Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

Scenedesmus subspicatus.  96hr EC0>100mg/l (OECD201)
Pseudokirchneriella subcapitata: 72hr EC50=1101mg/l (similar to OECD201)
Scenedesmus quadricauda: 8 day EC3 =1000mg/l (protocol: no data)
Microcystis aeruginosa: 8 day EC3=53mg/l (protocol: no data)

Key value for chemical safety assessment

EC50 for freshwater algae:
1 101 mg/L

Additional information

There sufficient data available on the toxicity of 2 -(2 -butoxyethoxy)ethanol to algae. There is a guideline and GLP limit test study available which confirms that the substance is of low toxicity. There is also a published study caried out to a modern guideline that contains a measured EC50 value (Aruoja, 2014). Whilst the GLP data is sufficient for classification and labelling, the published study is used as a based to derive the critical value for this end point, an EC50 of 1100mg/l.