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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

Additional information

We have used the SRTC (1996) study as the key study for short tem toxicity to fish, aquatic invertebrates and algae. It is also the key study for these endpoints in the EU RAR (2008) for 2,4,4 -trimethylpentene. Since the EU RAR was produced, a long term toxicity to aquatic invertebrates study has been conducted and this has been selected as key. All studies selected as key are GLP compliant and follow standard guidelines.

The most conservative value reported is a 96 hour LC50 of 0.58 mg/L for acute toxicity to fish and a 0.16 mg/L 21 day NOEC for chronic toxicity to aquatic invertebrates. This would result in a category 1 chronic hazard to the environment and the hazard statement 'very toxic to aquatic life with long lasting effects' in the classification and labelling assessment.