Calcium carbonate

from source

CCaO3 · 100.09 g/mol

Aeromatt · Albaglos · Aragonite · Calcicoll

What is Calcium carbonate?

Chalk, limestone, eggshell, and seashell, all the same compound. Ground up, it is the calcium in an antacid tablet and the white in white paint. from source

CategoryNutrient

LeaderboardsBiggest Deadliest

Fig. 1 · 2D structure RDKit

SMILESC(=O)([O-])[O-].[Ca+2]

Where you'll find it

Toothpastewhat else is in it →

Curated by MoleculeFinder from source

Relative acute toxicity from source

Animal study data · LD50

Reported LD50: 6,450 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

6,450 mg/kg · very low toxicity · LD50 rat oral from source

2 more reported values

310 mg/kgLD50 · oral · mouse
6,450 mg/kgLD50 · oral · mouse

Keep roaming

Where Calcium carbonate leads

Sources & methodology

PubChem CID: 10112
Wikidata: Q23767
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