---
title: "Ethyl O-(p-nitrophenyl) phenylphosphonothionate (2104-64-5)"
url: https://analyt-mtc.com/tools/hazard-search/ethyl-o-p-nitrophenyl-phenylphosphonothionate-2104-64-5/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/ethyl-o-p-nitrophenyl-phenylphosphonothionate-2104-64-5/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/ethyl-o-p-nitrophenyl-phenylphosphonothionate-2104-64-5/
---

Hazard search

# Ethyl O-(p-nitrophenyl) phenylphosphonothionate

CAS number

2104-64-5

Also known as

EPN · Ethyl O-(p-nitrophenyl) phenylphosphonothionate (EPN)

## UK workplace exposure limits

Our data hold no UK limit for this substance.

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **NIOSH 5012** / EPN by GC / [Method document (opens in a new tab)](http://www.cdc.gov/niosh/docs/2003-154/pdfs/5012.pdf) | Active (pump) | Glass fibre filter in cassette | GC-FPD | [225-709](https://analyt-mtc.com/catalog/product/glass-fibre-depth-filters/#part-225-709) / [225-1](https://analyt-mtc.com/catalog/product/aluminium-respirable-dust-cyclone/#part-225-1) |

Methods and limits as published by their agencies and summarised by SKC; check the current method and the limit that applies to you before sampling.

Source: [SKC Ltd (UK), Hazard Search, used with SKC's permission (opens in a new tab)](https://www.skcltd.com/hazard-search.html); [SKC Inc. (USA), Sampling Guides, used with SKC's permission (opens in a new tab)](https://international.skcinc.com/sampling-guides/)