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EC number: 200-315-5
CAS number: 57-13-6
In the background paper prepared by Branbeck
and Lammer (2006) for the German UBA, the results fom an
Inter-laboratory transferability test of the zebrafish embryo toxicity
test were presented. The 96 -hour LC50 results from the three
laboratories were similar (21010, 19280 and 22890 mg urea/L) resulting
in a mean of 21060 mg urea/L for the FET test.
The results from this test are considered
relevant and reliable for the risk assessment.
96 -h LC50 Danio rerio FET: 21060 mg urea/L
(result from and inter-laboratory ring test).
There are further acute fish studies with
various freshwater fish species available. All relevant and reliable
studies confirm that urea has a low toxicity to fish.
Data for marine species are not available.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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