Registration Dossier
Registration Dossier
Diss Factsheets
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: 947-752-4 | CAS number: -
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data

Toxicity to microorganisms
Administrative data
- Endpoint:
- activated sludge respiration inhibition testing
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1990-06-12 (experimental phase)
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study without detailed documentation
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 990
- Report date:
- 1990
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)
- Version / remarks:
- ISO-Vorschrift 8192-1986 (E)
- Deviations:
- no
- GLP compliance:
- yes
Test material
- Reference substance name:
- [8,20-dihydro-8,20-diphenyl-5,24:12,17-diimino-7,10:22,19-dinitrilodibenz[f,p][1,2,4,9,11,12,14,19]octaazacycloicosinato(2-)-N25,N26,N27,N28]iron
- EC Number:
- 256-526-8
- EC Name:
- [8,20-dihydro-8,20-diphenyl-5,24:12,17-diimino-7,10:22,19-dinitrilodibenz[f,p][1,2,4,9,11,12,14,19]octaazacycloicosinato(2-)-N25,N26,N27,N28]iron
- Cas Number:
- 50293-39-5
- Molecular formula:
- C32H18FeN12
- IUPAC Name:
- [8,20-dihydro-8,20-diphenyl-5,24:12,17-diimino-7,10:22,19-dinitrilodibenz[f,p][1,2,4,9,11,12,14,19]octaazacycloicosinato(2-)-N25,N26,N27,N28]iron
- Test material form:
- solid
Constituent 1
Sampling and analysis
- Analytical monitoring:
- no
Test solutions
- Vehicle:
- no
Test organisms
- Test organisms (species):
- activated sludge
- Details on inoculum:
- - Name and location of sewage treatment plant where inoculum was collected:
Laborkläranlage (OECD)
- Initial biomass concentration: 6 g/l dry matter
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- no
- Remarks on exposure duration:
- not stated in report
Test conditions
- Nominal and measured concentrations:
- nominal 100, 1000, 1000 mg/l
- Reference substance (positive control):
- yes
- Remarks:
- 3,5-dichlorophenol
Results and discussion
Effect concentrations
- Key result
- Dose descriptor:
- EC50
- Effect conc.:
- > 10 000 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- inhibition of total respiration
- Remarks on result:
- not determinable
- Remarks:
- no sufficient inhibition
- Results with reference substance (positive control):
- Test valid, positive control gave the appropriate results
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Remarks:
- positive control gave the appropriate result
- Conclusions:
- The study was conducted according to ISO-Vorschrift 8192-1986 (E) on the registered substance itself with minor deficiencies in documentation. However, the given data indicate that the study was well and scientifically reasonable performed. The positive control induced the appropriate response. Hence, the results can be considered as sufficiently reliable to assess the toxicity of the test item towards microorganisms. The determined EC50 was > 10000 mg/l, hence, the substance can be considered as non-toxic to activated sludge.
- Executive summary:
The potential hazard of the test item towards microorganisms was tested in an ISO-Vorschrift 8192-1986 (E) study. Concentrations ranging from 100 to 10000 mg/l were applied to activated sludge and the respiration rate was determined. Concentrations up to 1000 mg/l did not result in an inhibition of the respiration rate, 10000 mg/l induced an inhibition of 25%. 3,5-dichlorophenol served as positive control and induced the appropriate results. The test item was non-toxic to activated sludge, the EC50 was determined as > 10000 mg/l.
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.

EU Privacy Disclaimer
This website uses cookies to ensure you get the best experience on our websites.