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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

In the EU RAR (2008), it is concluded that, based on the available information a sound assessment of biodegradation is not possible, so as a worst-case 2,4,4-trimethylpentene has to be assessed as not biodegradable. The key and supporting study in this dossier support the characterisation of 2,4,4 -trimethylpentene as not readily biodegradable.

The BCF for 2,4,4 -trimethylpentene is 925 -3548 based on its log Kow of 5. 2,4,4 -trimethylpentene has a Henry's Law Constant of 282975 Pa.m3/mol, indicating that the substance would partition to the atmosphere. The Koc of 2,4,4 -trimethylpentene is 562, indicating that the substance is in the low to medium soil mobility classes.