---
title: "Naphthylthiourea (86-88-4): exposure limits and sampling"
url: https://analyt-mtc.com/tools/hazard-search/naphthylthiourea-86-88-4/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/naphthylthiourea-86-88-4/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/naphthylthiourea-86-88-4/
---

Hazard search

# Naphthylthiourea

CAS number

86-88-4

Also known as

1-(1-Naphthyl)thiourea · ANTU · Naphthylthiourea (ANTU) · α-Naphthyl thiourea

## UK workplace exposure limits

Our data hold no UK limit for this substance.

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **NIOSH S276** | Active (pump) |  | HPLC | [225-17-01](https://analyt-mtc.com/catalog/product/ptfe-polytetrafluoroethylene-filters/#part-225-17-01) / [225-2050LF](https://analyt-mtc.com/catalog/product/sureseal-cassette-blanks/#part-225-2050lf) / [225-1](https://analyt-mtc.com/catalog/product/aluminium-respirable-dust-cyclone/#part-225-1) / [225-27](https://analyt-mtc.com/catalog/product/disposable-parallel-particle-impactors/#part-225-27) |

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/)