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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:
data is from computational model developed by USEPA.
Qualifier:
according to
Guideline:
other: Modeling database
Principles of method if other than guideline:
BCFBAF Program (v3.00)
GLP compliance:
not specified
Specific details on test material used for the study:
- Name of test material (IUPAC name): aluminum tris(4-{[3-carboxy-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazol-4-yl]diazenyl}benzenesulfonate)- Common name: FD&C Yellow No. 5 Aluminum Lake- Molecular formula: C48H33AlN12O27S6- Molecular weight: 495.4038 g/mol-InChl:1S/C16H12N4O9S2.Al/c21-15-13(18-17-9-1-5-11(6-2-9)30(24,25)26)14(16(22)23)19-20(15)10-3-7-12(8-4-10)31(27,28)29;/h1-8,13H,(H,22,23)(H,24,25,26)(H,27,28,29);/b18-17+;- Substance type: Organic- Physical state: solid
Radiolabelling:
not specified
Vehicle:
not specified
Test organisms (species):
other: Fish
Route of exposure:
aqueous
Test type:
other: estimated
Water / sediment media type:
natural water: freshwater
Test temperature:
25 deg. C
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

BCFBAF Program (v3.01) Results:

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

SMILES : OS(c(cc3)ccc3N=NC(C(C(=O)(O))=NN1c2ccc(cc2)S(O)(=O)=O)C1(=O))(=O)=O

CHEM : C.I. Pigment Yellow 100

MOL FOR: C16 H12 N4 O9 S2

MOL WT : 468.41

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

Summary Results:

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

Biotransformation Half-Life (days) : 0.0545 (normalized to 10 g fish)

Log BAF (Arnot-Gobas upper trophic): -0.04 (BAF = 0.905 L/kg wet-wt)

Log Kow (experimental): not available from database

Log Kow used by BCF estimates: -0.79

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:
From BCFBAF Program (v3.00) model of EPI suite the estimated bio concentration factor (BCF) for test chemical aluminum tris(4-{[3-carboxy-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazol-4-yl]diazenyl}benzenesulfonate)(CAS No: 12225-21-7) is 3.162 L/kg wet-wt which does not exceed the bioconcentration threshold of 2000. Thus it is concluded that the test chemical aluminum tris(4-{[3-carboxy-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazol-4-yl]diazenyl}benzenesulfonate) is not expected to bio accumulate in the aquatic environment.
Executive summary:

From BCFBAF Program (v3.00) model of EPI suite the estimated bio concentration factor (BCF) for  test chemical aluminum tris(4-{[3-carboxy-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazol-4-yl]diazenyl}benzenesulfonate)(CAS No: 12225-21-7) is 3.162 L/kg wet-wt which does not exceed the bioconcentration threshold of 2000. Thus it is concluded that the test chemical aluminum tris(4-{[3-carboxy-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazol-4-yl]diazenyl}benzenesulfonate) is not expected to bio accumulate in the aquatic environment.

Description of key information

From BCFBAF Program (v3.00) model of EPI suite the estimated bio concentration factor (BCF) for  test chemical aluminum tris(4-{[3-carboxy-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazol-4-yl]diazenyl}benzenesulfonate) (CAS No: 12225-21-7) is 3.162 L/kg wet-wt which does not exceed the bioconcentration threshold of 2000. Thus it is concluded that the test chemical aluminum tris(4-{[3-carboxy-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazol-4-yl]diazenyl}benzenesulfonate) is not expected to bio accumulate in the aquatic environment.

Key value for chemical safety assessment

BCF (aquatic species):
3.162 L/kg ww

Additional information

Results of predicted data study for target compound aluminum tris(4-{[3-carboxy-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazol-4-yl]diazenyl}benzenesulfonate)(CAS No: 12225-21-7) and experimental study for its parent compound as read across chemical are summarized below for bioaccumulation in water and sediment endpoint.

 

In a key study prediction was done from BCFBAF Program (v3.00) model of Estimation Program interface Interface (EPI suite, 2017) in this study the estimated bio concentration factor (BCF) for  test chemical aluminum tris(4-{[3-carboxy-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazol-4-yl]diazenyl}benzenesulfonate)(CAS No: 12225-21-7) was 3.162 L/kg wet-wt which does not exceed the bioconcentration threshold of 2000. Thus it is concluded that the test chemical aluminum tris(4-{[3-carboxy-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazol-4-yl]diazenyl}benzenesulfonate) is not expected to bio accumulate in the aquatic environment.

 

 Another study was supporting experimental study for parent compound of target chemical as read across chemical from authoritative database ( Jcheck, 2017) in this study the Bioaccumulation test was conducted for 6 weeks for determination the bioconcentration factor (BCF) of read across chemical trisodium 5-hydroxy-1-(4-sulphophenyl)-4-(4-sulphophenylazo)pyrazole-3-carboxylate (CAS no 1934-21-0) on test organism Cyprinus carpio. Recovery ratio of Test water was at 1st concentration area: 91.7 % and at 2nd concentration area: 83 .0%, Fish: 90.6 %, and Limit of detection in Fish was 0.17 mg/L

Nominal concentrations used was 1st Concentration area: 0.6 mg/L (w/v), 2nd Concentration area: 0.06 mg/L (w/v) and Range finding study was carried out on Rice fish (Oryzias latipes) TLm(48h) ≥ 1000 ppm(w/v). The lipid content of fish was 2.8 %.

 

Thus according to static Fish test the BCF value for read across chemical trisodium 5-hydroxy-1-(4-sulphophenyl)-4-(4-sulphophenylazo)pyrazole-3-carboxylate was observed to be ≤0.29 L/kg at dose concentration 0.6 mg/L and ≤ 3 L/kg at dose concentration 0.06 mg/L on test organism Cyprinus carpio during 6 weeks period.These BCF values indicate that the read across substance trisodium 5-hydroxy-1-(4-sulphophenyl)-4-(4-sulphophenylazo)pyrazole-3-carboxylate is not bioaccumulative in fish and food chain as these values are far less than 2000 criteria.

 

 On the basis of both the studies mentioned above it is concluded that test chemical aluminum tris(4-{[3-carboxy-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazol-4-yl]diazenyl}benzenesulfonate)(CAS No: 12225-21-7) is non bioaccumulative in nature.