Agent Name

Trisodium nitrilotriacetate monohydrate

Alternative Name

Nitrilotriacetic acid trisodium salt monohydrate

CAS Number




Major Category

Other Uses


Glycine, N,N-bis(carboxymethyl)-, trisodium salt, monohydrate; N,N-Bis(carboxymethyl)glycine trisodium salt monohydrate; NTA sodium hydrate; Nitriloacetic acid trisodium salt monohydrate; Nitrilotriacetic acid trisodium salt monohydrate; Nitrilotriacetic acid trisodium salt, monohydrate; Acetic acid, nitrilotri-, trisodium salt, monohydrate; Nitrilotriacetic acid, trisodium salt monohydrate; Nitrilotriacetic acid trisodium monohydrate; [ChemIDplus] NTA sodium monohydrate; Nitrilo-2,2',2-triacetic acid trisodium salt monohydrate; [ICSC] Hampshire NTA Na3 crystals; Perma Kleer NTA Na3 crystals; Sodium nitrilotriacetate monohydrate; Trilon A92; Trisodium salt of nitrilotriacetic acid, monohydrate; [CAMEO]


Chelating Agents


White solid; [ICSC] White crystalline powder; [Alfa Aesar MSDS]


Used as a chelating and sequestering agent and builder in synthetic detergents; [NTP]


A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; Possible human carcinogen; [ICSC] Positive evidence of carcinogenicity in rats produced at one laboratory, while another produced equivocal evidence in rats and negative evidence in mice; [NTP] Causes changes in renal tubules and changes in calcium oral repeated-dose studies of rats; [RTECS] A strong eye irritant; Harmful by ingestion; Suspected carcinogen; [Alfa Aesar MSDS] See "Trisodium nitrilotriacetate."

Adverse Effects

Skin Burns

IARC Carcinogen

Possible Carcinogen

Links to Other NLM Databases
Toxicity Information


Chemical Information

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Other Information

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