Is Thiamine Mononitrate vegan?

Thiamine Mononitrate

Vegan

Thiamine mononitrate is the nitrate salt form of thiamine (Vitamin B1), produced commercially by chemical synthesis. It is used to fortify foods and as a dietary supplement, and is more stable than thiamine hydrochloride.

Also known as Aneurine Mononitrate, Thiamin Mononitrate, Vitamin B1, Vitamin B1 Mononitrate
E number E101
CAS number 532-43-4
EC number 208-537-4
Last reviewed 28 May 2026

Classifications are made to the best of our knowledge based on available scientific and regulatory sources. We cannot guarantee the accuracy of every entry, errors in the sources we draw from can always occur. This tool also cannot account for cross-contamination, which depends entirely on individual suppliers and producers. If you believe a classification is incorrect, you can report an issue.