xwinorb - 9-8-2005 at 15:21
I was trying to find the structural formula for EDDA, I was looking for ethylenediammonium diacetate. Instead I found something similar, the diacetic
acid, that seems to be also called EDDA.
Is this correct ? Which one is called EDDA ? Both ?
Blind Angel - 9-8-2005 at 17:35
Diacetate is the diacetic ester so it's both the same thing
xwinorb - 9-8-2005 at 19:14
I agree the ester and the diacetate are the same thing, but they are NOT the same as the organic acid.
The one I found is the diacetic acid, CAS 5657-17-0. I could not find the CAS of the diacetate ( or ester ). I think is a case of both having the same
nickname of EDDA.
Nicodem - 14-8-2005 at 00:26
ethylenediamine diacetic acid is either
HOOC-CH2-NH-CH2-CH2-NH-CH2-COOH
or (less likely) its positional isomer
H2N-CH2-CH2-N(CH2-COOH)2
while ethylenediammonium diacetate is the acetate salt (and not ester!) of ethylenediamine and I doubt it is comercialy available:
H2N-CH2-CH2-NH2 × 2CH3COOH
Completely different compounds.
Since when one uses compound "nicknames" to search for them in catalogues or chemical supliers? 
Blind Angel - 14-8-2005 at 10:06
So dumb from me, when i wrote that i told myself that there was something wrong with this answer but i couldn't figure it off so i left it like
that, sorry, dumb error and so easy to see.