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Diss Factsheets

Environmental fate & pathways

Biodegradation in water: screening tests

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Administrative data

Endpoint:
biodegradation in water: ready biodegradability
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
other: Prediction model
Title:
Biodegradation in water by EPI (Estimation Programs Interface) Suite
Author:
Sustainability Support Service (Europe) AB - estimated
Year:
2011
Bibliographic source:
Estimation Programs Interface Suite™ United States Environmental Protection Agency, Washington, DC, USA. version 4.1

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Modeling database
Principles of method if other than guideline:
BIOWIN (v4.10) Program by EPI Suite estimation database.
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
4-amino-6-chlorobenzene-1,3-disulphonamide
EC Number:
204-463-1
EC Name:
4-amino-6-chlorobenzene-1,3-disulphonamide
Cas Number:
121-30-2
Molecular formula:
C6H8ClN3O4S2
IUPAC Name:
4-amino-6-chlorobenzene-1,3-disulfonamide
Details on test material:
- Name of test material: 4-amino-6-chlorobenzene-1,3-disulphonamide
- Molecular formula: C6H8ClN3O4S2
- Molecular weight: 285.73
- Substance type: Organic
- Physical state: Solid

Study design

Oxygen conditions:
other: estimation
Inoculum or test system:
not specified
Parameter followed for biodegradation estimation
Parameter followed for biodegradation estimation:
test mat. analysis

Results and discussion

% Degradationopen allclose all
Parameter:
% degradation (test mat. analysis)
Value:
0.195
Remarks on result:
other: Biowin1 (Linear Model Prediction)
Parameter:
% degradation (test mat. analysis)
Value:
0.007
Remarks on result:
other: Biowin2 (Non-Linear Model Prediction)

Applicant's summary and conclusion

Interpretation of results:
other: Does Not Biodegrade Fast
Conclusions:
According to Biowin1 (Linear Model Prediction) and Biowin2 (Non-Linear Model Prediction) the biodegaradtion value of
4-amino-6-chlorobenzene-1,3-disulphonamide estimated to be 0.1954 and 0.0069 respectively indicating that 4-amino-6-chlorobenzene-1,3-disulphonamide is not readily biodegradable.
Executive summary:

------+-----+--------------------------------------------+---------+---------

TYPE | NUM | Biowin1 FRAGMENT DESCRIPTION | COEFF | VALUE

------+-----+--------------------------------------------+---------+---------

Frag | 1 | Aromatic chloride [-CL] | -0.1824 | -0.1824

Frag | 1 | Aromatic amine [-NH2 or -NH-] | -0.2338 | -0.2338

MolWt| * | Molecular Weight Parameter | | -0.1360

Const| * | Equation Constant | | 0.7475

============+============================================+=========+=========

RESULT | Biowin1 (Linear Biodeg Probability) | | 0.1954

============+============================================+=========+=========

------+-----+--------------------------------------------+---------+---------

TYPE | NUM | Biowin2 FRAGMENT DESCRIPTION | COEFF | VALUE

------+-----+--------------------------------------------+---------+---------

Frag | 1 | Aromatic chloride [-CL] | -2.0155 | -2.0155

Frag | 1 | Aromatic amine [-NH2 or -NH-] | -1.9070 | -1.9070

MolWt| * | Molecular Weight Parameter | | -4.0572

============+============================================+=========+=========

RESULT | Biowin2 (Non-Linear Biodeg Probability) | | 0.0069

============+============================================+=========+=========