SHEET /m/cinnamaldehyde · PubChem CID 637511 · CAS 104-55-2 · REV 2026.07
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Cinnamaldehyde from source
C9H8O · 132.16 g/mol
Zimtaldehyde · Cinnamal · 3-Phenylacrylaldehyde · 2-Propenal, 3-phenyl-
chemical compound
CategoryFood & flavor
Chemical familyAromatics
Fig. 1 · 2D structure RDKit
C1=CC=C(C=C1)/C=C/C=O
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 Cinnamaldehyde is 200 mg/kg, the dose lethal to half the animals tested. Scaled by body mass alone:
14.0 g
a median lethal dose scaled to 154 lb (14,000 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
200 mg/kg · moderately toxic · LD50 mouse oral from source
The dose lens above scales this to a body weight.
3 more reported values
- 3,400 mg/kgLD50 · oral · rat
- 75 mg/kgLD50 · iv · mouse
- 200 mg/kgLD50 · other · mouse
WarningIrritantH312, H315, H317, H319, H335, H401, H412from source
Keep roaming
Where Cinnamaldehyde leads
Relatedcomputed