SHEET /m/sodium-benzoate · PubChem CID 517055 · CAS 532-32-1 · REV 2026.07
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Sodium benzoate from source
C7H5NaO2 · 144.1 g/mol
Sobenate · Antimol · Benzoic acid, sodium salt · sodium;benzoate
chemical compound
CategoryFood & flavor
Chemical familyAromatics
Fig. 1 · 2D structure RDKit
C1=CC=C(C=C1)C(=O)[O-].[Na+]
Where you'll find it
Not yet mapped to everyday foods or products.
The dose makes the poison inferred
A reported rabbit oral LD50 for Sodium benzoate is 2,000 mg/kg, the dose lethal to half the animals tested. Scaled by body mass alone:
140.0 g
a median lethal dose scaled to 154 lb (140,000 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
2,000 mg/kg · low toxicity · LD50 rabbit oral from source
The dose lens above scales this to a body weight.
2 more reported values
- 3,450 mg/kgLD50 · oral · rat
- 2,306 mg/kgLD50 · other · mouse
WarningIrritantH319from source
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