Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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: 203-919-7 | CAS number: 111-90-0
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
Leopomis macrochirus. 96hr LC50 >10000mg/l, 21400mg/l
Menidia beryllina. 96hr LC50 >10000mg/l
Carassius auratus 24hr LC50 >5000mg/l , 96hr LC50=20800mg/l
Salmo gairdneri 96hr LC50=13400mg/l
Pimephales promelas 96hr LC50 >10000mg/l, 11775mg/l
Gambussia affinis 96hr LC50=14010mg/l
Ictalarus punctatus 96hr LC50=6010mg/l
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 6 010 mg/L
Marine water fish
Marine water fish
- Effect concentration:
- 10 000 mg/L
Additional information
There is comprehensive data on the toxicity of 2 -(2 -ethoxethoxy)ethanol to fish covering multiple species and both fresh and salt water. The most reliable study is one that used a flow through methodology to examine the 96h acute toxicity in 6 freshwater species. In all but one of these, the LC50 was found to be in the approximate range 10000 to 20,000mg/l. The one exception was Chanel Catfish where the LC50 was established as 6010mg/l. All other 96 hour studies were carried out using static testing. All established LC50's greater than 10,000mg/l, including in a single saltwater species.
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.
