N-(2-羟乙基)乙二胺三乙酸

Description

N-(2-Hydroxyethyl)ethylenediaminetriaceticacid · CAS 150-39-0 · C10H18N2O7. UNII R79J91U341. Melting Point: 288 °C (hydate); Melting Point: 159 °C; Melting Point: 288 °C.

Identification

CAS Registry Number	150-39-0
PubChem CID	8773
Molecular formula	C10H18N2O7
IUPAC name	2-[2-[bis(carboxymethyl)amino]ethyl-(2-hydroxyethyl)amino]acetic acid
UNII (FDA)	R79J91U341

Computed Descriptors

Molecular Weight	278.26
XLogP3	-6.2
Hydrogen Bond Donor Count	4
Hydrogen Bond Acceptor Count	9
Rotatable Bond Count	11
Exact Mass	278.11140092
Monoisotopic Mass	278.11140092
Topological Polar Surface Area	139
Heavy Atom Count	19
Formal Charge	0

Physical & Chemical Properties

Melting Point	288 °C (hydate)
Melting Point	159 °C
Melting Point	288 °C
Solubility	In water, 480 g/L at 20 °C
Density	1.285
Density	1.285 @25 °C

Physical description & handling notes

• Liquid
• Solid; [Hawley] White odorless powder; [MSDSonline]
• Odorless crystalline powder; [MSDSonline]
• SOLID
• Flash point: 100 °C (closed cup)
• Insoluble in most organic solvents

Regulatory Status

Regulatory & Food Contact	FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS TRISODIUM HEDTA CIR / INCI: Cosmetic ingredients (HEDTA) -> CIR (Cosmetic Ingredient Review) CIR / INCI: Opacifying; Chelating; Absorbent; Viscosity controlling; Bulking
GHS notification summary	0.2% (2 / 938)

GHS Hazard Classification

GHS notification summary	0.2% (2 / 938)
Reported hazard statements	H302 (30.3%), H315 (61.2%), H318 (77.6%), H319 (22.1%), H400 (47.3%), H410 (47.3%), H335 (61.4%)

Documented Uses

• Used as chelating agent and analytical reagent; [HSDB]
• Used as chelating agent for trivalent iron (pH 7-10); Resulting complex chelates with other metals and alkaline earth ions; [Merck Index]
• ... Hydroxyethyl Ethylenediamine Triacetic Acid (HEDTA) and its salt, Trisodium HEDTA, are substituted amines. These ingredients function as chelating agents in cosmetic formulations by combining with polyvalent metal cations in solution to form soluble ring structures.
• As chelating agent for trivalent iron from pH 7 to pH10. Forms strong 1:1 ferric chelates. The iron chelates formed will then chelate other heavy metal or alkaline earth ions.
• Cosmetics -> Opacifying; Chelating; Absorbent; Viscosity controlling; Bulking
• Not Known or Reasonably Ascertainable

Synonyms

N-(2-Hydroxyethyl)ethylenediaminetriacetic acid; HEDTA; Heedta; Versenol; Versenol 120; Hydroxyethylethylenediaminetriacetic acid; (2-Hydroxyethyl)ethylenediaminetriacetic acid; 2-Hydroxyethylenediamine triacetate; Caswell No. 487B; N-(Hydroxyethyl)ethylenediaminetriacetic acid; BRN 1804795; HSDB 5651; EINECS 205-759-3; Glycine, N-[2-[bis(carboxymethyl)amino]ethyl]-N-(2-hydroxyethyl)-; (N-Hydroxyethylethylenedinitrilo)triacetic acid; EPA Pesticide Chemical Code 039108

Frequently Asked Questions

What are the CAS number and molecular formula of N-(2-Hydroxyethyl)ethylenediaminetriaceticacid?

CAS 150-39-0; molecular formula C10H18N2O7; molecular weight — g/mol.

What other names is N-(2-Hydroxyethyl)ethylenediaminetriaceticacid known by?

N-(2-Hydroxyethyl)ethylenediaminetriacetic acid, HEDTA, Heedta, Versenol, Versenol 120, Hydroxyethylethylenediaminetriacetic acid.

What is the regulatory status of N-(2-Hydroxyethyl)ethylenediaminetriaceticacid?

Documented regulatory listings: FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS; TRISODIUM HEDTA; CIR / INCI: Cosmetic ingredients (HEDTA) -> CIR (Cosmetic Ingredient Review).

Is N-(2-Hydroxyethyl)ethylenediaminetriaceticacid classified as hazardous?

0.2% of GHS notifications report no hazard classification (2 of 938).

What are the key physical properties of N-(2-Hydroxyethyl)ethylenediaminetriaceticacid?

Melting Point: 288 °C (hydate); Melting Point: 159 °C; Melting Point: 288 °C; Solubility: In water, 480 g/L at 20 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.