How toxic is Antimony?

The reported LD50 of Antimony is 7,000 mg/kg (rat, oral). An LD50 is an animal study measurement, not a dose for a person. Its GHS hazard label carries the signal word Danger and the hazard pictograms Toxic, Irritant, Health hazard and Environmental.

What kind of molecule is Antimony?

Antimony has the formula Sb and a molecular weight of 121.76 g/mol. MoleculeFinder files it under chemical elements, in the element & material group.

Antimony

Sb121.76 g/mol Calculated

Also called Sb.

A brittle metalloid used since antiquity as kohl eye paint and now mostly as a flame retardant in plastics and textiles. Element 51.

Sources and notes

The introductionfrom sourceMoleculeFinder curated
Other namesfrom sourceWikidataIts English label and aliases on Wikidata.
Formula and weightcomputedPubChem
2D drawingcomputedPubChem structure, drawn by RDKit

Where you encounter it

A pure element or an engineered material, rather than an ingredient in a product.

Sources and notes

The line abovefrom sourceMoleculeFinder curatedFrom the group the molecule belongs to.

Properties and sources

Calculated by PubChem

Molecular formula: Sb
Molecular weight: 121.76 g/mol

Measured LD50, HSDB via PubChem

7,000 mg/kg pure antimony, rat, oral

An LD50 is an animal study measurement, not a dose for a person.

Reported Hazard label (GHS), ECHA, HSDB via PubChem

Danger Toxic pictogram (GHS06), Irritant pictogram (GHS07), Health hazard pictogram (GHS08) and Environmental pictogram (GHS09); hazard statements H301, H302, H332, H351, H373, H401, H411

Groups it belongs to

Category: Element & material
Family: Chemical elements
Hazard classes: Acutely toxic, Irritant, Health hazard, Environmental hazard, GHS Danger

SMILES[Sb]

PubChem CID 5354495 · Wikidata Q1099 · InChIKey WATWJIUSRGPENY-UHFFFAOYSA-N · Data refreshed 2026-11-09

How MoleculeFinder sources and labels its data

Questions

What is Antimony?: A brittle metalloid used since antiquity as kohl eye paint and now mostly as a flame retardant in plastics and textiles. Element 51.
How toxic is Antimony?: The reported LD50 of Antimony is 7,000 mg/kg (rat, oral). An LD50 is an animal study measurement, not a dose for a person. Its GHS hazard label carries the signal word Danger and the hazard pictograms Toxic, Irritant, Health hazard and Environmental. from sourcefrom source
What kind of molecule is Antimony?: Antimony has the formula Sb and a molecular weight of 121.76 g/mol. MoleculeFinder files it under chemical elements, in the element & material group. from sourcefrom sourcefrom sourcefrom source
What else is Antimony called?: Antimony is also called Sb. from source

Sources and notes

Calculated valuescomputedPubChemComputed from the structure, so no laboratory conditions apply; complexity is PubChem's own structural score.
LD50from sourceHSDB via PubChem
Hazard labelfrom sourceECHA, HSDB via PubChemThe label combines these classifications.
ECHAfrom sourceAttributionSource: European Chemicals Agency, echa.europa.eu.
Data refreshedfrom sourceMoleculeFinder2026-11-09