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EC number: 410-190-0 | CAS number: 132983-41-6 MCP 968
- 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
Short-term toxicity to aquatic invertebrates
Administrative data
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1991
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Reliability rating was 1 because study followed OECD 202 (Daphnia sp Acute immobilization) test guidelines and was carried out under GLP
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 202 (Daphnia sp. Acute Immobilisation Test)
- GLP compliance:
- yes
Test material
- Reference substance name:
- MCP 968
- IUPAC Name:
- MCP 968
- Reference substance name:
- A mixture of isomers of: mono-(2-tetradecyl)naphthalenes; di-(2-tetradecyl)naphthalenes; tri-(2-tetradecyl)naphthalenes
- EC Number:
- 410-190-0
- EC Name:
- A mixture of isomers of: mono-(2-tetradecyl)naphthalenes; di-(2-tetradecyl)naphthalenes; tri-(2-tetradecyl)naphthalenes
- Cas Number:
- 132983-41-6
- Molecular formula:
- Can vary from C24H36 (mono rxn product) to C52H92 (tri rxn product)
- IUPAC Name:
- 2,3,6-tritetradecylnaphthalene; 2,3-ditetradecylnaphthalene; 2-tetradecylnaphthalene
- Details on test material:
- - Name of test material (as cited in study report): MCP 968
- Physical state: Liquid
- Analytical purity: 100%
Constituent 1
Constituent 2
Sampling and analysis
- Analytical monitoring:
- no
Test solutions
- Vehicle:
- no
Test organisms
- Test organisms (species):
- Daphnia magna
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 48 h
- Remarks on exposure duration:
- water soluble fraction (WSF) solutions tested
Test conditions
- Hardness:
- Hardness of reconstituted freshwater : 207 mg/L as CaCO3
- Test temperature:
- Test temp: 21-22 C
- pH:
- pH 7.92 -8.08
- Dissolved oxygen:
- Dissolved oxygen: 7.5 -7.8 mg/L
- Nominal and measured concentrations:
- Nominal loadings at 0, 87, 520, 1040, 1994 and 5029 mg/L nominal - generated as water soluble fraction (WSF) solutions
- Reference substance (positive control):
- no
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 48 h
- Dose descriptor:
- EL50
- Effect conc.:
- > 5 029 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Remarks:
- nominal loading
- Basis for effect:
- other: immobilization
- Remarks on result:
- other: WSF
- Duration:
- 48 h
- Dose descriptor:
- other: NOEL
- Effect conc.:
- > 5 029 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Remarks:
- nominal loading
- Basis for effect:
- other: immobilization
- Remarks on result:
- other: WSF
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- The test substance did not cause any acute toxicity (i.e., immobilization or abnormal behavior) to Daphnia magna at the five concentrations tested including the highest 5029 mg/L loading exposure. The 48-hr EL50 value was determined to be >5029 mg/L WSF. The NOEL (no observed effect loading) after 48 hr was found to be > 5029 mg/L WSF based on no immobilization at this loading.
- Executive summary:
The acute toxicity of the test material, as measured by immobilization to the water flea, Daphnia magna, was evaluated in freshwater. Water soluble fractions solutions of the test material did not produce any acute toxicity to Daphnia even at the highest nominal loadings of 5029 mg/L under the conditions of this study. It was determined that the 48 hr EL50 value was > 5029 mg/L WSF and the NOEL was > 5029 mg/L WSF since no immobilization and no adverse effects were observed. Hence, the test material is not expected to produce acute toxicity at its water solubility level in the WSF in this test.
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