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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Adsorption / desorption

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Description of key information

The estimated log Koc values are 3.58 (E-isomere) and 3.73 (Z-isomere); calculated for 55% E-isomere and 45% Z-isomere: 3.65. 

Key value for chemical safety assessment

Koc at 20 °C:
4 467

Additional information

The adsorption test (Bodsch_2009) performed according to OECD 121 and GLP was rated with RL=1 (reliable without restrictions) and used as key study. The estimated log Koc of SymHelios® 1031 is 3.65 (55% E-isomer; 45% Z-isomere). According to the McCall classification scheme of soil mobility potential SymHelios® 1031 is classified from slight mobile (isomere 1 Koc = 3776) to immobile (isomere 2 Koc = 5342).