Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 219-194-5 | CAS number: 2385-77-5
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: Documented parameters are in accordance with method.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 989
- Report date:
- 1989
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:
- no
Test material
- Reference substance name:
- Citronellal
- EC Number:
- 203-376-6
- EC Name:
- Citronellal
- Cas Number:
- 106-23-0
- Molecular formula:
- C10H18O
- IUPAC Name:
- 3,7-dimethyloct-6-enal
- Details on test material:
- - Name of test material (as cited in study report): 3.7-Dimethyl-6-octen-1-al
(Citronellal)
Purity: no data
Water solubility: insoluble
Constituent 1
Sampling and analysis
- Analytical monitoring:
- no
Test organisms
- Test organisms (species):
- activated sludge, domestic
- Details on inoculum:
- Municipal activated sludge from laboratory wastewater treatment plant fed with municipal sewage and synthetic wastewater.
- final dry solids concentration: 5 g/l
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 30 min
Test conditions
- Nominal and measured concentrations:
- Nominal test concentrations: 100 and 1000 mg/l
- Reference substance (positive control):
- yes
- Remarks:
- 3,5-Dichlorphenol
Results and discussion
Effect concentrations
- Duration:
- 30 min
- Dose descriptor:
- other: EC20
- Effect conc.:
- 400 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 rate after 30 min of incubation
nominal test / respiration / respiration / respiration /
concentration / rate / inhibition / promotion /
(mg/l) / (mg/l*h) / (%) / (%) /
100 / 35 / 0 / 20 /
1000 / 17 / 43 / 0 /
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.
