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Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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Reference
Endpoint:
bioaccumulation in aquatic species, other
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
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.
Reference:
Composition 0
Qualifier:
according to
Guideline:
other: Modeling database
Principles of method if other than guideline:
Prediction done using BCFBAF (v3.01) model
GLP compliance:
not specified
Test material information:
Composition 1
Specific details on test material used for the study:
- Name of test material (IUPAC name): 2-[2-[4-[(2-chloroethyl)ethylamino]-o-tolyl]vinyl]-1,3,3- trimethyl-3H-indolium chloride
- Common name: Astrazonrot 6B
- Molecular formula: C24H30ClN2Cl
- Molecular weight: 417.421 g/mol
- Smiles notation: C1(=[N+](c2ccccc2C1(C)C)C)\C=C/c1c(cc(N(CCCl)CC)cc1)C.[ClH-]
- InChl: 1S/C24H30ClN2.ClH/c1-6-27(16-15-25)20-13-11-19(18(2)17-20)12-14-23-24(3,4)21-9-7-8-10-22(21)26(23)5;/h7-14,17H,6,15-16H2,1-5H3;1H/q+1;/p-1
- Substance type: Organic
- Physical state: Solid
Radiolabelling:
not specified
Vehicle:
not specified
Test organisms (species):
other: Fish
Route of exposure:
aqueous
Justification for method:
other: No data available
Test type:
not specified
Water / sediment media type:
natural water: freshwater
Test temperature:
25 deg.C
Nominal and measured concentrations:
Estimated data
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
Details on kinetic parameters:
No data available
Metabolites:
No data available
Results with reference substance (positive control):
No data available
Details on results:
No data available
Reported statistics:
No data available

BCFBAF Program (v3.01) Results:

==============================

SMILES : CLCCN(c(cc(C)c1C=CC(=N(CL)(c2cc3)C)C(c2cc3)(C)C)cc1)CC

CHEM : 3H-Indolium, 2-[2-[4-[(2-chloroethyl)ethylamino]-2-methylphenyl]ethen

yl]-1,3,3-trimethyl-, chloride

MOL FOR: C24 H30 CL2 N2

MOL WT : 417.43

--------------------------------- BCFBAF v3.01 --------------------------------

Summary Results:

Log BCF (regression-based estimate): 0.50 (BCF = 3.16 L/kg wet-wt)

Biotransformation Half-Life (days) : 2.19 (normalized to 10 g fish)

Log BAF (Arnot-Gobas upper trophic): 1.68 (BAF = 47.5 L/kg wet-wt)

Log Kow (experimental): not available from database

Log Kow used by BCF estimates: 2.67

Equation Used to Make BCF estimate:

Log BCF = 0.50 (Ionic; Log Kow dependent)

Estimated Log BCF = 0.500 (BCF = 3.162 L/kg wet-wt)

Validity criteria fulfilled:
not specified
Conclusions:
The bioconcentration factor (BCF) of 2-[2-[4-[(2-chloroethyl)ethylamino]-o-tolyl]vinyl]-1,3,3-trimethyl-3H-indolium chloride  was estimated to be 3.162 L/kg whole body w.w (at 25 deg C) which does not exceed the bioconcentration threshold of 2000, indicating that the chemical 2-[2-[4-[(2-chloroethyl)ethylamino]-o-tolyl]vinyl]-1,3,3-trimethyl-3H-indolium chloride is expected to not bioaccumulate in the food chain.
Executive summary:

BCFBAF model (v3.01) of Estimation Programs Interface (EPI Suite, 2017) was used to predict the bioconcentration factor (BCF) of test chemical 2-[2-[4-[(2-chloroethyl)ethylamino]-o-tolyl]vinyl]- 1,3,3-trimethyl-3H-indolium chloride (CAS No. 6441 -82 -3). The bioconcentration factor (BCF) of 2-[2-[4-[(2-chloroethyl)ethylamino]-o-tolyl]vinyl]-1,3,3-trimethyl-3H-indolium chloride  was estimated to be 3.162 L/kg whole body w.w (at 25 deg C) which does not exceed the bioconcentration threshold of 2000, indicating that the chemical 2-[2-[4-[(2-chloroethyl)ethylamino]-o-tolyl]vinyl]-1,3,3- trimethyl-3H-indolium chloride is expected to not bioaccumulate in the food chain.

Description of key information

BCFBAF model (v3.01) of Estimation Programs Interface (EPI Suite, 2017) was used to predict the bioconcentration factor (BCF) of test chemical 2-[2-[4-[(2-chloroethyl)ethylamino]-o-tolyl]vinyl]- 1,3,3-trimethyl-3H-indolium chloride (CAS No. 6441 -82 -3). The bioconcentration factor (BCF) of 2-[2-[4-[(2-chloroethyl)ethylamino]-o-tolyl]vinyl]-1,3,3-trimethyl-3H-indolium chloride  was estimated to be 3.162 L/kg whole body w.w (at 25 deg C) which does not exceed the bioconcentration threshold of 2000, indicating that the chemical 2-[2-[4-[(2-chloroethyl)ethylamino]-o-tolyl]vinyl]-1,3,3- trimethyl-3H-indolium chloride is expected to not bioaccumulate in the food chain.

 

Key value for chemical safety assessment

BCF (aquatic species):
3.162 L/kg ww

Additional information

Various predicted data for the target compound 2-[2-[4-[(2-chloroethyl)ethylamino]-o-tolyl]vinyl]- 1,3,3-trimethyl-3H-indolium chloride (CAS No. 6441 -82 -3) study has been reviewed for the bioaccumulation end point which are summarized as below:

 

In the first predicted study from BCFBAF model (v3.01) of Estimation Programs Interface (EPI Suite, 2017) was used to predict the bioconcentration factor (BCF) of test chemical 2-[2-[4-[(2-chloroethyl)ethylamino]-o-tolyl]vinyl]- 1,3,3-trimethyl-3H-indolium chloride (CAS No. 6441 -82 -3). The bioconcentration factor (BCF) of 2-[2-[4-[(2-chloroethyl)ethylamino]-o-tolyl] vinyl]-1,3,3-trimethyl-3H-indolium chloride  was estimated to be 3.162 L/kg whole body w.w (at 25 deg C) which does not exceed the bioconcentration threshold of 2000, indicating that the chemical 2-[2-[4-[(2-chloroethyl)ethylamino]-o-tolyl]vinyl]-1,3,3- trimethyl-3H-indolium chloride is expected to not bioaccumulate in the food chain.

 

Similarly another supporting study 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 substance 2-[2-[4-[(2-chloroethyl)ethylamino]-o-tolyl]vinyl]-1,3,3- trimethyl-3H-indolium chloride was estimated to be 636 dimensionless . The predicted BCF result based on the 5 OECD principles. Thus based on the result it is concluded that the test substance 2-[2-[4-[(2-chloroethyl)ethylamino]-o-tolyl]vinyl]-1,3,3- trimethyl-3H-indolium chloride is non-bioaccumulative in nature.

 

On the basis of available information, the test 2-[2-[4-[(2-chloroethyl)ethylamino]-o-tolyl]vinyl]-1,3,3- trimethyl-3H-indolium chloride can be considered to be nonbioaccumulative in nature.