Registration Dossier
Registration Dossier
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EC number: 250-797-6 | CAS number: 31775-16-3
Long-term toxicity to aquatic invertebrates
Administrative data
- Endpoint:
- long-term toxicity to aquatic invertebrates
- Adequacy of study:
- other information
- Study period:
- 1999-06-23 - 1999-07-14
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 999
- Report date:
- 1999
Materials and methods
Test material
- Reference substance name:
- 2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxobutyramide]
- EC Number:
- 225-822-9
- EC Name:
- 2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxobutyramide]
- Cas Number:
- 5102-83-0
- IUPAC Name:
- 2,2'-[(3,3'-dichlorobiphenyl-4,4'-diyl)didiazene-2,1-diyl]bis[N-(2,4-dimethylphenyl)-3-oxobutanamide]
Constituent 1
Study design
- Total exposure duration:
- 21 d
- Post exposure observation period:
- not applicable
Test conditions
- Hardness:
- Concentration group / Control [mmol Ca(2+) + Mg(2+)]
2.0 - 2.5 / 2.1 - 2.5 - Test temperature:
- Concentration group / Control [°C]
20.5 to 21.5 / 20.7 to 21.4 - pH:
- Concentration group / Control
7.8 - 8.3 / 7.8 - 8.1 - Dissolved oxygen:
- Concentration group / Control [mg/L]
8.6 to 9.4 / 8.6 to 9.3 - Salinity:
- medium according to Elendt M4
- Nominal and measured concentrations:
- 1 mg/L nominal:
Analytical monitoring of the concentration of the test substance in the test water was not conducted since no relevant results could be expected. The solubility limit of the test substance is below the analytical detection limit. From the properties of the test substance it could be concluded that the test substance was chemically stable in water over the test intervals of 48 and 72 hours, respectively. Due to the very low solubility of the substance it can be estimated, that the actual concentration is smaller or equal to 20 µg/L.
Results and discussion
Effect concentrations
- Duration:
- 21 d
- Effect conc.:
- 1 mg/L
Applicant's summary and conclusion
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