Basic information
- Name:
Ethylenediaminetetraacetic acid disodium salt
- CAS No.:
139-33-3
- Molecular Structure:

- Formula:
- C10H14N2Na2O8
- Molecular Weight:
- 336.24
- Deleted CAS:
- 104244-09-9|1892-64-4|37341-71-2|42615-28-1|69772-70-9
- Synonyms:
- Mavacid ED 4;Metaquest B;Perma Kleer Di Crystals;Sequestrene Na2;TW 204;Triplex III;Versene disodium salt;Versonol 120;Chelaplex III;Chelaton III;Clewat N;Complexon III;Disodium(ethylenedinitrilo)tetraacetate;Disodium EDTA;Disodium ethylenediamine-N,N,N',N'-tetraacetate;Disodiumversene;Dissolvine Na2;Dissolvine Na2S;
- EINECS:
- 205-358-3
- Density:
- 1.01 g/mL at 25 °C
- Melting Point:
- 248 °C (dec.)(lit.)
- Solubility:
- water: clear, colorless
- Appearance:
- white crystalline solid
- Hazard Symbols:
Xn- Risk Codes:
- 36/38-36/37/38-22
- Safety Description:
- 26-36-37/39 Details
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Chemistry
Molecule structure of Ethylenediaminetetraacetic acid disodium salt (CAS NO.139-33-3):

IUPAC Name: Disodium 2-[carboxymethyl-[2-[carboxymethyl-(2-oxido-2-oxoethyl)amino]ethyl]amino]acetate
Molecular Weight: 336.2063 g/mol
Molecular Formula: C10H14N2Na2O8
Melting Point: 248 °C (dec.)(lit.)
Flash Point: 325.2 °C
Enthalpy of Vaporization: 99.5 kJ/mol
Boiling Point: 614.2 °C at 760 mmHg
Vapour Pressure: 1.15E-16 mmHg at 25 °C
Storage Temp.: 2-8 °C
Water Solubility: clear, colorless
H-Bond Donor: 2
H-Bond Acceptor: 10
Rotatable Bond Count: 9
Exact Mass: 336.054555
MonoIsotopic Mass: 336.054555
Topological Polar Surface Area: 161
Heavy Atom Count: 22
Canonical SMILES: C(CN(CC(=O)O)CC(=O)[O-])N(CC(=O)O)CC(=O)[O-].[Na+].[Na+]
InChI: InChI=1S/C10H16N2O8.2Na/c13-7(14)3-11(4-8(15)16)1-2-12(5-9(17)18)6-10(19)20;;/h1-6H2,(H,13,14)(H,15,16)(H,17,18)(H,19,20);;/q;2*+1/p-2
InChIKey: ZGTMUACCHSMWAC-UHFFFAOYSA-L
EINECS: 205-358-3
Product Categories: INORGANIC & ORGANIC CHEMICALS
Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intraperitoneal | 260mg/kg (260mg/kg) | Nippon Yakurigaku Zasshi. Japanese Journal of Pharmacology. Vol. 52, Pg. 126S, 1956. | |
| mouse | LD50 | intravenous | 56mg/kg (56mg/kg) | U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. Vol. NX#03781, | |
| mouse | LD50 | oral | 2050mg/kg (2050mg/kg) | Nippon Yakurigaku Zasshi. Japanese Journal of Pharmacology. Vol. 52, Pg. 126S, 1956. | |
| rabbit | LD50 | intravenous | 47mg/kg (47mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD | Nippon Yakurigaku Zasshi. Japanese Journal of Pharmacology. Vol. 52, Pg. 113, 1956. |
| rabbit | LD50 | oral | 2300mg/kg (2300mg/kg) | Nippon Yakurigaku Zasshi. Japanese Journal of Pharmacology. Vol. 52, Pg. 113, 1956. | |
| rat | LD50 | oral | 2gm/kg (2000mg/kg) | Federation Proceedings, Federation of American Societies for Experimental Biology. Vol. 27, Pg. 465, 1968. |
Consensus Reports
Reported in EPA TSCA Inventory. EPA Genetic Toxicology Program.
Safety Profile
Hazard Codes:
Xn
Risk Statements: 36/38-36/37/38-22
R36/38:Irritating to eyes and skin.
R36/37/38:Irritating to eyes, respiratory system and skin.
R22:Harmful if swallowed.
Safety Statements: 26-36-37/39
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36:Wear suitable protective clothing.
S37/39:Wear suitable gloves and eye/face protection.
WGK Germany: 2
RTECS: AH4410000
Poison by intraperitoneal and intravenous routes. Moderately toxic by ingestion. Experimental teratogenic and reproductive effects. Mutation data reported. The calcium disodium salt of EDTA is used as a chelating agent in treating lead poisoning. When heated to decomposition it emits toxic fumes of NOx and Na2O.
Specification
Ethylenediaminetetraacetic acid disodium salt (CAS NO.139-33-3) is also named as (Ethylenedinitrilo)-tetraacetic acid disodium salt ; Edta disodium ; AI3-18049 ; CBC 50152966 ; CCRIS 3658 ; Cheladrate ; Chelaplex III ; Chelaton 3 ; Chelaton III ; Chelest 200 ; Chelest B ; Clewat N ; Complexon III ; DR-16133 ; Dinatrium ethylendiamintetraacetat ; Dinatrium ethylendiamintetraacetat [Czech] ; Diso-Tate ; Disodium (ethylenedinitrilo)tetraacetate ; Disodium (ethylenedinitrilo)tetraacetic acid ; Disodium EDTA ; Disodium diacid ethylenediaminetetraacetate ; Disodium dihydrogen ethylenediaminetetraacetate ; Disodium dihydrogen(ethylenedinitrilo)tetraacetate ; Disodium edathamil ; Disodium edetate ; Disodium edta, anhydrous ; Disodium ethylenediamine-N,N,N',N'-tetraacetate ; Disodium ethylenediaminetetraacetate ; Disodium ethylenediaminetetraacetic acid ; Disodium salt of EDTA ; Disodium sequestrene ; Ethylenediaminetetraacetate, disodium salt ; F 1 (VAN) ; F 1 (complexon) ; Kiresuto B ; N,N'-1,2-Ethanediylbis(N-(carboxymethyl)glycine) disodium salt ; NSC 2760 ; Perma kleer 50 crystals disodium salt ; Versene NA ; Versene Na2 ; Versonol 120 ; Zonon D . Ethylenediaminetetraacetic acid disodium salt (CAS NO.139-33-3) is white crystalline solid.

