChem — compound identifiers and structure depictions (NIH/NCBI).
Related: AiZynthFinder / synthesis planning literature for computer-aided retrosynthesis.