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Cosmetic ingredient (INCI)

Etidronic Acid

Used in cosmetic products as chelating. Etidronic Acid is an organic diphosphonic acid.

Allowed with restrictions

EU Cosmetics Regulation (EC) No 1223/2009, Annex III/53.

Annex III/53: (a) 1.5% (as etidronic acid) / (b) 0.2% (as etidronic acid)

The chemical behind this ingredient

Structure, properties, safety data and price information live on the chemical page.

Etidronic acid chemical structure, C2H8O7P2, CAS 2809-21-4
Etidronic acid
CAS 2809-21-4C2H8O7P2
171 suppliers
Etidronic acid

IUPAC name: (1-hydroxy-1-phosphonoethyl)phosphonic acid

  • 2D structure and identifiers
  • Measured and computed properties
  • GHS safety summary
  • Suppliers, prices and trade data

Etidronic Acid suppliers

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Frequently asked questions

What is Etidronic Acid used for in cosmetics?

Etidronic Acid is used in cosmetic products as chelating. Etidronic Acid is an organic diphosphonic acid.

Is Etidronic Acid restricted in cosmetics in the EU?

Etidronic Acid is listed in the annexes of EU Cosmetics Regulation (EC) No 1223/2009: Annex III/53 (allowed with restrictions). Annex III/53: (a) 1.5% (as etidronic acid) / (b) 0.2% (as etidronic acid) Always check the full annex entry for the conditions of use.

What is the CAS number of Etidronic Acid?

Etidronic Acid is listed with CAS number 2809-21-4 and EC number 220-552-8.

Where can I buy Etidronic Acid?

8 suppliers list Etidronic acid on CompoundList. Compare them below or post a buy request with your grade and quantity.