Dihydrogen (ethyl)[4-[[4-[ethyl(3-sulphonatobenzyl)amino]phenyl](2-sulphonatophenyl)methylene]cyclohexa-2,5-dien-1-ylidene](3-sulphonatobenzyl)ammonium, aluminium salt

Bioaccumulation: aquatic / sediment

Link to relevant study record(s)

Reference

Endpoint:

bioaccumulation in aquatic species, other

Type of information:

calculation (if not (Q)SAR)

Adequacy of study:

weight of evidence

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

accepted calculation method

Justification for type of information:

Estimated data generated using the EPI Suite program developed by the USEPA.

Qualifier:

according to guideline

Guideline:

other: Modeling database

Principles of method if other than guideline:

Prediction done using BCFBAF (v3.01) model

GLP compliance:

no

Radiolabelling:

no

Vehicle:

not specified

Test organisms (species):

other: Fish

Route of exposure:

aqueous

Test type:

not specified

Water / sediment media type:

natural water: freshwater

Test temperature:

25°C

Reference substance (positive control):

not specified

Key result

Temp.:

25 °C

Type:

BCF

Value:

3.162 L/kg

Basis:

whole body w.w.

Calculation basis:

other: estimated

Remarks on result:

other: Non-bioaccumulative

Validity criteria fulfilled:

not specified

Conclusions:

The bioconcentration factor (BCF) of test chemical was estimated to be 3.162 L/kg whole body w.w (at 25°C) which does not exceed the bio concentration threshold of 2000, indicating that the test chemical is not expected to bioaccumulate in the food chain.

Executive summary:

BCFBAF model of Estimation Programs Interface was used to predict the bioconcentration factor (BCF) of test chemical. The bioconcentration factor (BCF) of test chemical was estimated to be 3.162 L/kg whole body w.w (at 25°C) which does not exceed the bio concentration threshold of 2000, indicating that the test chemical is not expected to bioaccumulate in the food chain.

Description of key information

BCFBAF model of Estimation Programs Interface was used to predict the bioconcentration factor (BCF) of test chemical. The bioconcentration factor (BCF) of test chemical was estimated to be 3.162 L/kg whole body w.w (at 25°C) which does not exceed the bio concentration threshold of 2000, indicating that the test chemical is not expected to bioaccumulate in the food chain.

Key value for chemical safety assessment

BCF (aquatic species):

3.162 L/kg ww

Additional information

Predicted data of the test chemical and various supporting weight of evidence study for its structurally similar read across substance were reviewed for the bioaccumulation end point which are summarized as below:

 

In aprediction done using theBCFBAF Programof Estimation Programs Interface was used to predict the bioconcentration factor (BCF) of test chemical. The bioconcentration factor (BCF) of test chemical was estimated to be 3.162 L/kg whole body w.w (at 25°C).

 

In a supporting weight of evidence study from authoritative database (2017) for the test chemical,he 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 -2.74 and a regression-derived equation. The estimated BCF (bioaccumulation factor) value of test chemical was determined to be 3.0 dimensionless.

 

For the test chemical, the bioaccumulation study was conducted for determining the BCF (bioaccumulation factor) value of test chemical (HSDB, 2017). Although BCF value of test chemical was not known, but ionic character of test chemical indicates that the chemical is non-bioaccumulative in aquatic organisms.

 

On the basis of above results of the test chemical, it can be concluded that the BCF value of test chemical was evaluated to be 3.0,which does not exceed the bioconcentration threshold of 2000, indicating that the test chemicalis not expected to bioaccumulate in the food chain.