cyclopentadiene
Subject: CHEM / Chemical elements & compounds
| Language | Term |
| Arabic - AR | بنتادايين حلقي |
| DE - German | Cyclopentadien |
| EN - English | cyclopentadiene |
| ES - Spanish | cicliopentadieno |
| FR - French | cyclopentadiène |
| JA - Japanese | シクロペンタジエン |
| KO - Korean | 시클로펜타디엔 |
| PT - Portuguese | ciclopentadieno |
| RU - Russian | циклопентадиен |
| ZH - Chinese | 环戊二烯 |