---
type: threshold
id: p-phenylene-diamine
asset: workplace-exposure-limits
title: "p-Phenylene diamine — 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: "p-Phenylene diamine | 106-50-3 | - | 0.1 | X |"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "p-Phenylene diamine"
cas_number: "106-50-3"
pel_mgm3: "0.1"
verified: true
---
**Substance:** p-Phenylene diamine

**CAS No.:** 106-50-3

**PEL (mg/m³):** 0.1

> p-Phenylene diamine | 106-50-3 | - | 0.1 | X |

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