SHEET /m/butylated-hydroxytoluene · PubChem CID 31404 · CAS 128-37-0 · REV 2026.07

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Butylated hydroxytoluene

from source

C15H24O · 220.35 g/mol

BHT · Butylhydroxytoluene · Butyl hydroxy toluene · Popol

What is Butylated hydroxytoluene?

BHT, the antioxidant added to cereal packaging and processed fats to stop them going rancid. Butylated hydroxytoluene (C15H24O, 220 g/mol) is a phenolic compound found in everyday food and flavor. from source

CategoryFood & flavor

Chemical familyAromatics Phenols

LeaderboardsBiggest Deadliest

Fig. 1 · 2D structure RDKit

SMILESCC1=CC(=C(C(=C1)C(C)(C)C)O)C(C)(C)C

The dose makes the poison inferred

A reported rat oral LD50 for Butylated hydroxytoluene is 890 mg/kg, the dose lethal to half the animals tested. Scaled by body mass alone:

your weight154 lb

62.3 g

a median lethal dose scaled to 154 lb (62,300 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

890 mg/kg · low toxicity · LD50 rat oral from source

The dose lens above scales this to a body weight.

3 more reported values

650 mg/kgLD50 · oral · mouse
138 mg/kgLD50 · other · mouse
180 mg/kgLD50 · iv · mouse

DangerIrritantHealth hazardEnvironmentalH302, H313, H316, H317, H320, H361, H370, H373, H400, H410from source

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Where Butylated hydroxytoluene leads

Sources & methodology

PubChem CID: 31404
Wikidata: Q221945
Structure: PubChem → RDKit
LD50: PubChem
Similar molecules: MoleculeFinder fingerprint similarity
Data refreshed: October 19, 2026

How MoleculeFinder sources and labels its data