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EC number: 249-482-6 | CAS number: 29171-20-8
- 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
- Study period:
- 07.11.1988 - 18.11.1988
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: non GLP study, non OECD guideline study
Cross-referenceopen allclose all
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to other study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 988
- Report date:
- 1988
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: DIN 38412 L 9
- Deviations:
- no
- Principles of method if other than guideline:
- Not available
- GLP compliance:
- no
Test material
- Reference substance name:
- 3,7-dimethyloct-6-en-1-yn-3-ol
- EC Number:
- 249-482-6
- EC Name:
- 3,7-dimethyloct-6-en-1-yn-3-ol
- Cas Number:
- 29171-20-8
- Molecular formula:
- C10H16O
- IUPAC Name:
- 3,7-dimethyloct-6-en-1-yn-3-ol
- Details on test material:
- - Name of test material (as cited in study report): Dehydrolinalool
Stability under test conditions: not available
Constituent 1
- Specific details on test material used for the study:
- Details on properties of test surrogate or analogue material (migrated information):
Not available
Sampling and analysis
- Analytical monitoring:
- no
- Details on sampling:
- Not available
Test solutions
- Vehicle:
- yes
- Details on test solutions:
- est concentrations (nominal): 7.8, 15.6, 31.25, 62.5, 125 mg/L
Test organisms
- Test organisms (species):
- Desmodesmus subspicatus (previous name: Scenedesmus subspicatus)
- Details on test organisms:
- TEST ORGANISM
- Common name: Scenedesmus subspicatus
- Source (laboratory, culture collection): Algensammlung Göttingen, SAG 86.81
ACCLIMATION
- Acclimation period: 3 days
- Culturing media and conditions (same as test or not): no data
- Any deformed or abnormal cells observed: no data
Study design
- Test type:
- static
- Water media type:
- freshwater
- Total exposure duration:
- 96 h
- Post exposure observation period:
- No data
Test conditions
- Hardness:
- Not available
- Test temperature:
- 20.0 °C
- pH:
- 7.24 - 8.5
- Dissolved oxygen:
- not available
- Salinity:
- not applicable
- Nominal and measured concentrations:
- Nominal: 7.81, 15.63, 31.25, 62.5, 125 mg/L
- Details on test conditions:
-
- Adjustment of pH: no
- Chlorophyll measurement: fluorimeter
TEST CONCENTRATIONS
- Test concentrations: 7.81 -125 mg/L
- Reference substance (positive control):
- not specified
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- 42.1 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- biomass
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- 53.5 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth rate
- Duration:
- 72 h
- Dose descriptor:
- EC10
- Effect conc.:
- 30.4 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- biomass
- Duration:
- 72 h
- Dose descriptor:
- EC10
- Effect conc.:
- 34.2 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth rate
- Details on results:
- - Exponential growth in the control (for algal test): yes
- Observation of abnormalities (for algal test): not available
- Results with reference substance (positive control):
- No data
- Reported statistics and error estimates:
- No data
Any other information on results incl. tables
Biomass:
EC10 : 30.4 mg/L
EC50 : 42.1 mg/L
Growth rate:
EC 10 : 34.2 mg/L
EC 50 : 53.5 mg/
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- EC50 of inhibition on biomass and growth rate of this fresh water algae species were determined at 42.1 mg/l and 53.5 mg/l, respectively .
- Executive summary:
The influence of the test item Dehydrolinalool on the growth of the green algal species Scenedesmus subspicatus was investigated in a 96-hour static test according to the DIN 38412 L 9 guideline. EC 50 of biomass/growth rate of this fresh water algae species was determined to be 42.1 / 53.5 mg/l in 72 hour period.
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