Sulfur dioxide

from source

O2S · 64.07 g/mol

sulfurous acid anhydride · sulfurous oxide · sulfurous anhydride · Fermenicide liquid

What is Sulfur dioxide?

The sharp smell of a struck match, the preservative that keeps dried apricots orange, and the sulfite on a wine label. Volcanoes emit it by the megatonne. Found in wine. from source

CategoryEveryday chemistry

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Fig. 1 · 2D structure RDKit

SMILESO=S=O

Where you'll find it

Winewhat else is in it →

Curated by MoleculeFinder from source

Toxicity & hazards

DangerCompressed gasCorrosiveToxicIrritantHealth hazardH280, H314, H318, H319, H331, H370, H372from source

Sources & methodology

PubChem CID: 1119
Wikidata: Q5282
Structure: PubChem → RDKit
Everyday relationships: MoleculeFinder editorial curation
Data refreshed: September 13, 2026

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