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SHEET /m/iodine · PubChem CID 807 · CAS 7553-56-2 · REV 2026.07

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Iodine

from source

I2 · 253.8089 g/mol

Jod · Eranol · Iosan superdip · Jood

What is Iodine?

The purple-vapour halogen the thyroid cannot work without, and the brown antiseptic tincture in a first aid kit. Found in fish and shellfish. from source

Chemical familyHalogenated
LeaderboardsBiggestDeadliest

Fig. 1 · 2D structure RDKit

SMILESII

Where you'll find it

Curated by MoleculeFinder from source

Relative acute toxicity from source

Animal study data · LD50

Reported LD50
14,000 mg/kg · very low toxicity
Species
rat
Route
oral

An LD50 describes acute toxicity under experimental conditions and is not a safe or dangerous dose for a person.

Toxicity & hazards

Toxicity · LD50

14,000 mg/kg · very low toxicity · LD50 rat oral from source

2 more reported values
  • 10,000 mg/kgLD50 · oral · rabbit
  • 22,000 mg/kgLD50 · oral · mouse
DangerToxicIrritantHealth hazardEnvironmentalH302, H312, H315, H317, H319, H330, H332, H335, H372, H400, H410from source

Sources & methodology

PubChem CID
807
Wikidata
Q2064483
Structure
PubChem → RDKit
LD50
PubChem
Everyday relationships
MoleculeFinder editorial curation
Data refreshed

How MoleculeFinder sources and labels its data