SHEET /m/sodium-benzoate · PubChem CID 517055 · CAS 532-32-1 · REV 2026.07
Sodium benzoate
from sourceC7H5NaO2 · 144.1 g/mol
Antimol · Benzoan sodny · Benzoate of soda · Benzoate sodium
What is Sodium benzoate?
A preservative in soft drinks and salad dressings. Combined with vitamin C in the same bottle it can slowly form traces of benzene. Found in hot sauce, soft drinks, tonic water, and processed snacks. from source
Fig. 1 · 2D structure RDKit
C1=CC=C(C=C1)C(=O)[O-].[Na+]Where you'll find it
Curated by MoleculeFinder from source
The dose makes the poison inferred
A reported rat oral LD50 for Sodium benzoate is 3,450 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
3,450 mg/kg · very low toxicity · LD50 rat oral from source
The dose lens above scales this to a body weight.
2 more reported values
- 2,000 mg/kgLD50 · oral · rabbit
- 2,306 mg/kgLD50 · other · mouse
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