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EC number: 406-670-4 | CAS number: 61203-83-6
- 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
![](https://echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_toxicological-information.png)
Genetic toxicity: in vitro
Administrative data
- Endpoint:
- in vitro gene mutation study in bacteria
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- May 16, to July 13, 1990
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 990
- Report date:
- 1990
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 471 (Bacterial Reverse Mutation Assay)
- Version / remarks:
- 1981
- Deviations:
- no
- GLP compliance:
- yes
- Type of assay:
- bacterial reverse mutation assay
Test material
- Reference substance name:
- 4-pentylcyclohexanone
- EC Number:
- 406-670-4
- EC Name:
- 4-pentylcyclohexanone
- Cas Number:
- 61203-83-6
- Molecular formula:
- C11H20O
- IUPAC Name:
- 4-pentylcyclohexan-1-one
Constituent 1
Method
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
- Metabolic activation:
- with and without
- Metabolic activation system:
- Due to migration, the value was transferred to one of the current document's attachments
- Test concentrations with justification for top dose:
- 1st series of experiments:
5, 10, 50, 250, 500, and 750 µg/plate
2nd and additional series of experiments:
1, 5, 10, 50, 250, and 375 µg/plate (TA 98, TA 1535, TA 1537, and TA 1538)
1, 5, 10, 50, 250, and 500 µg/plate (TA 100)
The test material concentrations used were selected according to the OECD Guideline for this test system. They were chosen to cover a broad concentration range including, if possible, also a toxic concentration. - Vehicle / solvent:
- - Vehicle/solvent used: The test material was dissolved in dimethylsulfoxide (DMSO).
Controlsopen allclose all
- Untreated negative controls:
- no
- Negative solvent / vehicle controls:
- yes
- True negative controls:
- no
- Positive controls:
- yes
- Positive control substance:
- methylmethanesulfonate
- Remarks:
- without S9 mix
- Untreated negative controls:
- no
- Negative solvent / vehicle controls:
- yes
- True negative controls:
- no
- Positive controls:
- yes
- Positive control substance:
- 2-nitrofluorene
- Remarks:
- without S9 mix
- Untreated negative controls:
- no
- Negative solvent / vehicle controls:
- yes
- True negative controls:
- no
- Positive controls:
- yes
- Positive control substance:
- other: 4-Nitro-1,2-phenylene diamine
- Remarks:
- without S9 mix
- Untreated negative controls:
- no
- Negative solvent / vehicle controls:
- yes
- True negative controls:
- no
- Positive controls:
- yes
- Positive control substance:
- sodium azide
- Remarks:
- without S9 mix
- Untreated negative controls:
- no
- Negative solvent / vehicle controls:
- yes
- True negative controls:
- no
- Positive controls:
- yes
- Positive control substance:
- 9-aminoacridine
- Remarks:
- without S9 mix
- Untreated negative controls:
- no
- Negative solvent / vehicle controls:
- yes
- True negative controls:
- no
- Positive controls:
- yes
- Positive control substance:
- other: Daunomycin
- Remarks:
- without S9 mix
- Untreated negative controls:
- no
- Negative solvent / vehicle controls:
- yes
- True negative controls:
- no
- Positive controls:
- yes
- Positive control substance:
- other: 2-Aminoanthracene
- Remarks:
- with S9 mix
- Details on test system and experimental conditions:
- NUMBER OF REPLICATIONS:
- Number of cultures per concentration: 4
- Number of independent experiments : 3
METHOD OF TREATMENT/ EXPOSURE:
- Test substance added in agar (plate incorporation)
TREATMENT AND HARVEST SCHEDULE:
- Exposure duration/duration of treatment: 48 h
METHODS FOR MEASUREMENT OF CYTOTOXICITY
- Method: reduction in the number of spontaneous revertants, clearing of the background lawn, reduced survival of treated cultures
Results and discussion
Test resultsopen allclose all
- Key result
- Species / strain:
- S. typhimurium TA 1535
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- cytotoxicity
- Remarks:
- at 500 µg/plate with and without S9 mix
- Vehicle controls validity:
- valid
- Untreated negative controls validity:
- not examined
- Positive controls validity:
- valid
- Key result
- Species / strain:
- S. typhimurium TA 1537
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- cytotoxicity
- Remarks:
- at 500 µg/plate with and without S9 mix
- Vehicle controls validity:
- valid
- Untreated negative controls validity:
- not examined
- Positive controls validity:
- valid
- Key result
- Species / strain:
- S. typhimurium TA 100
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- cytotoxicity
- Remarks:
- from 500 µg/plate onwards with and without S9 mix
- Vehicle controls validity:
- valid
- Untreated negative controls validity:
- not examined
- Positive controls validity:
- valid
- Key result
- Species / strain:
- S. typhimurium TA 1538
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- cytotoxicity
- Remarks:
- at 500 µg/plate with and without S9 mix
- Vehicle controls validity:
- valid
- Untreated negative controls validity:
- not examined
- Positive controls validity:
- valid
- Key result
- Species / strain:
- S. typhimurium TA 98
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- cytotoxicity
- Remarks:
- at 375 µg/plate with and without S9 mix
- Vehicle controls validity:
- valid
- Untreated negative controls validity:
- not examined
- Positive controls validity:
- valid
- Additional information on results:
- RANGE-FINDING/SCREENING STUDIES: In a range finding test (using S.typh. TA 100 and TA 1535 without metabolic activation) toxicity was investigated in a wide range of test material concentrations (50 - 10000 µg/plate). Toxicity normally becomes evident by a reduction in the number of spontaneous revertants, a clearing of the background lawn, or by reduced survival of treated cultures. These effects were observed with the test item in the range finding test at concentrations > 500 µg/plate.
Thus, in the first series of experiments the following concentrations were tested:
5, 10, 50, 250, 500, and 750 µg/plate.
As for the highest concentrations tested strong cytotoxic effects still were observed during the first series of experiments, the second and additional series of experiments were performed using the following concentrations:
TA 98, TA 1535, TA 1537, and TA 1538: 1, 5, 10, 50, 250, and 375 µg/plate
TA 100: 1, 5, 10, 50, 250, and 500 µg/plate
- Signs of toxicity
Because of cytotoxic effects only four concentrations were valid in the first series of experiments (except TA 100). As, however, five concentrations are recommended in the OECD- and EEC- Guidelines, an additional series of experiments was performed, using the same concentrations as in the second series.
- Individual plate counts
see table 1-4
- Mean number of revertant colonies per plate and standard deviation
see table 1-4
Any other information on results incl. tables
Table 1: Results of second series (TA100)
Without S-9 Mix
Conc.(µg/pl) |
Individual Values |
n |
Mean |
SD |
Pc |
Bg |
||||
|
0.0 |
124 |
127 |
140 |
144 |
4 |
134 |
9.7 |
- |
- |
|
1.0 |
113 |
144 |
135 |
137 |
4 |
132 |
13.4 |
- |
- |
|
5.0 |
123 |
123 |
120 |
125 |
4 |
123 |
2.1 |
- |
- |
|
10.0 |
139 |
148 |
154 |
149 |
4 |
148 |
6.2 |
- |
- |
|
50.0 |
153 |
162 |
152 |
163 |
4 |
158 |
5.8 |
- |
- |
|
250.0 |
118 |
120 |
108 |
117 |
4 |
116 |
5.3 |
- |
- |
|
500.0 |
55 |
74 |
70 |
59 |
4 |
65 |
9.0 |
- |
+ |
|
0.0 |
153 |
149 |
140 |
152 |
4 |
149 |
5.9 |
- |
- |
2-AA |
1.0 |
150 |
140 |
138 |
163 |
4 |
148 |
11.4 |
- |
- |
MMS |
500.0 |
1276 |
1295 |
1202 |
1128 |
4 |
1225 |
76.2 |
- |
- |
ENNG |
4.0 |
906 |
866 |
721 |
855 |
4 |
837 |
80.4 |
- |
- |
With S-9 Mix
Conc.(µg/pl) |
Individual Values |
n |
Mean |
SD |
Pc |
Bg |
||||
|
0.0 |
192 |
164 |
192 |
213 |
4 |
190 |
20.1 |
- |
- |
|
1.0 |
170 |
174 |
189 |
166 |
4 |
175 |
10.0 |
- |
- |
|
5.0 |
189 |
226 |
200 |
208 |
4 |
206 |
15.6 |
- |
- |
|
10.0 |
190 |
166 |
162 |
178 |
4 |
174 |
12.6 |
- |
- |
|
50.0 |
165 |
194 |
217 |
162 |
4 |
185 |
26.0 |
- |
- |
|
250.0 |
161 |
153 |
175 |
177 |
4 |
167 |
11.5 |
- |
- |
|
500.0 |
0 |
0 |
0 |
0 |
4 |
0 |
0.0 |
- |
+ |
|
0.0 |
201 |
190 |
166 |
179 |
4 |
184 |
15.0 |
- |
- |
2-AA |
1.0 |
541 |
624 |
528 |
637 |
4 |
583 |
55.9 |
- |
- |
Table 2: Results of second series (TA1535)
Without S-9 Mix
Conc.(µg/pl) |
Individual Values |
n |
Mean |
SD |
Pc |
Bg |
||||
|
0.0 |
7 |
16 |
13 |
19 |
4 |
14 |
5.1 |
- |
- |
|
1.0 |
19 |
9 |
16 |
8 |
4 |
13 |
5.4 |
- |
- |
|
5.0 |
26 |
21 |
18 |
13 |
4 |
20 |
5.4 |
- |
- |
|
10.0 |
20 |
20 |
18 |
20 |
4 |
20 |
1.0 |
- |
- |
|
50.0 |
16 |
28 |
8 |
7 |
4 |
15 |
9.7 |
- |
- |
|
250.0 |
7 |
9 |
6 |
17 |
4 |
10 |
5.0 |
- |
- |
|
375.0 |
2 |
9 |
8 |
1 |
4 |
5 |
4.1 |
- |
+ |
|
0.0 |
19 |
16 |
16 |
15 |
4 |
17 |
1.7 |
- |
- |
2-AA |
1.0 |
13 |
17 |
21 |
27 |
4 |
20 |
6.0 |
- |
- |
ENNG |
10.0 |
863 |
815 |
814 |
798 |
4 |
823 |
28.1 |
- |
- |
Ve-H2O |
|
17 |
17 |
17 |
18 |
4 |
17 |
0.5 |
- |
- |
NaN3 |
1.0 |
448 |
479 |
463 |
378 |
4 |
442 |
44.5 |
- |
- |
With S-9 Mix
Conc.(µg/pl) |
Individual Values |
n |
Mean |
SD |
Pc |
Bg |
||||
|
0.0 |
15 |
14 |
13 |
16 |
4 |
15 |
1.3 |
- |
- |
|
1.0 |
21 |
18 |
20 |
17 |
4 |
19 |
1.8 |
- |
- |
|
5.0 |
14 |
18 |
27 |
22 |
4 |
20 |
5.6 |
- |
- |
|
10.0 |
15 |
14 |
15 |
20 |
4 |
16 |
2.7 |
- |
- |
|
50.0 |
20 |
9 |
14 |
13 |
4 |
14 |
4.5 |
- |
- |
|
250.0 |
19 |
16 |
15 |
16 |
4 |
17 |
1.7 |
- |
- |
|
375.0 |
9 |
7 |
5 |
7 |
4 |
7 |
1.6 |
- |
+ |
|
0.0 |
21 |
7 |
26 |
15 |
4 |
17 |
8.2 |
- |
- |
2-AA |
1.0 |
141 |
122 |
118 |
137 |
4 |
130 |
11.2 |
- |
- |
Table 3: Results of second series (TA1537)
Without S-9 Mix
Conc.(µg/pl) |
Individual Values |
n |
Mean |
SD |
Pc |
Bg |
||||
|
0.0 |
5 |
3 |
4 |
6 |
4 |
5 |
1.3 |
- |
- |
|
1.0 |
3 |
3 |
4 |
2 |
4 |
3 |
0.8 |
- |
- |
|
5.0 |
5 |
6 |
5 |
2 |
4 |
5 |
1.7 |
- |
- |
|
10.0 |
3 |
1 |
3 |
2 |
4 |
2 |
1.0 |
- |
- |
|
50.0 |
6 |
7 |
7 |
10 |
4 |
8 |
1.7 |
- |
- |
|
250.0 |
6 |
2 |
4 |
4 |
4 |
4 |
1.6 |
- |
- |
|
375.0 |
1 |
0 |
1 |
2 |
4 |
1 |
0.8 |
- |
+ |
|
0.0 |
4 |
6 |
6 |
4 |
4 |
5 |
1.2 |
- |
- |
2-AA |
1.0 |
5 |
7 |
8 |
5 |
4 |
6 |
1.5 |
- |
- |
EtOH |
|
4 |
3 |
3 |
4 |
4 |
4 |
0.6 |
- |
- |
9-AA |
20 |
30 |
35 |
43 |
42 |
4 |
38 |
6.1 |
- |
- |
9-AA |
50 |
556 |
574 |
426 |
517 |
4 |
518 |
65.9 |
- |
- |
With S-9 Mix
Conc.(µg/pl) |
Individual Values |
n |
Mean |
SD |
Pc |
Bg |
||||
|
0.0 |
5 |
3 |
6 |
6 |
4 |
5 |
1.4 |
- |
- |
|
1.0 |
6 |
4 |
5 |
14 |
4 |
7 |
4.6 |
- |
- |
|
5.0 |
5 |
4 |
4 |
5 |
4 |
5 |
0.6 |
- |
- |
|
10.0 |
7 |
13 |
3 |
2 |
4 |
6 |
5.0 |
- |
- |
|
50.0 |
2 |
5 |
14 |
5 |
4 |
7 |
5.2 |
- |
- |
|
250.0 |
4 |
6 |
3 |
6 |
4 |
5 |
1.5 |
- |
- |
|
375.0 |
2 |
6 |
1 |
4 |
4 |
3 |
2.2 |
- |
+ |
|
0.0 |
9 |
4 |
5 |
4 |
4 |
6 |
2.4 |
- |
- |
2-AA |
1.0 |
41 |
55 |
61 |
44 |
4 |
50 |
9.4 |
- |
- |
Table 4: Results of second series (TA1538)
Without S-9 Mix
Conc.(µg/pl) |
Individual Values |
n |
Mean |
SD |
Pc |
Bg |
||||
|
0.0 |
5 |
2 |
9 |
4 |
4 |
5 |
2.9 |
- |
- |
|
1.0 |
8 |
6 |
3 |
7 |
4 |
6 |
2.2 |
- |
- |
|
5.0 |
5 |
3 |
9 |
3 |
4 |
5 |
2.8 |
- |
- |
|
10.0 |
2 |
4 |
4 |
8 |
4 |
5 |
2.5 |
- |
- |
|
50.0 |
6 |
6 |
4 |
2 |
4 |
5 |
1.9 |
- |
- |
|
250.0 |
3 |
7 |
6 |
3 |
4 |
5 |
2.1 |
- |
- |
|
375.0 |
0 |
0 |
1 |
2 |
4 |
1 |
1.0 |
- |
+ |
|
0.0 |
6 |
1 |
5 |
5 |
4 |
4 |
2.2 |
- |
- |
2-AA |
1.0 |
6 |
7 |
8 |
6 |
4 |
7 |
1.0 |
- |
- |
4-NP |
10.0 |
1299 |
1320 |
1205 |
1177 |
4 |
1250 |
69.9 |
- |
- |
2-NF |
5.0 |
783 |
741 |
543 |
388 |
4 |
614 |
183.3 |
- |
- |
With S-9 Mix
Conc.(µg/pl) |
Individual Values |
n |
Mean |
SD |
Pc |
Bg |
||||
|
0.0 |
14 |
14 |
21 |
8 |
4 |
14 |
5.3 |
- |
- |
|
1.0 |
7 |
14 |
7 |
4 |
4 |
8 |
4.2 |
- |
- |
|
5.0 |
9 |
9 |
16 |
5 |
4 |
10 |
4.6 |
- |
- |
|
10.0 |
c |
c |
c |
c |
0 |
- |
- |
- |
- |
|
50.0 |
5 |
9 |
8 |
5 |
4 |
7 |
2.1 |
- |
- |
|
250.0 |
6 |
5 |
7 |
8 |
4 |
7 |
1.3 |
- |
- |
|
375.0 |
1 |
1 |
8 |
4 |
4 |
4 |
3.3 |
- |
+ |
|
0.0 |
15 |
18 |
14 |
15 |
4 |
16 |
1.7 |
- |
- |
2-AA |
1.0 |
287 |
315 |
310 |
274 |
4 |
297 |
19.3 |
- |
- |
Applicant's summary and conclusion
- Conclusions:
- Under the test conditions used, the test item was not mutagenic in Salmonella typhimurium TA 98, TA 100, TA 1535, TA 1537, and TA 1538 with or without addition of S9 mix.
- Executive summary:
The investigations for mutagenic potential were performed according OECD TG 471 using Salmonella typhimurium TA 100, TA 98, TA 1535, TA 1537, and TA 1538 as tester strains. The plate incorporation test with and without addition of rat liver S-9 fraction (Aroclor-induced) was used.
The substance was tested in three series of experiments at the following concentrations:
First series of experiments: 5, 10, 50, 250, 500, and 750 µg/plate
Second and additional series of experiments:
1, 5, 10, 50, 250, and 375 µg/plate (TA 98, TA 1535, TA 1537, and TA 1538)
1, 5, 10, 50, 250, and 500 µg/plate (TA 100)
9-Aminoacridine, daunomycin, 1-ethyl-2-nitro-3-nitrosoguanidine, methyl methanesulfonate, 2-nitrofluorene, 4-nitro-1,2-phenylene diamine, and sodium azide served as positive control compounds for testing the bacteria. 2-Aminoanthracene was used for testing the bacteria and the activity of the S-9 preparation.
The positive controls showed normal reversion properties of all strains and good metabolic activity of the S-9 mix used.
With and without addition of S-9 as the metabolizing system, the substance did not show any mutagenic activity in the concentration range used.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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