Registration Dossier
Registration Dossier
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EC number: 202-751-1 | CAS number: 99-34-3
Toxicity to aquatic algae and cyanobacteria
Administrative data
- Endpoint:
- toxicity to aquatic algae and cyanobacteria
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
Data source
Reference
- Reference Type:
- review article or handbook
- Title:
- Reaxys no : 1914286
- Year:
- 2 011
- Bibliographic source:
- Reaxys by Elsevier Properties SA; Biodegradation; vol. 9; nb. 5; (1998); p. 349 - 368
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other:
- Principles of method if other than guideline:
- Method : incubation of the algae with title comp.
- GLP compliance:
- not specified
Test material
- Reference substance name:
- 3,5-dinitrobenzoic acid
- EC Number:
- 202-751-1
- EC Name:
- 3,5-dinitrobenzoic acid
- Cas Number:
- 99-34-3
- Molecular formula:
- C7H4N2O6
- IUPAC Name:
- 3,5-dinitrobenzoic acid
Constituent 1
Sampling and analysis
- Analytical monitoring:
- not specified
Test solutions
- Vehicle:
- not specified
Test organisms
- Test organisms (species):
- Chlamydomonas reinhardtii
- Details on test organisms:
- Species or Test-System : Chlamidomonas reinhardtii 11-32b
Study design
- Test type:
- not specified
- Water media type:
- freshwater
- Limit test:
- yes
- Total exposure duration:
- 21 d
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 21 d
- Dose descriptor:
- other: not reported
- Effect conc.:
- 250 mg/L
- Nominal / measured:
- meas. (not specified)
- Conc. based on:
- test mat.
- Basis for effect:
- other: decrease of title comp. concn. in cultural medium
- Duration:
- 14 d
- Dose descriptor:
- other: not reported
- Effect conc.:
- 250 mg/L
- Nominal / measured:
- meas. (not specified)
- Conc. based on:
- test mat.
- Basis for effect:
- other: chlorophyll content
- Details on results:
- Further Details : in M12 medium under continous illumination (60 μmol/photons/m2*sec) at 22 deg C; abiotic loss of title comp. between 1 and 4 percent
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Executive summary:
1. Decrease in concentration of title compound by 42 %
2. Marked decrease in chlorophyll content up to 57.1 mg/l compared to 74.8 mg/l in control
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