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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Bioaccumulation: aquatic / sediment

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Administrative data

Link to relevant study record(s)

Description of key information

Three different structures of possible components of the Cyclohexanol, 4-C11-12-alkyl, branched were used for the calculation of the BCF. There were used C11 and C12-alkyl structures with different branching. The BCFBAF version 3.01 programme of the EPI Suite software (EPIWEB 4.1) was used to predict the BCF of the structures using the smiles codes.  Based on a Arnot-Gobas method upper trophic the BCF were between 561.5 and 798.5. Based on the regression-based method the BCF were between 2186 and 11890 L/kg wet-weight.  Because the Arnot-Gobas upper trophic model takes also into account metabolism of the substance by the organism it is lower but also much more realistic. Therefore it is concluded that the substance Cyclohexanol, 4-C11-12-alkyl, branched is not bioaccumulative.

Key value for chemical safety assessment

Additional information

Three different structures of possible components of the Cyclohexanol, 4-C11-12-alkyl, branched were used for the calculation of the BCF. There were used C11 and C12-alkyl structures with different branching. The BCFBAF version 3.01 programme of the EPI Suite software (EPIWEB 4.1) was used to predict the BCF of the structures using the smiles codes. Based on a Arnot-Gobas method upper trophic the BCF were between 561.5 and 798.5. Based on the regression-based method the BCF were between 2186 and 11890 L/kg wet-weight. Because the Arnot-Gobas upper trophic model takes also into account biotransormation rate constant of the substance by the organism it is lower but also much more realistic. Therefore it is concluded that the substance Cyclohexanol, 4-C11-12-alkyl, branched is not bioaccumulative.