# Regulation (EC) No 2003/2003 of the European Parliament and of the Council of 13 October 2003 relating to fertilisers (Text with EEA relevance), Division E.3.1: Chelating agents


Acids, or sodium, potassium or ammonium salts of:
For information only.
No
Designation
Alternative designation
Chemical formula
CAS number of the acid
1
Ethylenediaminetetraacetic acid
EDTA
C 10 H 16 O 8 N 2
60-00-4
2
2-hydroxyethylethylenediaminetriacetic acid
HEEDTA
C 10 H 18 O 7 N 2
150-39-0
3
diethylenetriaminepentaacetic acid
DTPA
C 14 H 23 O 10 N 3
67-43-6
4
ethylenediamine- N,N’-di[(ortho-hydroxyphenyl)acetic acid]
[o,o] EDDHA
C 18 H 20 O 6 N 2
1170-02-1
5
ethylenediamine- N-[(ortho-hydroxyphenyl)acetic acid]- N’-[(para-hydroxyphenyl)acetic acid]
[o,p] EDDHA
C 18 H 20 O 6 N 2
475475-49-1
6
ethylenediamine- N,N’-di[(ortho-hydroxy-methylphenyl)acetic acid]
[o,o] EDDHMA
C 20 H 24 O 6 N 2
641632-90-8
7
ethylenediamine- N-[(ortho-hydroxy-methylphenyl)acetic acid]- N’-[(para-hydroxy-methylphenyl)acetic acid]
[o,p] EDDHMA
C 20 H 24 O 6 N 2
641633-41-2
8
ethylenediamine- N,N’-di[(5-carboxy-2-hydroxyphenyl)acetic acid]
EDDCHA
C 20 H 20 O 10 N 2
85120-53-2
9
ethylenediamine- N,N’-di[(2-hydroxy-5-sulfophenyl)acetic acid] and its condensation products
EDDHSA
C 18 H 20 O 12 N 2 S 2 + n*(C 12 H 14 O 8 N 2 S)
57368-07-7 and 642045-40-7
10
Iminodisuccinic acid
IDHA
C 8 H 11 O 8 N
131669-35-7
11
N,N’-di(2-hydroxybenzyl)ethylenediamine-N,N’-diacetic acid
HBED
C 20 H 24 N 2 O 6
35998-29-9
12
[S,S]-Ethylenediaminedisuccinic acid
[S,S]-EDDS
C 10 H 16 O 8 N 2
20846-91-7

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Source: https://www.legislation.gov.uk/eur/2003/2003/division/E./division/E.3./division/E.3.1. (the official version)
Page: https://openlegislation.uk/eu-regulation-2003-2003/division-E./division-E.3./division-E.3.1.
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.