Registration Dossier
Registration Dossier
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EC number: 930-430-2 | CAS number: 1383692-20-3
Toxicity to microorganisms
Administrative data
- Endpoint:
- activated sludge respiration inhibition testing
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP study according to EU/OECD-guidelines.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 014
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 209 (Activated Sludge, Respiration Inhibition Test
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- 1-difluoromethanesulfonyl-3-(4,6-dimethoxy-1,3,5-triazin-2-yl)-7-fluoro-1H-indol-2-ol
- EC Number:
- 930-430-2
- Cas Number:
- 1383692-20-3
- Molecular formula:
- C14H11F3N4O5S
- IUPAC Name:
- 1-difluoromethanesulfonyl-3-(4,6-dimethoxy-1,3,5-triazin-2-yl)-7-fluoro-1H-indol-2-ol
Constituent 1
Sampling and analysis
- Analytical monitoring:
- no
Test solutions
- Vehicle:
- no
Test organisms
- Test organisms (species):
- activated sludge
Study design
- Test type:
- flow-through
- Water media type:
- freshwater
- Limit test:
- yes
- Total exposure duration:
- 3 h
Test conditions
- Test temperature:
- 20 ± 2°C
- Nominal and measured concentrations:
- 1000 mg/L
- Reference substance (positive control):
- yes
- Remarks:
- 3,5-Dichlorophenol
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 3 h
- Dose descriptor:
- EC50
- Effect conc.:
- > 1 000 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- inhibition of total respiration
- Remarks:
- respiration rate
- Duration:
- 3 h
- Dose descriptor:
- EC10
- Effect conc.:
- > 1 000 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- inhibition of total respiration
- Remarks:
- respiration rate
- Duration:
- 3 h
- Dose descriptor:
- NOEC
- Effect conc.:
- > 1 000 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- inhibition of total respiration
- Remarks:
- respiration rate
- Details on results:
- The test itemshowed < 1 % respiration inhibition of activated sludge at the highest test item concentration of 1000 mg/L.
The test item showed no statistical significant difference of respiration inhibition of activated sludge between control and a limit test item concentration of 1000 mg/L.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- After an incubation period of 3 hours, analysis of the respiration rates gave the following values:
Results [mg/L]:
EC50: > 1000
EC10: > 1000
NOEC: > 1000
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