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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Reference
Endpoint:
bioaccumulation in aquatic species, other
Remarks:
aquatic organisms
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Justification for type of information:
Data is from authoritative databases
Qualifier:
according to guideline
Guideline:
other: as mentioned below
Principles of method if other than guideline:
Environmental bioconcentration factor of the test chemical was estimated using a logKow and a regression-derived equation.
GLP compliance:
not specified
Radiolabelling:
not specified
Vehicle:
not specified
Test organisms (species):
other: Aquatic organisms
Route of exposure:
aqueous
Test type:
not specified
Water / sediment media type:
natural water: freshwater
Reference substance (positive control):
not specified
Details on estimation of bioconcentration:
BASIS FOR CALCULATION OF BCF
- Result based on calculated logKow of: 4.09
Key result
Type:
BCF
Value:
28 dimensionless
Basis:
whole body w.w.
Calculation basis:
other: BCF value of test chemical was estimated using a logKow and a regression-derived equation.
Remarks on result:
other: Other details not known

According to a classification scheme, the BCF value of test chemical suggests the potential for bioconcentration in aquatic organisms is low.

Validity criteria fulfilled:
not specified
Conclusions:
The estimated BCF (bioaccumulation factor) of test chemical was determined to be 28 dimensionless.
Executive summary:

The bioaccumulation study was conducted for estimating the BCF (bioaccumulation factor) value of test chemical. The bioaccumulation factor (BCF) value was calculated using a logKow of 4.09 and a regression-derived equation. The estimated BCF (bioaccumulation factor) valueof test chemical was determined to be 28 dimensionless, which does not exceed the bioconcentration threshold of 2000, indicating that the chemical is considered to be non-accumulative in aquatic organisms.

Description of key information

The bioaccumulation study was conducted for estimating the BCF (bioaccumulation factor) value of test chemical. The bioaccumulation factor (BCF) value was calculated using a logKow of 4.09 and a regression-derived equation. The estimated BCF (bioaccumulation factor) valueof test chemical was determined to be 28 dimensionless, which does not exceed the bioconcentration threshold of 2000, indicating that the chemical is considered to be non-accumulative in aquatic organisms.

Key value for chemical safety assessment

BCF (aquatic species):
28 dimensionless

Additional information

Various data of the test chemical were reviewed for the bioaccumulation end point which are summarized as below:

 

In a study from authoritative databases, the bioaccumulation study in fish was conducted for estimating the BCF (bioaccumulation factor) value of test chemical. The bioaccumulation factor (BCF) value was calculated using a logKow of 4.09 and a regression-derived equation. The estimated BCF (bioaccumulation factor) value of test chemical was determined to be 28 dimensionless.

 

In a prediction done using the BCFBAF model (v3.01) of Estimation Programs Interface, the bioconcentration factor (BCF) of test chemical was predicted. The bioconcentration factor (BCF) of test chemical was estimated to be 9.801 L/kg whole body w.w at 25°C.

 

Using Chemspider database, the bioconcentration Factor (BCF) of test chemical was evaluated. The bioconcentration factor of test chemical was estimated to be 873.9 dimensionless at both pH 5.5 and 7.4 respectively.

 

Further, SciFinder database (American Chemical Society (ACS) was used for predicting the bioconcentration factor (BCF) of test chemical. The bioconcentration factor (BCF) of test chemical was estimated to be 686 dimensionless at pH range 1-10 respectively at 25°C.

 

From CompTox Chemistry Dashboard using OPERA (OPEn (quantitative) structure-activity Relationship Application)  V1.02 model in which calculation based on PaDEL descriptors (calculate molecular descriptors and fingerprints of chemical)  the bioaccumulation i.e BCF for test chemical was estimated to be 18.5 dimensionless . The predicted BCF result based on the 5 OECD principles. Thus based on the result it is concluded that the test chemical was considered to be non-bioaccumulative in nature.

 

On the basis of above results for test chemical, it can be concluded that the BCF value of test chemical was evaluated to be ranges from 9.8 to 873.9, which does not exceed the bioconcentration threshold of 2000, indicating that the test chemical is not expected to bioaccumulate in the food chain.