Tetrapotassium Etidronate
AKA “14860-53-8, Tetrapotassium (1-hydroxyethylidene)bisphosphonate, EINECS 238-928-5, CVI36ET72E, Phosphonic acid, (1-hydroxyethylidene)bis-, tetrapotassium salt, EINECS 267-956-0, POTASSIUM ETIDRONATE, (1-Hydroxyethylidene)diphosphonic acid, Ethane-1-hydroxy-1, 1-diphosphonic acid
Ingredient
Ingredient Facts
Tetrapotassium etidronate
AKA: 14860-53-8, Tetrapotassium (1-hydroxyethylidene)bisphosphonate, EINECS 238-928-5, CVI36ET72E, Phosphonic acid, (1-hydroxyethylidene)bis-, Tetrapotassium salt, EINECS 267-956-0, (1-Hydroxyethylidene)diphosphonic acid, Ethane-1-hydroxy-1, 1-diphosphonic acid
Ingredient · Chelating · EWG: 4
Synthetic
Chelating Agent
Not Clean
Tetrapotassium (1-hydroxyethylidene)bisphosphonate
Formula
C2H4K4O7P2
Mol. Weight
358.39
CAS #
14860-53-8
Form
Powder
State
Liquid; Other Solid
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
Binds metal ions
Traditional Use
Synthetic chelating agent developed in the 20th century for cosmetic formulations. Created to prevent mineral buildup and enhance product stability with no traditional background.
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
EWG
4
CIR
Safe as used
Pregnancy
Caution
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUpermitted
JAPANpermitted
CANADApermitted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR