SHEET /m/biotin · PubChem CID 171548 · CAS 58-85-5 · REV 2026.07
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Biotin from source
C10H16N2O3S · 244.31 g/mol
d-biotin · vitamin H · Vitamin B7 · Bioepiderm
chemical compound
CategoryNutrient
TypeVitamin
Chemical familyCarboxylic Acids
Fig. 1 · 2D structure RDKit
C1[C@H]2[C@@H]([C@@H](S1)CCCCC(=O)O)NC(=O)N2
Where you'll find it
Not yet mapped to everyday foods or products.
The dose makes the poison inferred
A reported mouse oral LD50 for Biotin is 10,000 mg/kg, the dose lethal to half the animals tested. Scaled by body mass alone:
700.0 g
a median lethal dose scaled to 154 lb (700,000 mg)
“The dose makes the poison” is a cross-species estimate shown as neutral science, not a threshold anyone should act on. Real toxicity depends on the person, not body mass alone.
Toxicity & hazards
Toxicity · LD50
10,000 mg/kg · very low toxicity · LD50 mouse oral from source
The dose lens above scales this to a body weight.
Keep roaming
Where Biotin leads
Relatedcomputed