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EC number: 231-810-4
CAS number: 7747-35-5
No study on the long-term effects of EDHO to fish is available.
rapidly hydrolyzed to AEPD and formaldehyde, with half-lives of less
than 4 hours at pH 4, 7, and 9 at 25 ºC. As
a result of rapid hydrolysis and low potential for continuous input in
the aquatic environment based on use patterns, potential for chronic
exposure to EDHO is expected to be low. Bioaccumulation
potential is expected to be minimal based on a reported log Kow of -0.32.
In addition, acute testing clearly
indicated that fish were the least sensitive of the three trophic levels
to EDHO exposure. The
fish acute values ranged from 130 to 244 mg/L while the aquatic
invertebrate acute values ranged from 16.9 to 138 mg/L and the algal
acute values ranged from 1.08 to 2.09 mg/L. Chronic
values were determined for algal species and the most sensitive
invertebrate (Daphnia magna). The
NOEC for the daphnid chronic study was determined to be 5 mg/L, an order
of magnitude greater than the most sensitive trophic level (ErC50 for
freshwater green alga of 0.513 mg/L. Since
fish are vertebrates as well as the least acutely sensitive trophic
level, it was neither scientifically nor ethically justified to
determine a chronic value.
According to REACH Annex IX
requirements, long-term toxicity testing shall only be considered when
the chemical safety assessment indicates the need for further
investigations. Hence, long-term testing can be waived for EDHO.
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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