Diammonium EDTA

AKA: 20824-56-0, Diammonium ethylenediaminetetraacetate, Edta diammonium salt, Diammonium dihydrogen ethylenediaminetetraacetate, DISSOLVINE AM 2-45, Diammonium ethylenediaminetetraacetic acid, Glycine
Synthetic
Antioxidant
Chelating Agent
Not Clean
Diammonium dihydrogen ethylenediaminetetraacetate
Formula
C10H22N4O8
Mol. Weight
326.30
CAS #
20824-56-0
Form
Liquid
State
Liquid
Functions
Antioxidant
Fights free radicals — the unstable molecules from UV, pollution, and stress that break down collagen and cause premature aging.
Chelating
Grabs onto metal ions in water that would destabilize the formula. Keeps your product from going bad or changing color.
Neutralizes Free Radicals
Traditional Use
Synthetic chelating agent developed in the 1930s-1940s as a replacement for natural chelators. Used in cosmetics to bind trace metals and improve product preservation and stability.
EWG
4
CIR
Reviewed by CIR
Pregnancy
Yes
CIR Safety Findings
Not Phototoxic
all-shades-safe
Concentration Guide
Industry max
Industry typically uses up to 4.0% in leave-on products (217 products reported). Source: CIR Safety Assessment (CIR Seq 607).
Regulatory Status
USAunder review
EUrestricted
JAPANrestricted
CANADArestricted
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing
🛡️Safety-assessed2 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR