Registration Dossier
Registration Dossier
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The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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EC number: 213-367-9 | CAS number: 939-97-9
Toxicity to microorganisms
Administrative data
- Endpoint:
- activated sludge respiration inhibition testing
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: No detailled information on the test substance was given.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 991
- Report date:
- 1991
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 209 (Activated Sludge, Respiration Inhibition Test
- GLP compliance:
- no
Test material
- Reference substance name:
- 4-tert-butylbenzaldehyde
- EC Number:
- 213-367-9
- EC Name:
- 4-tert-butylbenzaldehyde
- Cas Number:
- 939-97-9
- Molecular formula:
- C11H14O
- IUPAC Name:
- 4-tert-butylbenzaldehyde
- Details on test material:
- - Name of test material (as cited in study report): 4-tert-buylbenzaldehyde; no further details given
Constituent 1
Sampling and analysis
- Analytical monitoring:
- no
Test organisms
- Test organisms (species):
- activated sludge, domestic
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 30 min
Results and discussion
Effect concentrations
- Duration:
- 30 min
- Dose descriptor:
- other: EC20
- Effect conc.:
- 780 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- inhibition of total respiration
- Remarks:
- respiration rate
Any other information on results incl. tables
Respiration inhibition of the reference substance 3,5-Dichlorphenol:
EC20: not determined.
EC50: about 11 mg/L
EC90: about 49 mg/L
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.
