Last reviewed May 2026 · 1 min read

Is Sodium Thiosulfate (E539) vegan?

Also known as: E539

E-number: E539

Vegan

Suitable for a vegan diet.

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In short

Yes — 100% mineral-based.

01 · The basics

What is Sodium Thiosulfate (E539)?

A mineral salt used as an antioxidant and sequestrant.

02 · The source

Where it comes from

100% mineral-based.

Frequently asked

FAQ

Is E539 vegan?

Yes, it is mineral-based.

Commonly found in

Specialty food processing
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