EDDS

EDDS
Names
	IUPAC name Ethylenediamine-N,N′-disuccinic acid
Identifiers
CAS Number	20846-91-7 ;
3D model (JSmol)	Interactive image;
ChemSpider	109992 ; 9489961 2-[(2-{[(1S)-1-Carboxyethyl]amino}ethyl)amino] ; 8283888 (2R)-2-[(2-{[(1R)-1-Carboxyethyl]amino}ethyl)amino] ; 435376 (2S)-2-[(2-{[(1S)-1-Carboxyethyl]amino}ethyl)amino] ;
MeSH	N,N'-ethylenediamine+disuccinic+acid
PubChem CID	123395; 11314994 2-[(2-{[(1S)-1-Carboxyethyl]amino}ethyl)amino]; 10108362 (2R)-2-[(2-{[(1R)-1-Carboxyethyl]amino}ethyl)amino]; 497266 (2S)-2-[(2-{[(1S)-1-Carboxyethyl]amino}ethyl)amino]; 46218600 (2S)-2-[(2-{[(1R)-1-Carboxyethyl]amino}ethyl)amino];
UNII	5WK2FGJ113 ;
CompTox Dashboard (EPA)	DTXSID80860260 DTXSID1051852, DTXSID80860260 ;
	InChI InChI=1S/C10H16N2O8/c13-7(14)3-5(9(17)18)11-1-2-12-6(10(19)20)4-8(15)16/h5-6,11-12H,1-4H2,(H,13,14)(H,15,16)(H,17,18)(H,19,20) Key: VKZRWSNIWNFCIQ-UHFFFAOYSA-N ;
	SMILES O=C(O)CC(NCCNC(CC(=O)O)C(=O)O)C(=O)O;
Properties
Chemical formula	C10H16N2O8
Molar mass	292.244 g·mol−1
Density	1.44 g mL−1
Melting point	220 to 222 °C (428 to 432 °F; 493 to 495 K)
Acidity (pKa)	2.4
Basicity (pKb)	11.6
Thermochemistry
Std enthalpy of; formation (ΔfH⦵298)	−1.9541 to −1.9463 MJ mol−1
Std enthalpy of; combustion (ΔcH⦵298)	−4.2755 to −4.2677 MJ mol−1
Related compounds
Related alkanoic acids	EDTA
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Ethylenediamine-N,N'-disuccinic acid (EDDS) is an aminopolycarboxylic acid. It is a colourless solid that is used as chelating agent that may offer a biodegradable alternative to EDTA, which is currently used on a large scale in numerous applications.