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EC number: 219-440-1 | CAS number: 2437-25-4
- 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
Genetic toxicity: in vitro
Administrative data
- Endpoint:
- in vitro gene mutation study in bacteria
- Remarks:
- Type of genotoxicity: gene mutation
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 13 Sep 1988 - 22 Sep 1988
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 988
- Report date:
- 1988
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 471 (Bacterial Reverse Mutation Assay)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 472 (Genetic Toxicology: Escherichia coli, Reverse Mutation Assay)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.13/14 (Mutagenicity - Reverse Mutation Test Using Bacteria)
- Deviations:
- no
- GLP compliance:
- yes
- Type of assay:
- bacterial reverse mutation assay
Test material
- Reference substance name:
- Dodecanenitrile
- EC Number:
- 219-440-1
- EC Name:
- Dodecanenitrile
- Cas Number:
- 2437-25-4
- Molecular formula:
- C12H23N
- IUPAC Name:
- dodecanenitrile
- Reference substance name:
- Dodecanetritrile
- IUPAC Name:
- Dodecanetritrile
- Details on test material:
- - Name of test material (as cited in study report): Dodecannitril
other name: Laurinsäurenitril
- Physical state: light yellow clear liquid
- Analytical purity: > 99%
- Impurities (identity and concentrations): not stated
- melting point: 4 °C
- boiling point: 277 °C
- molecular weight: 181
- Lot/batch No.: Labordestillat
- Date of submission: 29.04.1988
- Stability under test conditions: stable
- Storage condition of test material: dark at 22 °C
Constituent 1
Constituent 2
Method
- Target gene:
- - S. typhimurium: Histidine gene
- E. coli: Tryptophan gene
Species / strainopen allclose all
- Species / strain / cell type:
- S. typhimurium TA 1535, TA 1537, TA 98 and TA 100
- Species / strain / cell type:
- S. typhimurium TA 1538
- Species / strain / cell type:
- E. coli WP2 uvr A
- Metabolic activation:
- with and without
- Metabolic activation system:
- Sprague-Dawley rat liver S9-mix induced by Aroclor 1254 (500 mg/kgbw) 5 days before sacrifice.
- Test concentrations with justification for top dose:
- Three plates / dose
Experiment 1:
All tester strains (without and with S9) : 0, 4, 20, 100, 500, 2500 and 10000 μg/plate
Visible precipitation was observed at concentrations of 10000 µg/plate.
Experiment 2:
Dose levels (without and with S9): 0, 0.16, 0.8, 4, 20, 100 and 500 (TA100, TA1538) or 0, 4, 20, 100, 500, 2500 and 5000 μg/plate (other strains)
Visible precipitation was observed at concentrations of 500 µg/plate. - Vehicle / solvent:
- - Vehicle(s)/solvent(s) used: DMSO
- Justification for choice of solvent/vehicle: Accepted and approved by authorities and international guidelines
Controlsopen allclose all
- Positive controls:
- yes
- Positive control substance:
- other: Sodium-azide 1 µg/plate (TA100, TA1535); 2-Nitrofluorene 2.5µg/plate (TA98, TA1538); 9-Aminoacridine 50µg/plate (TA1537); MNNG 2.5µg/plate (WP2uvrA)
- Remarks:
- Without metabolic activation
- Positive controls:
- yes
- Positive control substance:
- other: 2-Aminoanthracen 0.5 µg/plate (TA100, TA1538, TA98), 1 µg/plate (TA1535, TA1537), 10 µg/plate (WP2uvrA); Benzo[a]pyrene 10 µg/plate (all strains)
- Remarks:
- With metabolic activation
- Details on test system and experimental conditions:
- METHOD OF APPLICATION: in agar (plate incorporation)
DURATION
- Exposure duration: 48 to 72 hours at 37 °C in the dark
NUMBER OF REPLICATIONS:
- Doses of the test substance were tested in triplicate in each strain. Two independent experiments were conducted.
NUMBER OF CELLS EVALUATED: The suitable amount of bacteria in the cell suspension is checked by nephelometry.
DETERMINATION OF CYTOTOXICITY
- In all tester strains a reduced rate of spontaneously occurring colonies as well as visible thinning of bacterial lawn were used as indicator for Toxicity. Thinning of the bacterial lawn was controlled microscopically.
- In combination with the second experiment, toxicity testing was performed as follows: 0.1 ml of the different dilutions of the test compound were thoroughly mixed with 0.1 ml of the 10-6 dilution of the overnight culture of TA100 and plate with histidine and biotin rich top agar (3 plates per dose). The solvent control is compared with the number of colonies per plate in the presence of the test compound. Results are given as a ratio of these values (= surviving fraction).
OTHER EXAMINATIONS:
- The presence of precipitation of the test compound on the plates was determined.
- Sterility of S-9 Mix and the test compound was indicated by the absence of contamination on the test material and S-9 Mix sterility check plates. Control plates (background control and positive controls) gave the expected number of colonies. - Evaluation criteria:
- Not indicated. Evaluated for significant increase of the number of revertant colonies in any of the tester strains in absence or presence of S-9 mix.
- Statistics:
- Not indicated.
Results and discussion
Test results
- Species / strain:
- other: All Salmonella strains and E coli tested
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- cytotoxicity
- Remarks:
- Reduced bacterial lawn appearing from 20 µg/plate and higher
- Vehicle controls validity:
- not applicable
- Untreated negative controls validity:
- not applicable
- Positive controls validity:
- valid
- Additional information on results:
- TEST-SPECIFIC CONFOUNDING FACTORS
-Precipitation: precipitation was observed at dose levels of 5000 μg/plate and above with and without S-9 Mix. - Remarks on result:
- other: all strains/cell types tested
- Remarks:
- Migrated from field 'Test system'.
Applicant's summary and conclusion
- Conclusions:
- Interpretation of results (migrated information):
negative
The negative and strain-specific positive control values indicate that the test conditions were adequate and that the metabolic activation system functioned properly.
It is concluded that this test is valid and that Tallownitrile is not mutagenic in the Salmonella typhimurium reverse mutation assay and in the Escherichia coli reverse mutation assay. - Executive summary:
Dodecanenitril was tested for mutagenicity with the strains TA 100, TA 1535, TA 1537, TA 1538, TA 98 of Salmonella typhimurium and Escherichia coli WP2uvrA.
The mutagenicity studies were conducted in the absence and inthepresence of a metabolizing system derived from rat liver homogenate. A dose range of 6 different doses from 0.16 microgram/plate to 5000 or 10000 microgram/plate was used.
Control plates without mutagen showed that the number of spontaneous revertant colonies was similar to that described in the literature. All the positive control compounds gave the expected increase in the number of revertant colonies.
Toxicity: The test compound proved to be very toxic to the bacterial strains at 100 microgram/plate. 5000 microgram/plate was chosen as top dose level for the mutagenicity study.
Mutagenicity: In the absence of the metabolic activation system the test compound did not show a dose dependent increase in the number of revertants in any of the bacterial strains. Also in the presence of a metabolic activation system, treatment of the cells with Dodecanenitrile did not result in relevant increases in the number of revertant colonies.
Summarizing. it can be stated that Dodecanenitrile is not mutagenic in these bacterial test systems either with or without exogenous metabolic activation at the dose levels investigated.
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