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EC number: 211-471-9 | CAS number: 646-25-3
- 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
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- Nanomaterial pour density
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- Endpoint summary
- Stability
- Biodegradation
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- 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
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- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
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- Additional toxicological data

Genetic toxicity: in vitro
Administrative data
- Endpoint:
- in vitro cytogenicity / chromosome aberration study in mammalian cells
- Remarks:
- Type of genotoxicity: chromosome aberration
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2008-07-30 to 2008-08-14
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 008
- Report date:
- 2008
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 473 (In Vitro Mammalian Chromosome Aberration Test)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.10 (Mutagenicity - In Vitro Mammalian Chromosome Aberration Test)
- Deviations:
- no
- GLP compliance:
- yes
- Type of assay:
- in vitro mammalian chromosome aberration test
Test material
- Reference substance name:
- 1,10-Decanediamie
- IUPAC Name:
- 1,10-Decanediamie
- Reference substance name:
- Decamethylenediamine
- EC Number:
- 211-471-9
- EC Name:
- Decamethylenediamine
- Cas Number:
- 646-25-3
- Molecular formula:
- C10H24N2
- IUPAC Name:
- decane-1,10-diamine
- Test material form:
- other: crystalline solid
- Details on test material:
- purity >= 99 %
Constituent 1
Constituent 2
Method
- Target gene:
- not applicable
Species / strain
- Species / strain / cell type:
- Chinese hamster lung fibroblasts (V79)
- Details on mammalian cell type (if applicable):
- cells have a stable karyotype with a modal chromosome number of 22
supplied by Laboratory for Mutagenicity Testing, LMP, Technical University Darmstadt, 64287 Darmstadt, Germany - Additional strain / cell type characteristics:
- not applicable
- Metabolic activation:
- with and without
- Metabolic activation system:
- Phenobarbital and betanaphthoflavone induced Wistar rat liver (S9 homogenate)
- Test concentrations with justification for top dose:
- +/- S9 mix: 6.7, 13.5, 26.9, 53.8, 107.7, 215.4, 430.8, 861.5, 1723.0 µg/ml
- Vehicle / solvent:
- Ethanol, final concentration of ethanol in the culture medium was 0.5 % (v/v)
Controls
- Untreated negative controls:
- no
- Negative solvent / vehicle controls:
- yes
- Remarks:
- Ethanol
- True negative controls:
- no
- Positive controls:
- yes
- Positive control substance:
- ethylmethanesulphonate
- Remarks:
- positive control with metabolic activation: Cyclophoshamide
Migrated to IUCLID6: without metabolic activation
- Details on test system and experimental conditions:
- SYSTEM OF TESTING
- Species/cell type: Chinese hamster lung fibroblasts (V79) cells, obtained from Laboratory for Mutagenicity Testing, LMP, Technical University
Darmstadt, 64287 Darmstadt, Germany
- Metabolic activation system: S9 homogenate prepared from young male Wistar rat livers, co-induced with phenobarbital and betanaphthoflavone.
- No. of metaphases analyzed: 100 / culture except 50 for positive controls with chromosomal aberration rates > 50 % (excl. gaps)
ADMINISTRATION:
- Dosing: +/- S9 mix: 6.7, 13.5, 26.9, 53.8, 107.7, 215.4, 430.8, 861.5, 1723.0 µg/ml
- Pre-experiment :conditions were identical to those for the mutagenicity assay. Since the cultures could be used for cytogenetic evaluation, this
preliminary test was designated Experiment I.
- Number of replicates: 2
- Application: Approx. 5x10E5 cells each flask
Exposure periode: 4 hours,
Recovery: 14 hours
Preparation interval: 18 hours
- Positive and negative control groups and treatment:
negative/solvent: Ethanol, final concentration of ethanol in the culture medium was 0.5 % (v/v)
positive -S9: 900 µg/mL ethylmethanesulphonate
positive +S9: 1.4 µg/mL cyclophosphamide/l
- Preparation of cultures
Colcmid was added 15.5 hours after start of treatment, cells on the slides were treated 2.5 hours later with hypotonic solution for 20 min at 37°C . After incubation in the hypotonic solution the cells were fixed with a mixture of methanol and glacial acetic acid (3:1 parts, respectively). Per
experiment two slides per group were prepared. After preparation the cells were stained with Giemsa (E. Merck, 64293 Darmstadt, Germany).
- Evaluation criteria:
- CRITERIA FOR EVALUATING RESULTS:
(i) statistically significant increases in the incidence of cells bearing aberrations at any dose-level over the concurrent control, AND
(ii) the increases must exceed the historical control values, AND
(iii) the increases are reproduced in both replicate cultures - Statistics:
- Fisher's Exact Test
Results and discussion
Test results
- Species / strain:
- Chinese hamster lung fibroblasts (V79)
- Metabolic activation:
- with and without
- Genotoxicity:
- positive
- Cytotoxicity / choice of top concentrations:
- cytotoxicity
- Remarks:
- the following doses used for scoring of aberrations revealed cytotoxicity: 40 mg/l (cell viability reduced to 26% of the control); 20 mg/l (viability reduced to 55% of the control); other doeses: no relevant cytotoxicity
- Vehicle controls validity:
- valid
- Untreated negative controls validity:
- not examined
- Positive controls validity:
- valid
- Additional information on results:
- GENOTOXIC EFFECTS:
- the test item 1,10-Decanediamine induced structural chromosome aberrations in V79 cells in the absence and presence of S9 mix.
- No evidence of an increase in polyploid metaphases was noticed after treatment with the test item as compared to controls.
OTHER OBSERVATIONS:
- No precipitation of the test item in culture medium was observed.
- No relevant influence of the test item of the osmolarity was observed , the pH was adjusted to physiological values using small amounts of 2 M HCl at the concentration of 215.4, 430.8, 861.5, and 1723 μg/mL in the absence and presence of S9 mix (pH 7.5 to 9.1).
- Toxic effects indicated by reduced cell numbers were observed after 4 hours treatment with 430.8 μg/mL (43.9 % of control) in the absence of
S9 mix and with 861.5 μg/mL (32.0 % of control) in the presence of S9 mix. - Remarks on result:
- other: other: Chinese hamster lung fibroblasts (V79)
- Remarks:
- Migrated from field 'Test system'.
Any other information on results incl. tables
see attached document
Applicant's summary and conclusion
- Conclusions:
- Interpretation of results (migrated information):
positive
In conclusion, it can be stated that under the experimental conditions reported, the test item induced structural chromosome aberrations as
determined by the chromosome aberration test in V79 cells (Chinese hamster cell line) in vitro.
Therefore, decamethylenediamine is considered to be clastogenic in this chromosome aberration test in the absence and presence of S9 mix. - Executive summary:
This in vitro test was performed to assess the potential of decamethylenediamine to induce structural chromosome aberrations. Evaluation of cytogenetic damage induced in V79 cells (cell line from the lung of the Chinese Hamster) in the absence and the presence of metabolic activation was performed in one experiment at 18 hours preparation interval.
The test item, dissolved in ethanol, was assessed for its potential to induce structural chromosome aberrations in V79 cells of the Chinese hamster in vitro in one experiment. The following study design was performed:
Preparation Exposure Concentration
interval period in μg/m
18 hrs 4 hrs Without S9 mix 6.7 13.5 26.9 53.8 107.7 215.4 430.8 861.5 1723.0
18 hrs 4 hrs With S9 mix 6.7 13.5 26.9 53.8 107.7 215.4 430.8 861.5 1723.0
In each experimental group two parallel cultures were set up. 100 metaphases per culture were scored for structural chromosome aberrations.
The highest applied concentration in the pre-test on toxicity (1723 μg/mL; approx. 10 mM) was chosen with regard to the molecular weight of the test item with respect to the current OECD Guideline 473. Dose selection for the cytogenetic experiments was performed considering the toxicity data.
In the absence and presence of S9 mix clear cytotoxicity was observed at the highest evaluated concentrations. Clastogenicity was observed in the absence and presence of S9 mix. No evidence of an increase in polyploid metaphases was noticed after treatment with the test item as compared to the controls. Appropriate mutagens were used as positive controls. They induced statistically significant increases.
In conclusion, it can be stated that under the experimental conditions reported, the test item induced structural chromosome aberrations as determined by the chromosome aberration test in V79 cells (Chinese hamster cell line) in vitro.
Therefore, decamethylenediamine is considered to be clastogenic in this chromosome aberration test in the absence and presence of
S9 mix.
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