Registration Dossier
Registration Dossier
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EC number: 204-463-1 | CAS number: 121-30-2
Biodegradation in soil
Administrative data
- Endpoint:
- biodegradation in soil
- 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 soil by EPI (Estimation Programs Interface) Suite
- Author:
- Sustainability Support Service (Europe) AB - estimated
- Year:
- 2 011
- 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:
- EPI Suite estimation database and PBT Profiler estimate.
- GLP compliance:
- no
- Test type:
- other: Estimated
Test material
- 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
Constituent 1
- Radiolabelling:
- not specified
Study design
- Oxygen conditions:
- other: Estimation
- Soil classification:
- not specified
- Parameter followed for biodegradation estimation:
- test mat. analysis
Results and discussion
% Degradation
- Soil No.:
- #1
- % Degr.:
- 50
- Parameter:
- other: Half life
- Sampling time:
- 120 d
Half-life / dissipation time of parent compound
- Soil No.:
- #1
- DT50:
- 120 d
- Type:
- other: estimated data
- Remarks on result:
- other: other details not available
- Transformation products:
- not specified
- Evaporation of parent compound:
- not specified
- Volatile metabolites:
- not specified
- Residues:
- not specified
Applicant's summary and conclusion
- Conclusions:
- 4-aminoazobenzene-3, 4’-disulphonic acid is 50% biodegradable in soil in 120 days (half-life) indicating that the subatance is persistant in soil and hence not readily biodegradable.
- Executive summary:
EPI Suite:-
MassAmount
(percent)
Half-Life
(hr)
Emissions
(kg/hr)
Soil
66
2.88e+003
1000
Fugacity
(atm)
Reaction
(kg/hr)
Advection
(kg/hr)
Reaction
(percent)
Advection
(percent)
Soil
7.94e-018
722
0
24.1
0
Persistence Time: 1.51e+003 hr
Reaction Time: 3.11e+003 hr
Advection Time: 2.95e+003 hr
Percent Reacted: 48.7
Percent Advected: 51.3
Half-Lives (hr), (based upon Biowin (Ultimate) and Aopwin):
Air: 74.16
Water: 1440
Soil: 2880
Sediment: 1.296e+004
Biowin estimate: 2.226 (months)
Advection Times (hr):
Air: 100
Water: 1000
Sediment: 5e+004
PBT Profiler Estimate:
Media
Half-Life
(days)Percent in
Each MediumSoil
120
51%
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