Wego now has HEDP available in Brazil

Wego is glad to announce the availability of 1-Hydroxyethylidene-1, 1-Diphosphonic Acid (HEDP) CAS 2809-21-4 at our new office in northeastern Brazil


We maintain strategic inventories of 1-Hydroxyethylidene-1, 1-Diphosphonic Acid (HEDP) with the best distribution practices, as well as products and service of the highest quality at our new office in northeastern Brazil.

HEDP CAS 2809-21-4 is an organophosphate corrosion inhibitor produced by the reaction between acetic acid and phosphorus trichloride. 

This product was first produced in 1966 and has been widely used in the medical industry since 1977. Since then, a wide variety of uses have been found, mainly for water treatment and as an antioxidant.


Get a quote of HEDP


+55 (12) 3207-5532



  • Etidronic acid CAS 2809-21-4 is a bisphosphonate drug that prevents osteoclastic bone resorption; used for the prevention and treatment of osteoporosis. Etidronic acid is a first-generation bisphosphonate similar to clodronic acid and tiludronic acid.
  • HEDP CAS 2809-21-4 is an excellent water hardness stabilizer and chelating agent that can be found in both household and industrial applications. These properties allow the chemical to produce exceptional results in the production of detergent and the treatment of cooling water.
  • Due to its chemical nature, HEDP CAS 2809-21-4 traps heavy metal ions used in the preparation of cosmetics. By trapping metal ions, preservatives keep oxidized compounds in a stable state, thus increasing the durability of cosmetic products.



HEDP, Phosphanate, Etidronic Acid, HDEPA, OEDFK, 2809-21-4.



Water Treatment & Pool ChemicalsAntioxidantsChelantsDyes



Water Treatment



PRODUCT NAME                HEDP

CAS #                                    2809-21-4

EINECS #                              220-552-8



Please get in touch with our sales team


+55 (12) 3207-5532

HEDP, Phosphanate, Etidronic Acid, HDEPA, OEDFK, 2809-21-4.


Posted on October 4, 2022