Vitamins
REACH
Vitamin B1 Thiamine
CAS Number
59-43-8
EC Number
200-425-3
What is Vitamin B1 Thiamine?
Thiamine (CAS 59-43-8), also known as Vitamin B1, is a water-soluble B-complex vitamin used as a nutritional supplement and fortification agent.
Where is Vitamin B1 Thiamine used?
- Pharmaceuticals: oral tablets, injectables, and multivitamin preparations targeting B1 deficiency
- Food: fortification of flour, breakfast cereals, and infant formula
- Animal feed: premixes for poultry, swine, and aquaculture
- Cosmetics: skincare products with B-vitamin complexes
- These applications support metabolic function and feed conversion.
Good to know: Thiamine chloride is the most commercially traded form, a stable salt suitable for industrial processing. Recognized grades include USP, BP, Ph. Eur., and FCC, covering pharmaceutical and food-grade procurement requirements.
Commercial specifications
- Primarily thiamine hydrochloride or thiamine mononitrate
- Bulk supply in kilogram and metric ton quantities
Other Names (Synonyms)
Thiamine|Thiamine(1+) chloride|Vitamin B1|2-[3-[(4-amino-2-methylpyrimidin-5-yl)methyl]-4-methyl-1,3-thiazol-3-ium-5-yl]ethanol
What are the physical properties of Vitamin B1 Thiamine?
Melting Point 248 °C (decomp)
Density 1.43 g/cm³
Color White to off-white
Form Solid
Refractive Index 1.5630 (estimate)
Log P -3.930 (est)