# a-Chloroacetophenone (Phenacyl chloride) — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side

For a-Chloroacetophenone (Phenacyl chloride), cas no. is 532-27-4; pel (ppm) is 0.05; pel (mg/m³) is 0.3, verified against its source on 2026-08-05.

- **Substance:** a-Chloroacetophenone (Phenacyl chloride)
- **CAS No.:** 532-27-4
- **PEL (ppm):** 0.05
- **PEL (mg/m³):** 0.3

## What the source says

> a-Chloroacetophenone (Phenacyl chloride) | 532-27-4 | 0.05 | 0.3 | - |

## Source

- https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1

Last verified: 2026-08-05. Review by: 2027-08-05.
Part of [US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side](https://referencesource.org/workplace-exposure-limits/).