Thiamine

from source

C12H17N4OS+ · 265.36 g/mol

thiaminium · VIB · Benerva · Bequin

What is Thiamine?

Vitamin B1. Its absence causes beriberi, the disease that appeared when milling stripped the husk off rice and took the vitamin with it. Found in bread and breakfast cereal. from source

CategoryNutrient

Chemical familyAlcohols Amines

LeaderboardsBiggest Deadliest

Fig. 1 · 2D structure RDKit

SMILESCC1=C(SC=[N+]1CC2=CN=C(N=C2N)C)CCO

Where you'll find it

Breadwhat else is in it →Breakfast cerealwhat else is in it →

Curated by MoleculeFinder from source

Relative acute toxicity from source

Animal study data · LD50

Reported LD50: 3,710 mg/kg · very low toxicity
Species: rat
Route: oral

An LD50 describes acute toxicity under experimental conditions and is not a safe or dangerous dose for a person.

Toxicity & hazards

Toxicity · LD50

3,710 mg/kg · very low toxicity · LD50 rat oral from source

5 more reported values

8,224 mg/kgLD50 · oral · mouse
83 mg/kgLD50 · iv · mouse
188 mg/kgLD50 · iv · rat
301 mg/kgLD50 · other · mouse
560 mg/kgLD50 · other · rat

Sources & methodology

PubChem CID: 1130
Wikidata: Q83187
Structure: PubChem → RDKit
LD50: PubChem
Everyday relationships: MoleculeFinder editorial curation
Data refreshed: October 19, 2026

How MoleculeFinder sources and labels its data