Cyclopentadiene

For Cyclopentadiene, cas no. is 542-92-7; pel (ppm) is 75; pel (mg/m³) is 200, verified against its source on 2026-08-05.

What the source says

Cyclopentadiene | 542-92-7 | 75 | 200 | - |

— osha.gov, retrieved 2026-08-05

Sources

• osha.govhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
• dir.ca.govhttps://www.dir.ca.gov/title8/5155.html

Last verified against source: 2026-08-05. Scheduled for re-check by: 2027-08-05. This page as Markdown · OKF concept · full dataset as JSON.