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EC number: 476-160-4
CAS number: 54807-34-0
Two aquatic toxicity studies were carried
out on NaDMH: Short term toxicty to Daphnia and Toxicity to
The NaDMH study carried out on Daphnia gave
a 48 hour EC50 of greater than 100 mg/L. Correspondingly the No Observed
Effect Concentration was 100 mg/L. The effect of NaDMH on the
respiration of activated sewage sludge gave a 3-hour EC50 of 2200 mg/L.
The NOEC after 3 hours exposure was 320 mg/L.
The remaining aquatic toxicity studies were
conducted on the analogue chemical DMH.
A study is available which was performed
with rainbow trout according to EPA Guideline 72-1. DMH was tested at a
nominal concentration of 1000 mg/L . The measured concentration of DMH
was 972.2 mg/L. No mortalities occurred. The LC50 was therefore
determined to be > 972.2 mg/L.
As previously stated all but two of these
studies have been performed on DMH (Dimethyl Hydantoin) and have been
used for read-across purposes. A summary of data for read-across of
NaDMH with DMH is given in Section 13.
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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