Registration Dossier
Registration Dossier
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EC number: 213-138-3 | CAS number: 926-57-8
Toxicity to microorganisms
Administrative data
- Endpoint:
- activated sludge respiration inhibition testing
- Type of information:
- experimental study
- Adequacy of study:
- other information
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: National Guideline study with acceptable restrictions
Data source
Referenceopen allclose all
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 992
- Report date:
- 1992
- Reference Type:
- secondary source
- Title:
- 1,3-Dichlorobut-2-ene - CAS No: 926-57-8
- Author:
- OECD SIDS
- Year:
- 2 007
- Bibliographic source:
- SIDS Initial Assessment Report for 22th SIAM, UNEP Publications
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- ISO 8192 (Water quality - Test for inhibition of oxygen consumption by activated sludge for carbonaceous and ammonium oxidation)
- GLP compliance:
- yes
Test material
- Reference substance name:
- 1,3-dichlorobut-2-ene
- EC Number:
- 213-138-3
- EC Name:
- 1,3-dichlorobut-2-ene
- Cas Number:
- 926-57-8
- Molecular formula:
- C4H6Cl2
- IUPAC Name:
- 1,3-dichlorobut-2-ene
- Details on test material:
- purity: 99.1 %
Constituent 1
Sampling and analysis
- Analytical monitoring:
- no
Test organisms
- Test organisms (species):
- activated sludge
Study design
- Test type:
- static
- Water media type:
- freshwater
- Total exposure duration:
- 3 h
Results and discussion
Effect concentrations
- Duration:
- 3 h
- Dose descriptor:
- EC50
- Effect conc.:
- 152 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- inhibition of total respiration
- Remarks:
- respiration rate
Applicant's summary and conclusion
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
