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EC number: 205-527-1 | CAS number: 142-19-8
- 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
Genetic toxicity: in vitro
Administrative data
- Endpoint:
- in vitro cytogenicity / micronucleus study
- Remarks:
- Type of genotoxicity: chromosome aberration
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2009-10-28 till 2009-12-17
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP guideline study in accordance with OECD TG
- Justification for type of information:
- refer to analogue justification provided in IUCLID section 13
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
- Report date:
- 2010
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: OECD Guideline for Testing of Chemicals, December 13, 2007, Draft Proposal for a new Guideline No. 487 “In vitro Mammalian Cell Micronucleus Test” (3rd version).
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- signed by Hessisches Ministerium für Umwelt, ländlichen Raum und Verbraucherschutz (2009-03-30)
- Type of assay:
- in vitro mammalian cell micronucleus test
Test material
- Reference substance name:
- Allyl hexanoate
- EC Number:
- 204-642-4
- EC Name:
- Allyl hexanoate
- Cas Number:
- 123-68-2
- Molecular formula:
- C9H16O2
- IUPAC Name:
- allyl hexanoate
Constituent 1
Method
- Target gene:
- not applicable
Species / strain
- Species / strain / cell type:
- lymphocytes: from human donors
- Details on mammalian cell type (if applicable):
- Blood samples were obtained from healthy donors not receiving medication. For this study, blood was collected from a 27 year-old male donor for the first experiment and from a 29 year-old female donor for Experiment II. Blood samples were drawn by venous puncture and collected in heparinised tubes.
- Type and identity of media: The culture medium was DMEM:F12 (Dulbecco's modified eagle medium/ Ham's F12 medium; mixture 1:1) already supplemented with 15 mM HEPES. The antibiotic solution contained 10,000 U/mL penicillin and 10,000 µg/mL streptomycin. Additionally, the medium was supplemented with the mitogen Phytohemagglutinin (PHA, final concentration 3 µg/mL, SEROMED), 10 % FBS (fetal bovine serum), the anticoagulant heparin (25,000 U.S.P.-U/mL) and L-glutamin 200 mM. All incubations were done at 37 °C in a humidified atmosphere with 5.5 % CO2 (94.5 % air).
- Properly maintained: yes
Treatments were commence at around 44 - 48 hours after culture initiation when the cells are actively proliferating. - Additional strain / cell type characteristics:
- not applicable
- Metabolic activation:
- with and without
- Metabolic activation system:
- S9 mix
- Test concentrations with justification for top dose:
- Pre-Experiment:
- without metabolic activation, 4 hours treatment: 10.2, 17.8, 31.2, 54.7, 95.7, 167.4, 292.9, 512.7, 897.1 and 1570.0 µg/mL
- with metabolic activation, 4 hours treatment: 10.2, 17.8, 31.2, 54.7, 95.7, 167.4, 292.9, 512.7, 897.1 and 1570.0 µg/mL
Since the cultures fulfilled the requirements for cytogenetic evaluation, this preliminary test was designated Experiment I.
Dose selection of Experiment II was based on the results obtained in Experiment I.
Experiment II:
- without metabolic activation, 20 hours treatment: 31.2, 54.7, 95.7, 167.4, 292.9, 512.7, 897.1 and 1570.0 µg/mL
- with metabolic activation, 4 hours treatment: 95.7, 167.4, 292.9, 512.7, 897.1 and 1570.0 µg/mL
For more detail see table under "any other information on material and methods incl. tables". - Vehicle / solvent:
- - Vehicle(s)/solvent(s) used: On the day of the experiment (immediately before treatment), the test item was dissolved in DMSO (E. MERCK, 64293 Darmstadt, Germany; purity 99.9 %). The final concentration of DMSO in the culture medium was 0.5 % (v/v).
- Justification for choice of solvent/vehicle: The solvent was chosen to its solubility properties and its relative non-toxicity to the cell cultures.
Controlsopen allclose all
- Untreated negative controls:
- no
- Negative solvent / vehicle controls:
- yes
- True negative controls:
- no
- Positive controls:
- yes
- Positive control substance:
- other: Demecolcin; 4.0 µg/mL (Exp.I) and 0.05 µg/mL (Exp.II), dissolved in deionised water
- Remarks:
- without metabolic activation
- Untreated negative controls:
- no
- Negative solvent / vehicle controls:
- yes
- True negative controls:
- no
- Positive controls:
- yes
- Positive control substance:
- mitomycin C
- Remarks:
- without metabolic activation Migrated to IUCLID6: 1.0 µg/mL (Exp.I) and 0.3 µg/mL (Exp.II), dissolved in deionised water
- Untreated negative controls:
- no
- Negative solvent / vehicle controls:
- yes
- True negative controls:
- no
- Positive controls:
- yes
- Positive control substance:
- cyclophosphamide
- Remarks:
- with metabolic activation Migrated to IUCLID6: 12.5 µg/mL (Exp. I) and 10.0 µg/mL (Exp. II), dissolved in 0.9% saline
- Details on test system and experimental conditions:
- METHOD OF APPLICATION: in medium
DURATION
- Exposure duration: 4 hours (+16 hours recovery period) or 20 hours; Cells were either treated for 4 hours in the absence of S9 mix (Exp.I) and in the presence of S9 mix (Exp.I and II) or for 20 hours without S9 mix (Exp.II).
The culture medium was replaced with serum-free medium (Experiment I without S9 mix; Experiment I and II in with S9 mix) or complete medium with 10 % FBS (v/v) (Experiment II without S9 mix), containing the test item.
- Recovery period: After treatment for 4 hours, the cells were re-suspended in "saline G" and incubatet for further 16 hours.
- Cytokinesis blocker: After washing, the cells were re-suspended in complete culture medium containing Cytochalasin B (4 µg/mL) and cultured another approximately 20 hours until preparation.
- Fixation time (start of exposure up to fixation or harvest of cells): The cultures were harvested by centrifugation 40 hours after beginning of treatment. Thereafter the cells were fixed and slides were prepared.
STAIN (for cytogenetic assays): The cells were stained with Giemsa.
NUMBER OF REPLICATIONS: In each experimental group two parallel cultures were analysed.
NUMBER OF CELLS EVALUATED: At least 1000 binucleate cells per culture were scored for cytogenetic damage on coded slides.
DETERMINATION OF CYTOTOXICITY
- Method: other: cytokinesis block proliferation index
A preliminary cytotoxicity test was performed to determine the concentrations to be used in the main experiment. Cytotoxicity is characterised by the percentages of reduction in the cytokinesis block proliferation index (CBPI) in comparison with the controls (% cytostasis) by counting 500 cells per culture in duplicate. The experimental conditions in this pre-experimental phase were identical to those required and described for the mutagenicity assay.
The pre-experiment was performed with 10 concentrations of the test item and the negative, solvent and positive controls. All cell cultures were set up in duplicate. Exposure time was 4 hours (with and without S9 mix) and the cells were prepared 40 hours after start of the exposure.
OTHER EXAMINATIONS:
The frequency of micronucleated cells was reported as % micronucleated cells.
OTHER: Evaluation of the slides was performed using NIKON microscopes with 40 x objectives. The micronuclei were counted in cells showing a clearly visible cytoplasm area. - Evaluation criteria:
- A test item can be classified as non-mutagenic if:
- the number of micronucleated cells in all evaluated dose groups is in the range of the laboratory’s historical control data and
- no statistically significant or concentration-related increase in the number of micronucleated cells is observed.
A test item can be classified as mutagenic if:
- the number of micronucleated cells is not in the range of the historical laboratory control data and
- either a concentration-related increase of micronucleated cells in three test groups or a statistically significant increase of the number of micronucleated cells is observed. - Statistics:
- Statistical significance was confirmed by means of the Chi square test. However, both biological and statistical significance should be considered together.
Results and discussion
Test resultsopen allclose all
- Species / strain:
- lymphocytes: from humans
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Remarks:
- No relevant increase in the number of micronucleated cells was observed after treatment with the test item.
- Cytotoxicity / choice of top concentrations:
- no cytotoxicity
- Remarks:
- In Experiment I no cytotoxicity was observed up to the highest applied concentrations.
- Vehicle controls validity:
- valid
- Untreated negative controls validity:
- not applicable
- Positive controls validity:
- valid
- Species / strain:
- lymphocytes: from humans
- Metabolic activation:
- with
- Genotoxicity:
- negative
- Remarks:
- No relevant increase in the number of micronucleated cells was observed after treatment with the test item.
- Cytotoxicity / choice of top concentrations:
- no cytotoxicity
- Remarks:
- In Experiment II in the presence of S9 mix no cytotoxicity was observed up to the highest applied concentrations.
- Vehicle controls validity:
- valid
- Untreated negative controls validity:
- not applicable
- Positive controls validity:
- valid
- Species / strain:
- lymphocytes: from humans
- Metabolic activation:
- without
- Genotoxicity:
- negative
- Remarks:
- No relevant increase in the number of micronucleated cells was observed after treatment with the test item.
- Cytotoxicity / choice of top concentrations:
- cytotoxicity
- Remarks:
- Cytotoxicity was observed at the two highest evaluated concentrations. However, in Experiment II in the presence of S9 mix, the highest applied concentration was not evaluable due to a reduced cell number.
- Vehicle controls validity:
- valid
- Untreated negative controls validity:
- not applicable
- Positive controls validity:
- valid
- Additional information on results:
- TEST-SPECIFIC CONFOUNDING FACTORS
- Precipitation: In the pre-test on toxicity, precipitation of the test item was observed at the end of treatment at 512.7 µg/mL and above in the presence of S9 mix.
RANGE-FINDING/SCREENING STUDIES: Since the cultures fulfilled the requirements for cytogenetic evaluation, this preliminary test was designated Experiment I.
COMPARISON WITH HISTORICAL CONTROL DATA: In Experiment I, in the presence of S9 mix and in Experiment II in the absence of S9 mix, statistically significant increases in cells carrying micronuclei were observed. These values were in the range of the laboratory’s historical solvent control data and therefore considered as being biologically irrelevant.
ADDITIONAL INFORMATION ON CYTOTOXICITY: no further data - Remarks on result:
- other: all strains/cell types tested
- Remarks:
- Migrated from field 'Test system'. Remarks: Experiment I
Applicant's summary and conclusion
- Conclusions:
- Interpretation of results (migrated information):
negative
In conclusion, it can be stated that under the experimental conditions reported, the test item did not induce micronuclei as determined by the in vitro micronucleus test in human lymphocytes.
Therefore, Allyl capronate (Sym09 /611045) is considered to be non-aneugenic/clastogenic in this in vitro micronucleus test, when tested up to cytotoxic or precipitating concentrations.
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