---
type: threshold
id: 1-3-dichloro-5-5-dimethyl-hydantoin
asset: workplace-exposure-limits
title: "1,3-Dichloro-5,5-dimethyl hydantoin — 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: "1,3-Dichloro-5,5-dimethyl hydantoin | 118-52-5 | - | 0.2 | - |"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "1,3-Dichloro-5,5-dimethyl hydantoin"
cas_number: "118-52-5"
pel_mgm3: "0.2"
verified: true
---
**Substance:** 1,3-Dichloro-5,5-dimethyl hydantoin

**CAS No.:** 118-52-5

**PEL (mg/m³):** 0.2

> 1,3-Dichloro-5,5-dimethyl hydantoin | 118-52-5 | - | 0.2 | - |

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