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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

bioaccumulation in aquatic species: fish
Type of information:
Adequacy of study:
key study
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model, but not (completely) falling into its applicability domain, with adequate and reliable documentation / justification
Please see the corresponding QSAR Prediction Reporting Format (QPRF) attached to this IUCLID record.
Justification for type of information:
Estimation of the bioaccumulation factor in fish using BCFBAF v3.02. Please find the QSAR Model Reporting Format (QMRF) and the corresponding QSAR Prediction Reporting Format (QPRF) attached to this IUCLID record.
Principles of method if other than guideline:
BCFBAF v3.02 prediction for the partition coefficient.
GLP compliance:
Specific details on test material used for the study:
Route of exposure:
Justification for method:
minimised test method used to support BCF estimates based on QSAR
Key result
75.96 L/kg
other: wet weight
Remarks on result:
other: Results based on QSAR data

Summary Results:

Log BCF (regression-based estimate): 1.881 (BCF = 75.96 L/kg wet-wt)

Biotransformation Half-Life (days) : 2.2 (normalized to 10 g fish)

Log BAF (Arnot-Gobas upper trophic): 2.95 (BAF = 896 L/kg wet-wt)

BCF (Bioconcentration Factor):

Log Kow (estimated) : 5.44

Log Kow (experimental): not available from database

Log Kow used by BCF estimates: 5.44

Equation Used to Make BCF estimate:

Log BCF = 0.6598 log Kow - 0.333 + Correction

Correction(s): Value

Alkyl chains (8+ -CH2- groups) -1.374

Estimated Log BCF = 1.88 (BCF = 75.96 L/kg wet-wt)

Description of key information

The BCF of the test substance is calculated to be 75.96 L/kg wwt (BCFBAF v3.02 estimate)

Key value for chemical safety assessment

BCF (aquatic species):
75.96 L/kg ww

Additional information

A bioconcentration factor using BCFBAF v3.02 was generated to estimate the potential bioaccumulation of the test substance.