---
type: threshold
id: a-chloroacetophenone-phenacyl-chloride
asset: workplace-exposure-limits
title: "a-Chloroacetophenone (Phenacyl chloride) — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
source_quote: "a-Chloroacetophenone (Phenacyl chloride) | 532-27-4 | 0.05 | 0.3 | - |"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "a-Chloroacetophenone (Phenacyl chloride)"
cas_number: "532-27-4"
pel_ppm: "0.05"
pel_mgm3: "0.3"
verified: true
---
**Substance:** a-Chloroacetophenone (Phenacyl chloride)

**CAS No.:** 532-27-4

**PEL (ppm):** 0.05

**PEL (mg/m³):** 0.3

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

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