Thiamine Mononitrate
Thiamine Mononitrate is a tier 1 form of Thiamine (Vitamin B1), used in 1,957 on-market products and providing 81.1% elemental thiamine (vitamin b1) by weight.
1,957
on-market products
tier 1
quality tier
81.1%
elemental fraction
Basis: thiamine cation MW 265.36 / thiamine mononitrate MW 327.36 (confirmed PubChem formula)
Why this tier: Same rationale as HCl -- bioequivalent; preferred for fortification for stability (non-hygroscopic), not superior bioavailability.
Source: EFSA feed-additive dossier assessments, PMC12035548/PMC11979709