---
type: threshold
id: 1-butanethiol-see-butyl-mercaptan
asset: workplace-exposure-limits
title: "1-Butanethiol; see Butyl mercaptan — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.dir.ca.gov/title8/5155.html
source_quote: "109795 | | 1-Butanethiol; see Butyl mercaptan"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "1-Butanethiol; see Butyl mercaptan"
verified: true
---
**Substance:** 1-Butanethiol; see Butyl mercaptan

> 109795 | | 1-Butanethiol; see Butyl mercaptan

Source: <https://www.dir.ca.gov/title8/5155.html>