Isoamyl alcohol

from source

C5H12O · 88.15 g/mol

Isopentyl alcohol · Isopentanol · Isobutylcarbinol · Fusel oil

What is Isoamyl alcohol?

A fusel alcohol yeast makes alongside ethanol, and a big part of what makes whisky and rum smell of more than just alcohol. Found in wine, beer, and spirits. from source

CategoryFood & flavor

Chemical familyAlcohols

LeaderboardsBiggest Deadliest

Fig. 1 · 2D structure RDKit

SMILESCC(C)CCO

Where you'll find it

Winewhat else is in it →Beerwhat else is in it →Spiritswhat else is in it →

Curated by MoleculeFinder from source

The dose makes the poison inferred

A reported rat oral LD50 for Isoamyl alcohol is 1,300 mg/kg, the dose lethal to half the animals tested. Scaled by body mass alone:

your weight154 lb

91.0 g

a median lethal dose scaled to 154 lb (91,000 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

1,300 mg/kg · low toxicity · LD50 rat oral from source

The dose lens above scales this to a body weight.

2 more reported values

3,400 mg/kgLD50 · oral · rabbit
3,970 mg/kgLD50 · dermal · rabbit

DangerFlammableCorrosiveIrritantHealth hazardH226, H302, H303, H313, H315, H318, H319, H332, H335, H336, H370from source

Keep roaming

Where Isoamyl alcohol leads

Sources & methodology

PubChem CID: 31260
Wikidata: Q223101
Structure: PubChem → RDKit
LD50: PubChem
Similar molecules: MoleculeFinder fingerprint similarity
Everyday relationships: MoleculeFinder editorial curation
Data refreshed: October 19, 2026

How MoleculeFinder sources and labels its data