---
title: "Isovaleric acid (503-74-2): exposure limits and sampling"
url: https://analyt-mtc.com/tools/hazard-search/isovaleric-acid-503-74-2/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/isovaleric-acid-503-74-2/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/isovaleric-acid-503-74-2/
---

Hazard search

# Isovaleric acid

CAS number

503-74-2

Also known as

3-Methylbutanoic acid · 3-Methylbutyric acid · β-Methylbutyric acid

## UK workplace exposure limits

Our data hold no UK limit for this substance.

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **Non-agency** / Isovaleric acid by Colorimetric analysis | Direct-reading | Gastec detector tube |  | [810-81](https://analyt-mtc.com/catalog/product/gastec-colour-gas-detector-tubes/#part-gst-81) / [810-81L](https://analyt-mtc.com/catalog/product/gastec-colour-gas-detector-tubes/#part-gst-81l) |

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)