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Diss Factsheets
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EC number: 480-240-4 | CAS number: 185257-07-2
- 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 aquatic algae and cyanobacteria
Administrative data
- Endpoint:
- toxicity to aquatic algae and cyanobacteria
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 007
- Report date:
- 2007
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 201 (Alga, Growth Inhibition Test)
- GLP compliance:
- yes
Test material
Reference
- Name:
- Unnamed
- Type:
- Constituent
- Details on test material:
- - Name of test substance: MGDN
- Purity: 99.5 area-% by HPLC-fingerprint 99.9 g/ 100 g by H-NMR spectroscopy
Sampling and analysis
- Analytical monitoring:
- yes
- Details on sampling:
- - Samples were diluted in OECD- Medium.
Test solutions
- Vehicle:
- no
- Details on test solutions:
- - The test concentrations were prepared by a serial dilution of a stock solution of 111 mg/L.
- The test substance was stirred in OECD-medium for about 15 minutes at 20 ± 2 °C.
- The stock solution was present as clear solution according to visual inspection.
Test organisms
- Test organisms (species):
- Desmodesmus subspicatus (previous name: Scenedesmus subspicatus)
- Details on test organisms:
- - Strain: Desmodesmus subspicatus CHODAT SAG 86.81
- Supplier: The test strain of Desmodesmus subspicatus CHODAT SAG 86.81 is obtained at regular intervals from SAG (Collection of algal cultures in Göttingen) and is kept in liquid culture in the Laboratory of Ecotoxicology of the Experimental Toxicology and Ecology, BASF Aktiengesellschaft, Ludwigshafen, Germany.
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 72 h
Test conditions
- Test temperature:
- 21 - 25 °C
- Nominal and measured concentrations:
- - Test concentrations (nominal): 0, 6.25, 12.5, 25, 50, and 100 mg/L
- The recovery rates of the test substance in the test solutions throughout the exposure period were in a range of + 20% of the nominal concentrations. - Details on test conditions:
- TEST SYSTEM
- Test vessel: Erlenmeyer flasks, plugged with gas permeable siliconsponge caps
- Fill volume: 250 mL
- Test volume: 100 mL
- Inoculation density (cells/mL): 0.5X 10E04
- No. of vessels per concentration (replicates): 3
- No. of vessels per control (replicates): 3
- No. of vessels for analytical control (replicates): 1
GROWTH MEDIUM
- Standard medium used: prepared according to OECD guideline
OTHER TEST CONDITIONS
- Illumination: Artificial light, type universal white (OSRAM L 25), permanent illumination
- Light intensity and quality: About 6000 - 10000 Lux at a wave length of 400 - 700 nm
EFFECT PARAMETERS MEASURED
- Test parameter: In vivo chlorophyll-a-fluorescence (pulsed excitation with light flashes having a wavelength of 435 nm)
- Measurement of fluorescence: After 0, 24, 48 and 72 h
- Cell counting: after 72 h in a counting chamber (Neubauer improved) in replicate No. 2 of the inoculated control
- Measurement of temperature: Continuously during the whole test period in the climate chamber
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 72 h
- Dose descriptor:
- EC10
- Effect conc.:
- > 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth rate
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- > 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth rate
- Duration:
- 72 h
- Dose descriptor:
- NOEC
- Effect conc.:
- >= 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth rate
- Duration:
- 72 h
- Dose descriptor:
- EC10
- Effect conc.:
- > 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- other: yield
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- > 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- other: yield
- Duration:
- 72 h
- Dose descriptor:
- NOEC
- Effect conc.:
- >= 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- other: yield
- Details on results:
- - Since the recovery rates of the test substance in the test solutions were in a range of +20% of the nominal concentrations, the effect concentration can be expressed relative to the nominal concentration.
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.