Disodium Etidronate
AKA “Etidronate disodium, 7414-83-7, Sodium etidronate, Disodium ethydronate, Sodium ethidronate, Sodium ethydronate, Etidronic Acid Disodium Salt, Turpinal 2NZ, Disodium ethanol-1, 1-diphosphonate”
Ingredient
Ingredient Facts
Disodium etidronate
AKA: Etidronate disodium, 7414-83-7, Disodium ethydronate, Sodium ethidronate, Sodium ethydronate, Etidronic Acid Disodium Salt, Turpinal 2NZ, Disodium ethanol-1, 1-diphosphonate
Ingredient · Chelating · EWG: 4
Synthetic
Chelating Agent
Not Clean
Disodium dihydrogen (1-hydroxyethylidene)bisphosphonate
Formula
C2H6Na2O7P2
Mol. Weight
249.99
CAS #
7414-83-7
Form
Powder
See origin →
Functions
Chelating
Grabs onto metal ions in water that would destabilize the formula. Keeps your product from going bad or changing color.
Removes Metal Ions
Antioxidant Protection
Binds metal ions
Traditional Use
Synthetic bisphosphonate compound developed in the mid-20th century for industrial water treatment before adoption in cosmetics as a chelating and stabilizing agent.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
Disodium Etidronate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Tetrasodium Etidronate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Tetrasodium Etidronate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
What Is Tetrasodium Etidronate and How Is It Related to Formaldehyde?
Liou YL, Boyd A, Hylwa SA
Dermatitis : contact, atopic, occupational, drug, 2018
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR