Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 811-683-7
CAS number: 1799707-26-8
Nominal test concn (% SS at 100 mg/L)
Mean measured concn (mg/L)
SS – saturated solution
A 96-hour acute toxicity study with common carp (Cyprinus carpio) was
conducted in accordance with the OECD test guideline 203 and in
compliance with GLP.
A limit test was performed with a single test concentration of 100%
saturated solution of a nominal 100 mg/L solution, under static
conditions. The mean measured test concentration was determined to be
Under the conditions of the test, the 96-hour LC50 (mortality) was
determined to be >1.3 mg/L, based on mean measured concentrations.
Due to the very low solubility of
4,4’-(1-phenylethane-1,1-diyl)bis(heptyloxybenzene) in the test medium,
concentration levels that may be toxic for fish could not be reached.
The laboratory study report stated that the test item was not completely
soluble in the test medium at the loading rate initially prepared.
This acute toxicity study is considered acceptable and satisfies the
guideline requirement for short-term toxicity to fish.
In a reliable (Klimisch 1) 96-hour acute toxicity study, common carp (Cyprinus
carpio) were exposed to a single test concentration (limit test)
under static conditions in accordance with the OECD test guideline 203
and in compliance with GLP.
Under the conditions of the test, the LC50 (mortality) was determined to
be >1.3 mg/L, based on mean measured concentrations.
The EC50 value is greater than the limit of solubility of the test
The test validity criteria were met and there were no significant
deviations noted to affect the integrity of the study. This
acute toxicity study is considered acceptable and satisfies the
guideline requirements for a short-term toxicity study to fish.
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.
Welcome to the ECHA website. This site is not fully supported in Internet Explorer 7 (and earlier versions). Please upgrade your Internet Explorer to a newer version.
Do not show this message again