SHEET /m/nicotinamide · PubChem CID 936 · CAS 98-92-0 · REV 2026.07
Nicotinamide from source
C6H6N2O · 122.12 g/mol
niacinamide · 3-Pyridinecarboxamide · pyridine-3-carboxamide · Nicotinic acid amide
chemical compound: amide form of vitamin B3
Fig. 1 · 2D structure RDKit
C1=CC(=CN=C1)C(=O)N
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 Nicotinamide is 2,500 mg/kg, the dose lethal to half the animals tested. Scaled by body mass alone:
“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
2,500 mg/kg · very low toxicity · LD50 mouse oral from source
The dose lens above scales this to a body weight.
3 more reported values
- 3,500 mg/kgLD50 · oral · rat
- 1,680 mg/kgLD50 · other · rat
- 2,050 mg/kgLD50 · other · mouse
Keep roaming