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EC number: 946-945-0 | CAS number: -
- 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 mammalian cells
- Remarks:
- Type of genotoxicity: gene mutation
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Mar - Apr 2002
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP / guideline study with no deficiencies
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 004
- Report date:
- 2004
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 476 (In Vitro Mammalian Cell Gene Mutation Test)
- Deviations:
- no
- GLP compliance:
- yes
- Type of assay:
- mammalian cell gene mutation assay
Test material
- Reference substance name:
- Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methyl-1-propen-1-yl)-, (3-phenoxyphenyl)methyl ester, (1R)-
- Cas Number:
- 188023-86-1
- Molecular formula:
- C23H26O3
- IUPAC Name:
- Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methyl-1-propen-1-yl)-, (3-phenoxyphenyl)methyl ester, (1R)-
- Test material form:
- liquid
Constituent 1
- Specific details on test material used for the study:
- Purity according to analytical certificate: 97.9%
Isomers: 16.7% d-cis isomer, 79.7% d-trans isomer, 1.0% l-trans isomer, 2.6% l-cis isomer
In study report falsely reported as CAS 26002-80-2.
Method
- Target gene:
- thymidine kinase
Species / strain
- Species / strain / cell type:
- mouse lymphoma L5178Y cells
- Details on mammalian cell type (if applicable):
- - Type and identity of media: RPMI 1640
- Properly maintained: yes
- Periodically checked for Mycoplasma contamination: yes
- Periodically checked for karyotype stability: no
- Periodically "cleansed" against high spontaneous background: not reported
- Metabolic activation:
- with and without
- Metabolic activation system:
- Liver S9 fraction from phenobarbital/ß-naphoflavone treated male rats
- Test concentrations with justification for top dose:
- Assay 1 (-S9, 3 h): 5, 10, 20, 40, 60, 80 µg/mL
(+S9, 3 h): 5, 10, 20, 40, 80 µg/mL
Assay 2 (-S9, 24 h): 2.5, 5, 10, 20, 30, 40 µg/mL
(+S9, 3 h): 11.9, 17.8, 26.7, 40, 60 µg/mL - Vehicle / solvent:
- - Vehicle(s)/solvent(s) used: DMSO
- Justification for choice of solvent/vehicle: preferred vehicle for non-water-soluble substances
Controls
- Untreated negative controls:
- no
- Negative solvent / vehicle controls:
- yes
- True negative controls:
- no
- Positive controls:
- yes
- Positive control substance:
- benzo(a)pyrene
- methylmethanesulfonate
- Details on test system and experimental conditions:
- METHOD OF APPLICATION: in medium
DURATION
- Exposure duration: 3 h or 24 h
- Expression time (cells in growth medium): 2 days
- Selection time (if incubation with a selection agent): 12 - 14 days
SELECTION AGENT (mutation assays): 5-trifluorothymidine
NUMBER OF REPLICATIONS: 2
DETERMINATION OF CYTOTOXICITY
- Method: cloning efficiency; relative total growth
OTHER EXAMINATIONS:
- Colony sizing - Evaluation criteria:
- A test is considered positive if
- the mutant frequency at one or more doses is statistically significantly greater than for the negative controls
- there is a significant dose-relationship as indicated by the linear trend analysis - Statistics:
- According to UKEMS guidelines
- Test for consistency between plates (chi² distribution)
- Heterogeneity factor for replicate cultures (H)
- Test for overall consistency
- Updated heterogeneity factors
- Comparison of each treatment with the control
- Test for linear trend
Results and discussion
Test results
- Key result
- Species / strain:
- mouse lymphoma L5178Y cells
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- cytotoxicity
- Remarks:
- at >= 40 µg/mL
- Vehicle controls validity:
- valid
- Untreated negative controls validity:
- not examined
- Positive controls validity:
- valid
- Additional information on results:
- TEST-SPECIFIC CONFOUNDING FACTORS
- Effects of pH: no change due to test substance
- Effects of osmolality: no change due to test substance
COMPARISON WITH HISTORICAL CONTROL DATA:
Mutant frequencies for solvent and positive controls were in the range of repective historical controls.
Any other information on results incl. tables
Table 1: 3 h exposure - Without Metabolic Activation
Concentration |
Relative survival [%] |
Relative Total Growth [%] |
Mutants per 1E+06 cells |
P-Value |
Quotient large / small colonies |
0 (DMSO) |
100 |
100 |
60.42 |
– |
0.28 |
5.00 |
97 |
109 |
58.89 |
NS |
– |
10.0 |
84 |
100 |
61.14 |
NS |
– |
20.0 |
77 |
69 |
64.34 |
NS |
– |
40.0 |
10 |
7 |
80.10 |
NS |
– |
60.0 |
3 |
1 |
139.2 |
tox |
– |
80.0 |
2 |
1 |
118.9 |
tox |
– |
MMS, 10.0 |
73 |
31 |
427.6 |
– |
0.33 |
MMS: methylmethanesulphonate, NS: not significant, tox: excessive toxicity |
Table 2: 24 h exposure - Without Metabolic Activation
Concentration |
Relative survival [%] |
Relative Total Growth [%] |
Mutants per 1E+06 cells |
P-Value |
Quotient large / small colonies |
0 (DMSO) |
100 |
100 |
53.43 |
– |
0.24 |
2.50 |
110 |
103 |
39.67 |
NS |
– |
5.00 |
99 |
90 |
42.85 |
NS |
– |
10.0 |
90 |
88 |
36.73 |
NS |
– |
20.0 |
91 |
89 |
32.55 |
NS |
– |
30.0 |
63 |
62 |
35.69 |
NS |
– |
40.0 |
33 |
36 |
37.34 |
NS |
– |
MMS, 5.00 |
63 |
73 |
381.7 |
– |
0.41 |
MMS: methylmethanesulphonate, NS: not significant |
Table 3: 3 h exposure - With Metabolic Activation (1st assay)
Concentration |
Relative survival [%] |
Relative Total Growth [%] |
Mutants per 1E+06 cells |
P-Value |
Quotient large / small colonies |
0 (DMSO) |
100 |
100 |
76.46 |
– |
0.22 |
5.00 |
100 |
113 |
67.90 |
NS |
– |
10.0 |
100 |
103 |
57.72 |
NS |
– |
20.0 |
85 |
98 |
74.99 |
NS |
– |
40.0 |
71 |
72 |
70.11 |
NS |
– |
80.0 |
4 |
4 |
91.09 |
tox |
– |
B[a]P, 2.00 |
50 |
35 |
623.8 |
– |
0.34 |
B[a]P: benzo[a]pyrene, NS: not significant, tox: excessive toxicity |
Table 4: 3 h exposure - With Metabolic Activation (2nd assay)
Concentration |
Relative survival [%] |
Relative Total Growth [%] |
Mutants per 1E+06 cells |
P-Value |
Quotient large / small colonies |
0 (DMSO) |
100 |
100 |
44.88 |
– |
0.15 |
11.9 |
81 |
96 |
42.40 |
NS |
– |
17.8 |
81 |
85 |
38.52 |
NS |
– |
26.7 |
90 |
81 |
48.52 |
NS |
– |
40.0 |
56 |
50 |
48.76 |
NS |
– |
60.0 |
24 |
20 |
58.89 |
NS |
– |
B[a]P, 2.00 |
42 |
47 |
345.8 |
– |
0.44 |
B[a]P: benzo[a]pyrene, NS: not significant |
Applicant's summary and conclusion
- Conclusions:
- The test substance is negative in the mouse lymphoma assay, with and without metabolic activation.
- Executive summary:
The test item D-Phenothrin was examined for mutagenic activity by assaying for the induction of 5-trifluorothyrnidine resistant mutants in mouse lymphoma L5178Y cells after in vitro treatment (in the absence and presence of S9 metabolic activation) using a fluctuation method. Test item solutions were prepared using dimethylsulphoxide.
A preliminary cytotoxicity assay was performed. The test item was assayed at a maximum dose-level of 313 µg/mL and a wide range of lower dose-levels: 156, 78.1, 39.1, 19.5, 9.77, 4.88, 2.44 and 1.22 µg/mL. Upon addition of the test item to the cultures precipitation was observed at the two higher dose-levels (313 and 156 µg/mL) both in the absence and presence of S9 mix. At the end of the treatment incubation period, precipitation was present at the same dose-levels. Using the short treatment time in the presence of S9 metabolic activation, severe toxicity, reducing survival to 1% of the negative control value, was observed at the two higher concentrations, while at the next lower dose-level (78.1 µg/mL) survival was reduced to 24%. No relevant toxicity was observed at the remaining concentrations. In the absence of S9 metabolic activation, using a short treatment time (3 hours), severe toxicity was observed at the three higher concentrations reducing survival to less than 10% of the concurrent negative control value. At the next lower concentration (39.1 µg/mL) moderate toxicity, reducing survival to 55% of the negative control value, was observed. Using a long treatment time (24 hours) no cells survived at the three higher concentrations. Marked toxicity reducing survival to 23% of the control was observed at 39.1 µg/mL, while no toxicity was observed at the remaining concentrations.
Two independent assays for mutation at the TK locus were performed using dose-levels described in the following table:
Assay 1: 3 hours at dose levels 80.0, 60.0, 40.0, 20.0, 10.0, and 5.0 µg/mL without S9 and 80.0, 40.0, 20.0, 10.0, and 5.0 µg/mL with S9
Assay 2: 24 hours at dose levels 40.0, 30.0, 20.0, 10.0, 5.0, and 2.5 µg/mL without S9, and 3 hours at 60.0, 40.0, 26.7, 17.8, and 11.9 µg/mL with S9
Both in the absence and presence of S9 metabolic activation no statistically significant increases in mutant frequency were observed following treatment with the test item at any dose-level and treatment time.
Negative and positive control treatments were included in each mutation experiment in the absence and presence of S9 metabolism. The mutant frequencies in the negative control cultures fell within the normal range. Marked increases were obtained with the positive control treatments indicating the correct functioning of the assay system.
It is concluded that D-Phenothrin does not induce mutation at the TK locus of L5178Y mouse lymphoma cells in vitro in the absence or presence of S9 metabolic activation, under the reported experimental conditions.
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