Registration Dossier
Registration Dossier
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EC number: 251-607-4 | CAS number: 33629-47-9
Short-term toxicity to fish
Administrative data
- Endpoint:
- short-term toxicity to fish
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 997
- Report date:
- 1997
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: FIFRA Guideline 72-3
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- 4-(tert-butyl)-N-sec-butyl-2,6-dinitroaniline
- EC Number:
- 251-607-4
- EC Name:
- 4-(tert-butyl)-N-sec-butyl-2,6-dinitroaniline
- Cas Number:
- 33629-47-9
- Molecular formula:
- C14H21N3O4
- IUPAC Name:
- N-sec-butyl-4-tert-butyl-2,6-dinitroaniline
- Reference substance name:
- Xylene
- EC Number:
- 215-535-7
- EC Name:
- Xylene
- Cas Number:
- 1330-20-7
- Molecular formula:
- C8H10
- IUPAC Name:
- m-xylene
Constituent 1
impurity 1
Test organisms
- Test organisms (species):
- Cyprinodon variegatus
Study design
- Test type:
- flow-through
- Water media type:
- saltwater
- Total exposure duration:
- 92 h
Test conditions
- Test temperature:
- 22 to 23°C
- pH:
- 7.8 to 8.0
- Dissolved oxygen:
- 75 to 96 % of saturation
- Salinity:
- 31 to 32%
- Nominal and measured concentrations:
- Nominal test concentrations: 0.065, 0.11, 0.18, 0.30 and 0.50 mg a.i./L
Mean measured concentrations: 0.031, 0.043, 0.074, 0.11 and 0.18 mg a.i./L
Results and discussion
Effect concentrationsopen allclose all
- Key result
- Duration:
- 96 h
- Dose descriptor:
- NOEC
- Effect conc.:
- ca. 0.18 mg/L
- Nominal / measured:
- meas. (initial)
- Conc. based on:
- test mat.
- Key result
- Duration:
- 96 h
- Dose descriptor:
- LC50
- Effect conc.:
- > 0.18 mg/L
- Nominal / measured:
- meas. (initial)
- Conc. based on:
- test mat.
Applicant's summary and conclusion
- Conclusions:
- The 96-hour LC50 was empirically estimated to be > 0.18 mg a.iI/L the highest mean measured concentration tested. The No-Observed-Effect Concentration (NOEC) was 0.18 mg a.i./L. Based on these results, Butralin Technical is not considered acutely toxic to sheepshead minnow at or below test material's limit of water solubility.
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