T

Thiamine

IUPAC: 2-[3-[(4-amino-2-methylpyrimidin-5-yl)methyl]-4-methyl-1,3-thiazol-3-ium-5-yl]ethanol

C12H17N4OS+ Organic Compounds CAS 59-43-8
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Quick Reference
Formula / NotationC12H17N4OS+
CAS Number59-43-8
Molecular Weight265.36
Melting Point248 dec °C
Solubility500000 mg/L
AppearanceSolid with a slight odor; [HSDB] Crystals; [Avocado Research MSDS]
Also Known As2-[3-[(4-amino-2-methylpyrimidin-5-yl)methyl]-4-methyl-1,3-thiazol-3-ium-5-yl]ethanol; thiamin; vitamin B1; Aneurin; Antiberiberi factor; Betaxin; thiaminium; Bewon; thiamine(1+) ion; Betabion
CategoryOrganic Compounds

What is Thiamine?

Thiamine(1+) is a primary alcohol that is 1,3-thiazol-3-ium substituted by (4-amino-2-methylpyrimidin-5-yl)methyl, methyl and 2-hydroxyethyl groups at positions 3, 4 and 5, respectively. It has a role as a mouse metabolite, a Saccharomyces cerevisiae metabolite, an Escherichia coli metabolite and a human metabolite. It is a primary alcohol and a vitamin B1. It is a conjugate base of a thiamine(2+).

Formula & Notation

C12H17N4OS+

IUPAC Name: 2-[3-[(4-amino-2-methylpyrimidin-5-yl)methyl]-4-methyl-1,3-thiazol-3-ium-5-yl]ethanol

Other Names / Synonyms: 2-[3-[(4-amino-2-methylpyrimidin-5-yl)methyl]-4-methyl-1,3-thiazol-3-ium-5-yl]ethanol; thiamin; vitamin B1; Aneurin; Antiberiberi factor; Betaxin; thiaminium; Bewon; thiamine(1+) ion; Betabion

Properties & Characteristics

Appearance: Solid with a slight odor; [HSDB] Crystals; [Avocado Research MSDS]. Molecular formula: C12H17N4OS+. Molecular weight: 265.36 g/mol. Melting point: 248 dec °C. Solubility: 500000 mg/L. LogP: 1.

Physical Data

PropertyValue
Melting Point248 dec °C
Molecular Weight265.36
Solubility500000 mg/L
AppearanceSolid with a slight odor; [HSDB] Crystals; [Avocado Research MSDS]

Uses & Applications

Used as an industrial feedstock, solvent, pharmaceutical intermediate, flavoring agent, or chemical building block.

Safety Information

Flammable or irritant. Many organic compounds are flammable liquids or vapours. Keep away from ignition sources. Consult SDS for specific hazard data.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Thiamine
Formula C12H17N4OS+
CAS Number 59-43-8
Molecular Weight 265.36
Synonyms 2-[3-[(4-amino-2-methylpyrimidin-5-yl)methyl]-4-methyl-1,3-thiazol-3-ium-5-yl]ethanol; thiamin; vitamin B1; Aneurin; Antiberiberi factor; Betaxin; thiaminium; Bewon; thiamine(1+) ion; Betabion

Frequently Asked Questions

Thiamine(1+) is a primary alcohol that is 1,3-thiazol-3-ium substituted by (4-amino-2-methylpyrimidin-5-yl)methyl, methyl and 2-hydroxyethyl groups at positions 3, 4 and 5, respectively. It has a role as a mouse metabolite, a Saccharomyces cerevisiae metabolite, an Escherichia coli metabolite and a human metabolite. It is a primary alcohol and a vitamin B1. It is a conjugate base of a thiamine(2+).

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.