Thiamine

Skeletal formula and ball-and-stick model of the cation in thiamine
Clinical data
Pronunciation	/ˈθaɪ.əmɪn/ THY-ə-min
Synonyms	Vitamin B1, aneurine, thiamin
AHFS/Drugs.com	Monograph
License data	US DailyMed: Thiamine US FDA: Thiamine
Routes of administration	by mouth, IV, IM
Drug class	vitamin
ATC code	cation: A11DA01 (WHO)
Legal status
Legal status	US: OTC
Pharmacokinetic data
Bioavailability	3.7% to 5.3% Template:Medical citation needed
Elimination half-life	1.8d[better source needed]
Identifiers
IUPAC name 2-[3-[(4-amino-2-methylpyrimidin-5-yl)methyl]-4-methyl-1,3-thiazol-3-ium-5-yl]ethanol
CAS Number	cation: 70-16-6 Y 67-03-8 (Cl-.HCl) Cl- salt: 59-43-8  Y
PubChem CID	cation: 1130
PubChem SID	Cl- salt: 6042
DrugBank	cation: DB00152
ChemSpider	cation: 1098
UNII	cation: 4ABT0J945J Cl- salt: X66NSO3N35 Y
KEGG	cation: C00378
ChEBI	cation: CHEBI:18385
ChEMBL	cation: ChEMBL1547
E number	{{#property:P628}}
ECHA InfoCard	{{#property:P2566}}
Chemical and physical data
Formula	C12H17N4OS+
Molar mass	265.36 g·mol−1
3D model (JSmol)	cation: Interactive image
SMILES cation: Cc2ncc(C[n+]1csc(CCO)c1C)c(N)n2
InChI cation: InChI=1S/C12H17N4OS/c1-8-11(3-4-17)18-7-16(8)6-10-5-14-9(2)15-12(10)13/h5,7,17H,3-4,6H2,1-2H3,(H2,13,14,15)/q+1 Y Key:JZRWCGZRTZMZEH-UHFFFAOYSA-N

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Thiamine (or thiamin) is vitamin B₁. It is a water-soluble vitamin of the B complex. Its phosphate derivatives take part in many cellular processes. Thiamine pyrophosphate (TPP) is a coenzyme in the catabolism of sugars and amino acids.

also it can be found in Food and Manufactured Dietary supplements also in Medications Foods that provide Thiamine include whole grains, Legume

Lack of thiamine causes beriberi.