# Benzidine; 4,4′-diaminobiphenyl, see Section 5209 — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side

For Benzidine; 4,4′-diaminobiphenyl, see Section 5209, substance is Benzidine; 4,4′-diaminobiphenyl, see Section 5209, verified against its source on 2026-08-05.

- **Substance:** Benzidine; 4,4′-diaminobiphenyl, see Section 5209

## What the source says

> 92875 | S | Benzidine; 4,4′-diaminobiphenyl, see Section 5209

## Source

- https://www.dir.ca.gov/title8/5155.html

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/).