---
type: threshold
id: antu-alpha-naphthylthiourea
asset: workplace-exposure-limits
title: "ANTU (alpha Naphthylthiourea) — 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: "ANTU (alpha Naphthylthiourea) | 86-88-4 | - | 0.3 | - |"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "ANTU (alpha Naphthylthiourea)"
cas_number: "86-88-4"
pel_mgm3: "0.3"
verified: true
---
**Substance:** ANTU (alpha Naphthylthiourea)

**CAS No.:** 86-88-4

**PEL (mg/m³):** 0.3

> ANTU (alpha Naphthylthiourea) | 86-88-4 | - | 0.3 | - |

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