Ethylenebis(oxyethylenenitrilo)tetraacetic acid
- CAS No.
- 67-42-5
- Chemical Name:
- Ethylenebis(oxyethylenenitrilo)tetraacetic acid
- Synonyms
- EGTA;EGTAZIC ACID;1,2-bis(2-dicarboxymethylaminoethoxy)ethane;ethylenedioxybis(ethyleneamino)tetraaceticacid;AEGT;GEDTA;GIETA;ebonta;Egtazic;CHEL-DE
- CBNumber:
- CB7671001
- Molecular Formula:
- C14H24N2O10
- Molecular Weight:
- 380.35
- MDL Number:
- MFCD00004291
- MOL File:
- 67-42-5.mol
- MSDS File:
- SDS
| Product description | Number | Pack Size | Price |
| OmniPur EGTA -CAS 67-42-5 - Calbiochem | 4100-OP | 50g | $260 |
| EGTA, Molecular Biology Grade - CAS 67-42-5 - Calbiochem | 324626 | 25g | $201 |
| Titriplex® VI for analysis | 1.08435 | 25g | $453 |
| Titriplex® VI for analysis | 1.08435 | 100g | $648 |
| Ethylene glycol-bis(2-aminoethylether)-N,N,N′,N′-tetraacetic acid BioUltra, for molecular biology, ≥99.0% (T) | 03777 | 10g | $213 |
| More product size | |||
| Melting point | 241 °C (dec.)(lit.) |
|---|---|
| Boiling point | 507.99°C (rough estimate) |
| bulk density | 450kg/m3 |
| Density | 1.2838 (rough estimate) |
| refractive index | 1.4590 (estimate) |
| storage temp. | room temp |
| solubility | 0.1 M NaOH: 0.1 M at 20 °C, clear, colorless |
| form | Crystalline Powder |
| pka | 1.47±0.10(Predicted) |
| color | White |
| biological source | synthetic (organic) |
| Water Solubility | slightly soluble |
| Merck | 14,3529 |
| BRN | 1717370 |
| CAS DataBase Reference | 67-42-5(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| FDA UNII | 526U7A2651 |
| EPA Substance Registry System | Ethylenebis(oxyethylenenitrilo)tetraacetic acid (67-42-5) |
| Absorption | cut-off at 263nm in 1 M NaOH at 0.1M |
| UNSPSC Code | 12352106 |
| NACRES | NA.77 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H303 | |||||||||
| Precautionary statements | P270-P301+P312-P403-P501c | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 24/25-36-26 | |||||||||
| WGK Germany | 2 | |||||||||
| RTECS | AH3760000 | |||||||||
| TSCA | Yes | |||||||||
| HS Code | 29225000 | |||||||||
| Toxicity | LD50 orally in Rabbit: 3587 mg/kg | |||||||||
| NFPA 704 |
|
Ethylenebis(oxyethylenenitrilo)tetraacetic acid price More Price(53)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 4100-OP | OmniPur EGTA -CAS 67-42-5 - Calbiochem | 67-42-5 | 50g | $260 | 2025-07-31 | Buy |
| Sigma-Aldrich | 324626 | EGTA, Molecular Biology Grade - CAS 67-42-5 - Calbiochem | 67-42-5 | 25g | $201 | 2025-07-31 | Buy |
| Sigma-Aldrich | 1.08435 | Titriplex® VI for analysis | 67-42-5 | 25g | $453 | 2025-07-31 | Buy |
| Sigma-Aldrich | 1.08435 | Titriplex® VI for analysis | 67-42-5 | 100g | $648 | 2025-07-31 | Buy |
| Sigma-Aldrich | 03777 | Ethylene glycol-bis(2-aminoethylether)-N,N,N′,N′-tetraacetic acid BioUltra, for molecular biology, ≥99.0% (T) | 67-42-5 | 10g | $213 | 2025-07-31 | Buy |
Ethylenebis(oxyethylenenitrilo)tetraacetic acid Chemical Properties,Uses,Production
Description
Ethylenebis(oxyethylenenitrilo)tetraacetic acid is also named as Egtazic acid. It works as a chelating agent for the determination of calcium in the presence of magnesium.
Chemical Properties
White to slightly off-white powder
Uses
Pharmaceutic aid. EGTA.
Uses
Ethylene glycol-O,O'-bis(2-aminoethyl)-N,N,N',N'-tetraacetic acid is a chelating agent used for making complexes, especially for calcium ions, which help to determine calcium in the presence of magnesium. It can be used experimentally for treating animals possessing cerium poisoning. It is useful in the separation of thorium from monazite. It also acts as a buffer and is used in protein purification.
Uses
A chelating agent useful for the determination of calcium in the presence of magnesium.
Definition
ChEBI: A diether that is ethylene glycol in which the hydrogens of the hydroxy groups have been replaced by 2-[bis(carboxymethyl)amino]ethyl group respectively.
reaction suitability
reagent type: chelator
Biological Activity
Calcium chelator; protects against cell death caused by nitric oxide-induced calcium influx into nerve cells.
Safety Profile
Poison by intraperitoneal route. Moderately toxic by ingestion. When heated to decomposition it emits toxic fumes of NOx. See also GLYCOL ETHERS.
storage
Room temperature
Purification Methods
Dissolve EGTA in aqueous NaOH, precipitate it by adding aqueous HCl, wash it with water and dry at 100o in vacuo.[Beilstein 4 IV 217.]
Ethylenebis(oxyethylenenitrilo)tetraacetic acid Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shaanxi Dideu Medichem Co. Ltd | +86-29-81148696 +86-17392712697 | 1022@dideu.com | China | 3994 | 58 |
| Wuhan Fortuna Chemical Co., Ltd | +86-027-59207850 +86-13986145403; | info@fortunachem.com | China | 6000 | 58 |
| Hebei Chuanghai Biotechnology Co,.LTD | +86-13131129325 | sales1@chuanghaibio.com | China | 5249 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +8615531151365 | mina@chuanghaibio.com | China | 18126 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20134 | 58 |
| Hebei Zhuanglai Chemical Trading Co.,Ltd | +8613343047651 | admin@zlchemi.com | China | 3692 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21610 | 55 |
| Nanjing ChemLin Chemical Industry Co., Ltd. | 025-83697070 | product@chemlin.com.cn | CHINA | 3009 | 60 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29843 | 58 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28172 | 58 |
View Lastest Price from Ethylenebis(oxyethylenenitrilo)tetraacetic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2025-12-17 | Ethylenebis(oxyethylenenitrilo)tetraacetic acid
67-42-5
|
0.99 | RongNa Biotechnology Co.,Ltd | ||||
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2025-12-17 | Ethylenebis(oxyethylenenitrilo)tetraacetic acid
67-42-5
|
US $0.00-0.00 / KG | 1KG | 99% | 3500kg/month | WUHAN FORTUNA CHEMICAL CO., LTD | |
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2025-12-15 | EGTA
67-42-5
|
US $31.00 / mg | 99.49% | 10g | TargetMol Chemicals Inc. |
-

- Ethylenebis(oxyethylenenitrilo)tetraacetic acid
67-42-5
- 0.99
- RongNa Biotechnology Co.,Ltd
-

- Ethylenebis(oxyethylenenitrilo)tetraacetic acid
67-42-5
- US $0.00-0.00 / KG
- 99%
- WUHAN FORTUNA CHEMICAL CO., LTD
-

- EGTA
67-42-5
- US $31.00 / mg
- 99.49%
- TargetMol Chemicals Inc.





