Substance Information

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REACH Registration data can be found in the new ECHA CHEM database. The old ‘Registered substance factsheets’ will be available on this web site during the transition period but have not been updated since 19 May 2023. More


Substance Infocard


1,2-dihydropyridazine-3,6-dione, compound with 2,2'-iminodiethanol (1:1)

EC / List no.: 227-213-3

CAS no.: 5716-15-4

Mol. Formula:

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Key datasets


Regulatory context

Here you can find all of the regulations and regulatory lists in which this substance appears, according to the data available to ECHA. This substance has been found in the following regulatory activities (directly, or inheriting the regulatory context of a parent substance):

REACH - Registration, Evaluation, Authorisation and Restriction of Chemicals Regulation
  • Substances indicated, in 2009, as being intended to be registered by at least one company in the EEA.
PIC - Prior Informed Consent Regulation
Previous Legislations
  • Substances listed in the EINECS, ELINCS, or NLP inventories.
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Substance names and other identifiers

Regulatory process names
1,2-dihydropyridazine-3,6-dione, compound with 2,2'-iminodiethanol (1:1)
EC Inventory, PIC, Other
1,2-dihydropyridazine-3,6-dione, compound with 2,2'-iminodiethanol (1:1)
PIC, Pre-Registration process, Other
IUPAC names
1,2,3,6-tetrahydropyridazine-3,6-dione; 2-[(2-hydroxyethyl)amino]ethan-1-ol
Other identifiers
2933 99 80
PIC, Other
Combined Nomenclature Code
2933 99 80
Combined Nomenclature Number
EC Inventory, PIC, Pre-Registration process, Other
CAS number
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Group parents

This substance has been identified as member of the following groups of substances:

Results list is empty
Name EC / List no. CAS no. Association
[No public or meaningful name is available] - - Official source
Maleic hydrazide salts other than choline, potassium and sodium salts - - Expert judgement (ECHA)