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EC number: 609-256-3 | CAS number: 365400-11-9
- 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 bacteria
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 28 Aug 2003 - 24 Feb 2004
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
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 471 (Bacterial Reverse Mutation Assay)
- Version / remarks:
- adopted 21 Jul 1997 (corrected 26 Jun 2020)
- Deviations:
- yes
- Remarks:
- No details of which mutagen(s) (aside from 2-aminoanthracene) were used to demonstrate efficacy of the S9-mix.
- GLP compliance:
- yes
- Type of assay:
- bacterial reverse mutation assay
Test material
- Reference substance name:
- 4-[2-methanesulfonyl-4-(trifluoromethyl)benzoyl]-1,3-dimethyl-1H-pyrazol-5-ol
- EC Number:
- 609-256-3
- Cas Number:
- 365400-11-9
- Molecular formula:
- C14H13F3N2O4S
- IUPAC Name:
- 4-[2-methanesulfonyl-4-(trifluoromethyl)benzoyl]-1,3-dimethyl-1H-pyrazol-5-ol
Constituent 1
Method
- Target gene:
- his operon
Species / strain
- Species / strain / cell type:
- S. typhimurium TA 1535, TA 1537, TA 98, TA 100 and TA 102
- Metabolic activation:
- with and without
- Metabolic activation system:
- Cofactor supplemented post-mitochondrial fraction (S9 mix), prepared from the livers of rats treated with a single intraperitoneal injection of Aroclor 1254 (500 mg/kg bw)
- Test concentrations with justification for top dose:
- 16, 50, 158, 500, 1581, 5000 µg/plate with and without metabolic activation
The test substance showed bacteriotoxic effects starting at 500 µg/plate using the plate incorporation method while no bacteriotoxic effects were observed up to 5000 µg/tube using the preincubation method. Nevertheless all doses could be used for assessment purposes and therefore 5000 µg/plate represents the top dose (according OECD 471). - Vehicle / solvent:
- - Vehicle/solvent used: DMSO (0.1 mL/plate)
- Justification for choice of solvent/vehicle: The solvent used was chosen out of the following solvents, in the order given: water, DMSO, methanol, ethanol, acetone, ethylene glycol dimethylether (EGDE), and DMF. The order of these solvents is based on their bacteriotoxic effects in preincubation experiments. In DMSO AE 0317309 formed colorless to lightbrown solutions.
Controls
- Untreated negative controls:
- no
- Negative solvent / vehicle controls:
- yes
- True negative controls:
- no
- Positive controls:
- yes
- Positive control substance:
- sodium azide
- cumene hydroperoxide
- mitomycin C
- other: -S9: nitrofurantoin (NF; 0.2 µg/plate, TA 100), 4-nitro-1,2-phenylene diamine (4-NPDA; 10 µg/plate, TA 1537; 0.5 µg/plate, TA 98) +S9: 2-aminoanthracene (2-AA; 3 µg/plate, TA 1535, TA 100, TA 1537, TA 98, TA 102)
- Details on test system and experimental conditions:
- METHOD OF APPLICATION: in agar (plate incorporation); preincubation
DURATION
- Preincubation period: 20 min
- Exposure duration: 48 h
NUMBER OF REPLICATIONS: 3 replications each in 2 independent experiments
DETERMINATION OF CYTOTOXICITY
- Method: other: gross appraisal of the background growth, marked and dose-dependent reduction in the mutant count, titer - Evaluation criteria:
- The test material may be considered positive in this test system if the following criteria are met: A reproducible and dose-related increase in mutant counts of at least one strain is observed. For TA 1535, TA 100 and TA 98 this increase should be about twice that of negative controls, whereas for TA 1537, at least a threefold increase should be reached. For TA 102 an increase of about 100 mutants should be reached.
- Statistics:
- Mean values and standard deviation were calculated.
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:
- plate incorporation: 500, 1581 and 5000 µg/plate
- 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:
- plate incorporation: 500, 1581 and 5000 µg/plate
- 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:
- plate incorporation: 500, 1581 and 5000 µg/plate
- 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:
- plate incorporation: 500, 1581 and 5000 µg/plate
- Vehicle controls validity:
- valid
- Untreated negative controls validity:
- not examined
- Positive controls validity:
- valid
- Key result
- Species / strain:
- S. typhimurium TA 102
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- cytotoxicity
- Remarks:
- plate incorporation: 500, 1581 and 5000 µg/plate
- Vehicle controls validity:
- valid
- Untreated negative controls validity:
- not examined
- Positive controls validity:
- valid
- Additional information on results:
- TEST-SPECIFIC CONFOUNDING FACTORS
- Precipitation: No precipitation up to the highest test substance concentration was observed in the medium.
HISTORICAL CONTROL DATA
All results were within the range of historical control data (see attachment 1 "Attached background material" for historical control data).
Any other information on results incl. tables
Table 1. Test results of Experiment 1 (plate incorporation)
With or without S9-Mix |
Test substance concentration [µg/plate] |
Mean number of revertant colonies per plate (average of 3 plates ± standard deviation) |
||||
TA 1535 |
TA 100 |
TA 1537 |
TA 98 |
TA 102 |
||
- |
0 (DMSO) |
17 ± 2 |
99 ± 15 |
7 ± 1 |
23 ± 3 |
134 ± 28 |
- |
16 |
17 ± 2 |
109 ± 8 |
6 ± 2 |
17 ± 3 |
132 ± 20 |
- |
50 |
17 ± 3 |
109 ± 12 |
6 ± 1 |
19 ± 6 |
144 ± 15 |
- |
158 |
12 ± 4 |
122 ± 34 |
5 ± 1 |
22 ± 8 |
163 ± 3 |
- |
500 |
14 ± 5 |
103 ± 11 |
6 ± 2 |
19 ± 5 |
112 ± 13 |
- |
1581 |
14 ± 1 |
115 ± 2 |
9 ± 2 |
24 ± 4 |
122 ± 8 |
- |
5000 |
13 ± 2 |
113 ± 10 |
9 ± 2 |
17 ± 2 |
116 ± 14 |
Positive controls, - S9 |
Name |
Na-azide |
NF |
4-NPDA |
4-NPDA |
MMC |
Concentrations [µg/plate] |
10 |
0.2 |
10 |
0.5 |
0.2 |
|
Mean No. of revertant colonies/ plate (average of 3 ± SD) |
356 ± 22 |
349 ± 46 |
109 ± 25 |
161 ± 12 |
591 ± 11 |
|
+ |
0 (DMSO) |
13 ± 3 |
110 ± 9 |
11 ± 2 |
30 ± 2 |
158 ± 8 |
+ |
16 |
12 ± 6 |
117 ± 3 |
8 ± 1 |
30 ± 1 |
151 ± 20 |
+ |
50 |
8 ± 1 |
114 ± 10 |
8 ± 4 |
24 ± 3 |
161 ± 12 |
+ |
158 |
9 ± 2 |
133 ± 39 |
9 ± 2 |
33 ± 10 |
175 ± 14 |
+ |
500 |
9 ± 1 |
107 ± 2 |
9 ± 2 |
34 ± 3 |
160 ± 9 |
+ |
1581 |
8 ± 2 |
95 ± 13 |
6 ± 1 |
30 ± 3 |
156 ± 14 |
+ |
5000 |
9 ± 2 |
94 ± 9 |
5 ± 1 |
18 ± 6 |
150 ± 23 |
Positive controls, + S9 |
Name |
2-AA |
2-AA |
2-AA |
2-AA |
2-AA |
Concentrations [µg/plate] |
3 |
3 |
3 |
3 |
3 |
|
Mean No. of revertant colonies/ plate (average of 3 ± SD) |
145 ± 15 |
1642 ± 27 |
261 ± 14 |
1389 ± 30 |
542 ± 44 |
Na-azide: sodium azide
NF: nitrofurantoin
4-NPDA: 4-nitro-1,2-phenylene diamine
MMC: mitomycin C
2-AA: 2-aminoanthracene
Table 2. Test results of Experiment 2 (preincubation)
With or without S9-Mix |
Test substance concentration [µg/plate] |
Mean number of revertant colonies per plate (average of 3 plates ± standard deviation) |
||||
TA 1535 |
TA 100 |
TA 1537 |
TA 98 |
TA 102 |
||
- |
0 (DMSO) |
17 ± 1 |
138 ± 8 |
10 ± 1 |
18 ± 3 |
183 ± 9 |
- |
16 |
15 ± 6 |
139 ± 10 |
7 ± 2 |
13 ± 5 |
189 ± 3 |
- |
50 |
20 ± 2 |
135 ± 6 |
7 ± 2 |
15 ± 5 |
201 ± 17 |
- |
158 |
20 ± 5 |
135 ± 16 |
9 ± 2 |
20 ± 5 |
187 ± 29 |
- |
500 |
14 ± 2 |
134 ± 12 |
7 ± 2 |
15 ± 4 |
198 ± 13 |
- |
1581 |
20 ± 5 |
131 ± 1 |
7 ± 3 |
14 ± 2 |
187 ± 14 |
- |
5000 |
16 ± 3 |
141 ± 25 |
6 ± 1 |
17 ± 3 |
200 ± 18 |
Positive controls, - S9 |
Name |
Na-azide |
NF |
4-NPDA |
4-NPDA |
Cumene |
Concentrations [µg/plate] |
10 |
0.2 |
10 |
0.5 |
10 |
|
Mean No. of revertant colonies/ plate (average of 3 ± SD) |
392 ± 17 |
440 ± 49 |
100 ± 19 |
142 ± 12 |
509 ± 23 |
|
+ |
0 (DMSO) |
15 ± 4 |
181 ± 19 |
12 ± 2 |
30 ± 6 |
245 ± 10 |
+ |
16 |
16 ± 4 |
173 ± 10 |
10 ± 2 |
29 ± 8 |
212 ± 20 |
+ |
50 |
16 ± 3 |
157 ± 15 |
10 ± 5 |
23 ± 6 |
237 ± 16 |
+ |
158 |
15 ± 5 |
185 ± 18 |
9 ± 2 |
27 ± 7 |
249 ± 37 |
+ |
500 |
17 ± 2 |
157 ± 12 |
8 ± 1 |
33 ± 4 |
237 ± 3 |
+ |
1581 |
11 ± 2 |
156 ± 14 |
9 ± 2 |
23 ± 5 |
229 ± 3 |
+ |
5000 |
11 ± 2 |
155 ± 4 |
10 ± 3 |
32 ± 5 |
227 ± 11 |
Positive controls, + S9 |
Name |
2-AA |
2-AA |
2-AA |
2-AA |
2-AA |
Concentrations [µg/plate] |
3 |
3 |
3 |
3 |
3 |
|
Mean No. of revertant colonies/ plate (average of 3 ± SD) |
159 ± 8 |
1561 ± 16 |
255 ± 29 |
1331 ± 59 |
507 ± 39 |
Na-azide: sodium azide
NF: nitrofurantoin
4-NPDA: 4-nitro-1,2-phenylene diamine
Cumene: cumene hydroperoxide
2-AA: 2-aminoanthracene
Table 3: Test substance stability in DMSO
Nominal value in mg/mL |
Content as a % of nominal value after storage time in hours |
|
0 |
24 |
|
0.01 |
110 |
110 |
250 |
96 |
97 |
According to these result, the test substance was stable in the vehicle at room temperature at concentrations ranging from 0.01 mg/mL to 250 mg/mL for at least twenty-four hours, a time interval, which covers the time range from preparation of the formulation to last treatment.
Applicant's summary and conclusion
- Conclusions:
- The study was performed according to OECD guideline 471 and compliant with GLP. Under the conditions of the assay, the test item was not mutagenic in S. typhimuirum strains TA 98, TA 100, TA 1535, TA 1537 and in TA 102 with and without metabolic activation.
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