# methanesulfonic acid

> English word · Noun

## Definitions
1. The simplest organic sulfonic acid CH₃SO₂OH

## Etymology
From methane + sulfonic acid.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/methanesulfonic-acid