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EC number: 500-303-2 | CAS number: 115340-85-7 1 - 4.5 moles ethoxylated
- 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
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2018-04-10 to 2018-07-11
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 487 (In vitro Mammalian Cell Micronucleus Test)
- Version / remarks:
- 2016-07-29
- GLP compliance:
- yes
- Type of assay:
- in vitro mammalian cell micronucleus test
Test material
- Reference substance name:
- 4,4'-Isopropylidenediphenol, ethoxylated, esters with fatty acids, coco
- EC Number:
- 500-303-2
- EC Name:
- 4,4'-Isopropylidenediphenol, ethoxylated, esters with fatty acids, coco
- Cas Number:
- 115340-85-7
- IUPAC Name:
- 4,4'-Isopropylidenediphenol, ethoxylated, esters with fatty acids, coco
- Test material form:
- liquid
Constituent 1
- Specific details on test material used for the study:
- SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material:
R-127 / batch 180131
- Expiration date of the lot/batch:
2019-01-31
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material:
Dry and dark at ambient temperature (10 – 30 °C)
TREATMENT OF TEST MATERIAL PRIOR TO TESTING
- Treatment of test material prior to testing:
no
Method
Species / strain
- Species / strain / cell type:
- other: Chinese hamster, ovary fibroblast cell line
- Details on mammalian cell type (if applicable):
- CELLS USED
The test system used in the study was CHO-K1, Cricetulus griseus (Chinese hamster) ovary fibroblast cell line (ATCC CCL-61), passage 6.
The karyotype features of the test system CHO-K1 is 2n = 22.
MEDIA USED
CHO-K1 cells was maintained in the complete growth medium (Ham’s F12K medium-Kaighn’s modification with 10% fetal bovine serum and 100 u/ml Penicillin and 100 µg/ml of Straptomycin) in exponentially proliferating status at 37oC, 5% CO2.
- Metabolic activation:
- with and without
- Metabolic activation system:
- S) mix
- Test concentrations with justification for top dose:
- 5 µl/ml. Experience with negative and positive control substances.
- Vehicle / solvent:
- - Vehicle(s)/solvent(s) used:DMSO
- Justification for choice of solvent/vehicle: Good solubiliy in DMSO
Controls
- Untreated negative controls:
- yes
- Negative solvent / vehicle controls:
- yes
- True negative controls:
- yes
- Positive controls:
- yes
- Positive control substance:
- cyclophosphamide
- mitomycin C
- other: colchicine
- Details on test system and experimental conditions:
- Cell exposure procedure
After incubating the subculture of CHO-K1 cells for about 24 hrs, the complete growth medium was removed and immediately replaced by treatment medium (Ham’s F12K medium-Kaighn’s modification with 100 u/ml Penicillin and 100 µg/ml of Streptomycin). The test, negative control and positive control substances were added the treatment medium, respectively.
Exposure was performed with and without metabolic activation for 3 hours, and without metabolic activation for 20 hours (1.5 to 2.0 normal cell cycles). A co-factor supplemented post-mitochondrial fraction (S9) from the liver of Aroclor 1254 induced Sprague-Dawley rats was used as metabolic activation system. The concentration of S9 fraction in S9 mixture was 10%.
After 3- hr cell exposure, the treatment medium was removed; the cells were washed, added with fresh complete growth medium and cytoB at the concentration of 3 µg / ml for another 18- 20 hrs (i.e.,1.5- 2.0 normal cell cycles after the beginning of treatment).
For 20- hr cell exposure (1.5- 2.0 normal cell cycle), the cells were treated in the treatment medium and cytoB at the concentration of 3 µg / ml for 20 hours (1.5- 2.0 normal cell cycles). - Rationale for test conditions:
- Guideline OECD 487
Results and discussion
Test results
- Key result
- Species / strain:
- Chinese hamster Ovary (CHO)
- Remarks:
- CHO-K1
- Metabolic activation:
- with and without
- Genotoxicity:
- ambiguous
- Cytotoxicity / choice of top concentrations:
- cytotoxicity
- Remarks:
- cytotoxicity at high dose level at 20 h exposure without S9 mix is 60 %
- Vehicle controls validity:
- valid
- Untreated negative controls validity:
- valid
- Positive controls validity:
- valid
Applicant's summary and conclusion
- Conclusions:
- Based on the above study, using 5.0 µl/ml, 1.7 µl/ml and 0.6 µl/ml of test item (dissolved in DMSO) as test substances, the test item - 4, 4’-Isopropylidenediphenol, ethoxylated, esters with fatty acids, coco, induced micronucleus formation to the test system CHO-K1 at 3-hr exposure without metabolic activation with doubling the number of micronuclei at the highest dose compared to the negative control.
At the 3-hr exposure with metabolic activation and 20-hr exposure without metabolic activation only 10 micronuclei more were created at the highest dose compared to the control. Furthermore it has to considered that cytotoxicity is 60% at 20-hr exposure without metabolic activation at the highest dose. According to the OECD guideline care should be taken in interpreting positive results only found in the higher end of this 55 ± 5% cytotoxicity range. In addition, the number of micronuclei at 20-hr exposure without metabolic activation increases inversely with the concentration and corresponds to increasing cytotoxicity with the concentration.
Therefore, based on the above study, the induction of micronucleus formation by the test item - 4, 4’-Isopropylidenediphenol, ethoxylated, esters with fatty acids, coco, to the test system CHO-K1 at 3-hr exposure with and without metabolic activation and 20-hr exposure without metabolic activation is considered not to be clearly positive as a statistically significant increase in micronucleus formation compared with the concurrent negative control cannot be exhibited. Further tests are necessary for clarification. - Executive summary:
The substance 4, 4’-Isopropylidenediphenol, ethoxylated, esters with fatty acids, coco, was tested in a study according to OECD 487.
In the study, using CHO-K1 as test system and 5.0 µl/ml, 1.7 µl/ml and 0.6 µl/ml of test item (dissolved in DMSO) as test substances at 3- hr exposure with and without S9 mixture,
a) the number of micronuclei in the presence of negative control substance was significantly lower than that of the positive control substance;
b) there was dose-related increase in the number of micronuclei formed by the test substance comparing with negative control. But a significance cannot be determined based on this study performance.
In the study, using CHO-K1 as test system and 5.0 µl/ml, 1.7 µl/ml and 0.6 µl/ml of test item (dissolved in DMSO) as test substances at 20- hr exposure without S9 mixture,
a) the number of micronuclei in the presence of negative control substance was significantly lower than that of the positive control substance;
b) there was an inverse dose-related increase in the number of micronuclei formed by the test substance comparing with negative control.
Therefore, based on the above study, using 5.0 µl/ml, 1.7 µl/ml and 0.6 µl/ml of test item (dissolved in DMSO) as test substances, the induction of micronucleus formation by the test item - 4, 4’-Isopropylidenediphenol, ethoxylated, esters with fatty acids, coco, to the test system CHO-K1 at 3-hr exposure with and without metabolic activation and 20-hr exposure without metabolic activation is considered not to be clearly positive as a statistically significant increase in micronucleus formation compared with the concurrent negative control cannot be exhibited. Further tests are necessary for clarification.
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