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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

Additional information

Adsorption / desorption:

Predicted data of adsorption endpoint for the target chemical 3, 7-dimethylocta-2, 6-dienenitrile (Cas no. 5146-66-7) reviewed to summarize as follows:  

From predicted model EPI suite 2016 indicate that the soil adsorption coefficient (Koc) value of chemical 3, 7-dimethylocta-2, 6-dienenitrile is estimated to be 420.8 L/kg (log KOC = 2.624) by means of MCI method at 25 deg.C.

Whereas from chemspider predicted database the soil adsorption coefficient i.e Koc value of test substance 3, 7-dimethylocta-2, 6-dienenitrile was estimated to be 2345.62 L/Kg i.e Log Koc= 3.370 at pH 5.5 and 7.4.

Based on the above both predicted Koc values indicate that the test substance 3, 7-dimethylocta-2, 6-dienenitrile (Cas no. 5146-66-7) has moderate tendency of sorption to soil and sediment and therefore have slow migration potential to groundwater.