Science & Engineering

Chemical Name Lookup (Formula ↔ Name)

Paste a formula like H2O or NaCl to get its name, or type a name to get the formula. It covers common acids, oxides, salts, and a few organics.

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Common name
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For study and estimation. Verify against authoritative data before relying on a result.
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Common values

FormulaCommon name
H2OWater
NaClTable salt
CO2Carbon dioxide
NH3Ammonia
CaCO3Calcium carbonate

Common questions

What is the chemical formula for table salt?

NaCl, sodium chloride. It is one sodium atom bonded to one chlorine atom.

What does NH3 stand for?

Ammonia, a compound of one nitrogen and three hydrogen atoms.

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