Thiamine hydrochloride

CAS 67-03-8

Thiamine hydrochloride is vitamin B1, added to flour, cereals and rice. In many countries flour fortification with thiamine is mandatory.

Where it is and isn’t permitted

Status of Thiamine hydrochloride by jurisdiction. Every jurisdiction this site covers is listed, including those where the substance does not appear.
JurisdictionStatusScope and limitsCitation
United StatesFood and Drug AdministrationPermitted21 CFR 184.1875retrieved 2026-09-07
Codex AlimentariusCodex Alimentarius Commission / JECFANot listedDoes not appear on this jurisdiction’s permitted list. That is not the same as being prohibited.

What it is made from

Produced by chemical synthesis. The hydrochloride salt is used because it is stable and dissolves readily.

  • Vegan
  • Vegetarian
CAS registry number
67-03-8
InChIKey
DPJRMOMPQZCRJU-UHFFFAOYSA-M
PubChem
CID 6202

Every name it appears under

66 recorded names. A label may use any of them.

CAS registry number

  • 67-03-8
  • 7492-70-8

As it appears in regulation

  • Thiamine hydrochloride

Other names

  • (1-butoxy-1-oxopropan-2-yl) butanoate
  • Aneurine hydrochloride
  • Apate drops
  • Beatine
  • Bedome
  • Begiolan
  • Benerva
  • Bequin
  • Berin
  • Betabion hydrochloride
  • Betalin S
  • Bethiazine
  • Beuion
  • Bevitex
  • Bevitine
  • Bevitol
  • Biamine
  • Bithiamin
  • Biuno
  • Bivatin
  • Bivita
  • Butyl-O-butyryllactate
  • Clotiamina
  • Eskapen
  • Eskaphen
  • FEMA No. 3322
  • Hybee
  • Metabolin
  • Slowten
  • Thiadoxine
  • Thiamin chloride
  • Thiamin dichloride
  • Thiamin hydrochloride
  • Thiamina HCI
  • Thiamine chloride hydrochloride
  • Thiamine dichloride
  • Thiamine HCL
  • Thiamine hydrochloride
  • THIAMINE HYDROCHLORIDE injection, solution
  • thiamine(2+) dichloride
  • Thiamine, monohydrochloride
  • Thiamini hydrochloridum
  • Thiaminium chloride
  • Thiaminium chloride hydrochloride
  • Thiaminum hydrochloricum
  • Thiamol
  • Thiavit
  • thymine hydrochloride
  • Tiamidon
  • Tiaminal
  • Tyvera
  • Vit B1
  • Vit b1 thiamin
  • Vitamin b(sub 1) hydrochloride
  • Vitamin B1 hydrochloride
  • Vitaneuron

Systematic names

  • (1-butoxy-1-oxopropan-2-yl) butanoate
  • (5-((5-(2-hydroxyethyl)-4-methyl-1,3-thiazol-3-ium-3-yl)methyl)-2-methylpyrimidin-4-yl)azanium;dichloride
  • 2-[3-[(4-amino-2-methylpyrimidin-5-yl)methyl]-4-methyl-1, 3-thiazol-3-ium-5-yl]ethanol chloride hydrochloride
  • 3-((4-Amino-2-methyl-5-pyrimidinyl)methyl)-5-(2-hydroxyethyl)-4-m-ethylthiazolium chloride, monohydrochloride
  • 3-(4-Amino-2-methylpyrimidin-5-ylmethyl)-5-(2-hydroxyethyl)-4-methylthiazolium chloride monohydrochloride
  • Thiazolium, 3-((4-amino-2-methyl-5-pyrimidinyl)methyl)-5-(2-hydroxyethyl)-4-methyl-, chloride, hydrochloride (1:1:1)
  • Thiazolium, 3-((4-amino-2-methyl-5-pyrimidinyl)methyl)-5-(2-hydroxyethyl)-4-methyl-chloride, monohydrochloride

Hazard reference values

No reference value for this substance in the sources we hold.

Evidence and how bodies read it

Studies, and the differing conclusions regulators drew from them, are curated by hand rather than machine-read, and none has been written for this substance yet.

Sources for this page

  • ecfr retrieved 2026-09-07

Full licence terms and publisher details on Sources. How this page is built and updated: Method.

Machine-readable:/api/v1/additives/thiamine-hydrochloride.json