Registration Dossier
Registration Dossier
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EC number: 204-351-2 | CAS number: 119-79-9
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 Environmental Science Center’s PBT profiler
- Author:
- Environmental Science Center
- Year:
- 2 013
- Bibliographic source:
- PBT profiler, Office of Chemical Safety and Pollution Prevention , U.S. Environmental Protection Agency; version 1.301
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: modelling database
- Principles of method if other than guideline:
- Data is from PBT Profiler database
- GLP compliance:
- no
Test material
- Reference substance name:
- 5-aminonaphthalene-2-sulphonic acid
- EC Number:
- 204-351-2
- EC Name:
- 5-aminonaphthalene-2-sulphonic acid
- Cas Number:
- 119-79-9
- Molecular formula:
- C10H9NO3S
- IUPAC Name:
- 5-aminonaphthalene-2-sulfonic acid
- Details on test material:
- Name of the test material: 5-aminonaphthalene-2-sulphonic acid
Molecular formula: C10H9NO3S
Molecular weight: 223.26
Physical state: Solid
Substance Type: Organic
Constituent 1
- Radiolabelling:
- not specified
Study design
- Oxygen conditions:
- other: estmated data
- Soil classification:
- not specified
Duration of test (contact time)
- Soil No.:
- #1
- Duration:
- 75 d
Results and discussion
% Degradation
- Soil No.:
- #1
- % Degr.:
- 50
- Parameter:
- other: Half life
- Sampling time:
- 75 d
Half-life / dissipation time of parent compound
- Soil No.:
- #1
- DT50:
- 75 d
- Remarks on result:
- other: 75 days= 1800 hrs
- Transformation products:
- not specified
- Evaporation of parent compound:
- not specified
- Volatile metabolites:
- not specified
- Residues:
- not specified
Any other information on results incl. tables
Medium |
Half life in Days |
Percent in medium |
Soil |
75 |
85% |
Applicant's summary and conclusion
- Conclusions:
- Half life period of 5-aminonaphthalene-2-sulphonic acid in Soil was observed to be 75 days which does not exceed the threshold of 120 days as mentioned in Annex XIII of the REACH regulation. Based on these half life values it is concluded that 5-aminonaphthalene-2-sulphonic acid is readily biodegradable (non-persistent) in soil.
- Executive summary:
- Half life period of 5-aminonaphthalene-2-sulphonic acid in Soil was observed to be 75 days which does not exceed the threshold of 120 days as mentioned in Annex XIII of the REACH regulation. Based on these half life values it is concluded that 5-aminonaphthalene-2-sulphonic acid is readily biodegradable (non-persistent) in soil.
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