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EC number: 203-214-4 | CAS number: 104-57-4
- 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
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- Nanomaterial aspect ratio / shape
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- Nanomaterial Zeta potential
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- Endpoint summary
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- 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
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- 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:
- from 2015-11-18 to 2015-11-27
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 015
- Report date:
- 2015
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 471 (Bacterial Reverse Mutation Assay)
- Version / remarks:
- 1997
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.13/14 (Mutagenicity - Reverse Mutation Test Using Bacteria)
- Version / remarks:
- 2008
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- ENVIGO CRS GmbH, In den Leppsteinswiesen 19, 64380 Roßdorf
- Type of assay:
- bacterial reverse mutation assay
Test material
- Reference substance name:
- Benzyl formate
- EC Number:
- 203-214-4
- EC Name:
- Benzyl formate
- Cas Number:
- 104-57-4
- Molecular formula:
- C8H8O2
- IUPAC Name:
- benzyl formate
Constituent 1
Method
Species / strain
- Species / strain / cell type:
- S. typhimurium TA 1535, TA 1537, TA 98, TA 100 and E. coli WP2
- Metabolic activation:
- with and without
- Metabolic activation system:
- Phenobarbital/β-naphthoflavone induced rat liver S9 mix
- Test concentrations with justification for top dose:
- Pre-Experiment/Experiment I: 3, 10, 33, 100, 333, 1000, 2500 and 5000 µg/plate
Experiment II: 33, 100, 333, 1000, 2500 and 5000 µg/plate - Vehicle / solvent:
- - Vehicle(s)/solvent(s) used: DMSO
Controls
- Untreated negative controls:
- yes
- Negative solvent / vehicle controls:
- yes
- True negative controls:
- no
- Positive controls:
- yes
- Positive control substance:
- other: -S9: Sodium azide (NaN3; TA 1535, TA 100), 4-nitro-o-phenylene-diamine (4-NOPD; TA 1537, TA 98), methyl methane sulfonate (MMS; WP2 uvrA); +S9: 2-aminoanthracene (2-AA; TA 1535, TA 1537, TA 98, TA 100, WP2 uvrA)
- Details on test system and experimental conditions:
- METHOD OF APPLICATION:
- Experiment I: in agar (plate incorporation)
- Experiment II: preincubation
DURATION
- Preincubation period: 60 minutes
- Exposure duration: 48 hours
NUMBER OF REPLICATIONS: 3
DETERMINATION OF CYTOTOXICITY
- Method: relative total growth - Evaluation criteria:
- A test item is considered as a mutagen if a biologically relevant increase in the number of revertants exceeding the threshold of twice (strains TA 98, TA 100, and WP2 uvrA) or thrice (strains TA 1535 and TA 1537) the colony count of the corresponding solvent control is observed.
A dose dependent increase is considered biologically relevant if the threshold is exceeded at more than one concentration.
An increase exceeding the threshold at only one concentration is judged as biologically relevant if reproduced in an independent second experiment.
A dose dependent increase in the number of revertant colonies below the threshold is regarded as an indication of a mutagenic potential if reproduced in an independent second experiment. However, whenever the colony counts remain within the historical range of negative and solvent controls such an increase is not considered biologically relevant.
Results and discussion
Test results
- Key result
- Species / strain:
- S. typhimurium TA 1535, TA 1537, TA 98, TA 100 and E. coli WP2
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- cytotoxicity
- Remarks:
- In experiment II toxic effects occured in strains TA 1537, TA 98 and TA 100.
- Vehicle controls validity:
- valid
- Untreated negative controls validity:
- valid
- Positive controls validity:
- valid
- Additional information on results:
- TEST-SPECIFIC CONFOUNDING FACTORS
- Precipitation: No precipitation of the test item occurred up to the highest investigated dose in the overlay agar in the test tubes. Precipitation of the test item in the overlay agar on the incubated agar plates was observed at 5000 μg/plate in experiment II with and without S9 mix. The undissolved particles had no influence on the data recording.
COMPARISON WITH HISTORICAL CONTROL DATA: Done
ADDITIONAL INFORMATION ON CYTOTOXICITY:
No toxic effects, evident as a reduction in the number of revertants (below the indication factor of 0.5), occurred in all strains with and without metabolic activation in experiment I. In experiment II toxic effects, evident as a reduction in the number of revertants (below the indication factor of 0.5), occurred in strains TA 1537, TA 98, and TA 100.
Any other information on results incl. tables
Table 1: Toxic effects, evidence as a reduction in the number of revertants (below the induction factor of 0.5), were observed at the following concentrations (µg/plate)
Strain |
Experiment I |
Experiment II |
||
|
Without S9 mix |
With S9 mix |
Without S9 mix |
With S9 mix |
TA 1535 |
/ |
/ |
/ |
/ |
TA 1537 |
/ |
/ |
5000 |
5000 |
TA 98 |
/ |
/ |
5000 |
/ |
TA 100 |
/ |
/ |
2500-5000 |
/ |
WP2 uvrA |
/ |
/ |
/ |
/ |
/ = no toxic effects, evident as a reduction in the number of revertants (below the induction factor 0.5)
Table 2: Summary of Experiment I (plate incorporation)
Test group |
Dose level (µg/plate) |
Revertant Colony Counts (Mean +/- SD) |
|||||||||
TA 1535 |
TA 1537 |
TA 98 |
TA 100 |
WP2 uvrA |
|||||||
-S9 |
+S9 |
-S9 |
+S9 |
-S9 |
+S9 |
-S9 |
+S9 |
-S9 |
+S9 |
||
DMSO |
|
11+/- 2 |
16 +/- 3 |
12 +/- 3 |
12 +/- 4 |
23 +/- 6 |
32 +/- 6 |
141 +/- 14 |
146 +/- 4 * |
39 +/- 2 |
46 +/- 3 |
Untreated |
|
8 +/- 3 |
12 +/- 4 |
10 +/- 4 |
17 +/- 3 |
23 +/- 2 |
34 +/- 9 |
154 +/- 9 |
182 +/- 11 * |
42 +/- 9 |
49 +/- 8 |
Test item |
3 |
9 +/- 3 |
16 +/- 4 |
10 +/- 3 |
12 +/- 3 |
25 +/- 5 |
38 +/- 7 |
133 +/- 29 |
134 +/- 16* |
36 +/- 6 |
49 +/- 4 |
10 |
12 +/-3 |
11 +/- 4 |
12 +/- 5 |
16 +/- 6 |
21 +/- 1 |
52 +/- 5 |
122 +/- 8 |
123 +/- 13* |
38 +/- 4 |
53 +/- 10 |
|
33 |
14 +/- 2 |
15 +/- 2 |
9 +/-3 |
11 +/- 3 |
28 +/- 1 |
36 +/- 4 |
124 +/- 9 |
148 +/- 26* |
44 +/- 1 |
45 +/- 8 |
|
100 |
12 +/- 2 |
13 +/- 1 |
10 +/- 1 |
12 +/- 7 |
24 +/- 6 |
39 +/- 3 |
138 +/- 22 |
142 +/- 7* |
42 +/- 5 |
50 +/- 5 |
|
333 |
11 +/- 5 |
11 +/- 2 |
8 +/- 2 |
12 +/- 2 |
21 +/- 1 |
45 +/- 8 |
132 +/- 14 |
143 +/- 15* |
40 +/- 8 |
53 +/- 8 |
|
1000 |
11 +/- 3 |
11 +/- 3 |
11 +/- 3 |
13 +/- 4 |
22 +/- 2 |
32 +/- 5 |
135 +/- 25 |
140 +/- 20* |
43 +/- 10 |
55 +/- 15 |
|
2500 |
9 +/- 1 |
10 +/- 2 |
8 +/- 2 |
13 +/- 4 |
19 +/- 5 |
35 +/- 9 |
84 +/- 17 |
121 +/- 17* |
40 +/- 10 |
48 +/- 4 |
|
5000 |
8 +/- 1 |
12 +/- 6 |
6 +/- 3 |
16 +/- 3 |
24 +/- 3 |
32 +/- 10 |
70 +/- 7 |
78 +/- 6* |
38 +/- 7 |
47 +/- 10 |
|
NaN3 |
10 |
1185+/- 65 |
|
|
|
|
|
2241 +/- 56 |
|
|
|
4-NOPD |
10 |
|
|
|
|
318 +/- 27 |
|
|
|
|
|
4-NOPD |
50 |
|
|
104 +/- 13 |
|
|
|
|
|
|
|
MMS |
2.0 |
|
|
|
|
|
|
|
|
742 +/- 48 |
|
2-AA |
2.5 |
|
359 +/- 23 |
|
185 +/- 13 |
|
4104 +/- 292 |
|
4899 +/- 171* |
|
|
2-AA |
10.0 |
|
|
|
|
|
|
|
|
|
331 +/- 12 |
Table 3: Summary of Experiment II (preincubation)
Test group |
Dose level (µg/plate) |
Revertant Colony Counts (Mean +/- SD) |
|||||||||
TA 1535 |
TA 1537 |
TA 98 |
TA 100 |
WP2 uvrA |
|||||||
-S9 |
+S9 |
-S9 |
+S9 |
-S9 |
+S9 |
-S9 |
+S9 |
-S9 |
+S9 |
||
DMSO |
|
14 +/- 1 |
16 +/- 5 |
8 +/- 2 |
11 +/- 3 |
26 +/- 4 |
27 +/- 5 |
130 +/- 9 |
111 +/- 8 |
36 +/- 8 |
49 +/- 2 |
Untreated |
|
22 +/- 2 |
15 +/- 4 |
10 +/- 3 |
10 +/- 2 |
30 +/- 9 |
28 +/- 3 |
180 +/- 17 |
180 +/- 34 |
55 +/- 4 |
57 +/- 4 |
Test item |
33 |
11 +/- 4 |
15 +/- 7 |
9 +/- 5 |
9 +/- 4 |
21 +/- 5 |
31 +/- 4 |
122 +/- 8 |
119 +/- 10 |
36 +/- 6 |
53 +/- 3 |
|
100 |
10 +/- 3 |
14 +/- 2 |
9 +/- 0 |
7 +/- 3 |
23 +/- 8 |
28 +/- 5 |
130 +/- 14 |
123 +/- 12 |
42 +/- 1 |
56 +/- 8 |
|
333 |
14 +/- 2 |
15 +/- 6 |
9 +/- 3 |
9 +/- 1 |
28 +/- 9 |
31 +/- 3 |
141 +/- 4 |
128 +/- 17 |
30 +/- 3 |
58 +/- 11 |
|
1000 |
15 +/- 2 |
14 +/- 5 |
8 +/- 2 |
10 +/- 3 |
29 +/- 4 |
34 +/- 2 |
100 +/- 12 |
125 +/- 8 |
25 +/- 2 |
52 +/- 4 |
|
2500 |
10 +/- 2 |
13 +/- 6 |
8 +/- 3 |
8 +/- 1 |
23 +/- 7 |
27 +/- 3 |
34 +/- 7 |
98 +/- 18 |
38 +/- 3 |
53 +/- 3 |
|
5000 |
14 +/- 1 (P) |
8 +/- 2 (P,M) |
0 +/- 1 (P) |
3 +/- 1 (P,M) |
11 +/- 3 (P) |
22 +/- 3 (P) |
37 +/- 6 (P, M) |
69 +/- 22 (P) |
27 +/- 1 (P) |
52 +/- 8 (P) |
NaN3 |
10 |
1195 +/- 37 |
|
|
|
|
|
1787 +/- 163 |
|
|
|
4-NOPD |
10 |
|
|
|
|
319 +/- 5 |
|
|
|
|
|
4-NOPD |
50 |
|
|
81 +/- 12 |
|
|
|
|
|
|
|
MMS |
2.0 |
|
|
|
|
|
|
|
|
509 +/- 50 |
|
2-AA |
2.5 |
|
352 +/- 31 |
|
153 +/- 12 |
|
4087 +/- 458 |
|
4012 +/- 671 |
|
|
2-AA |
10.0 |
|
|
|
|
|
|
|
|
|
310 +/- 25 |
NaN3: sodium azide
2-AA: 2-aminoanthracene
4-NOPD: 4-nitro-o-phenylene-diamine
MMS: methyl methane sulfonate
Applicant's summary and conclusion
- Conclusions:
- Under the experimental conditions reported, the test item is considered negative in the Ames test.
- Executive summary:
The genetic toxicity of the test item was tested according to the plate incorporation test (experiment I) and the pre-incubation test (experiment II) using Salmonella typhimurium strains TA 1535, TA 1537, TA 98, TA 100 and the Escherichia coli strain WP2 uvrA (Ames test). The assay was performed with and without liver microsomal activation. Each concentration, including the controls, was tested in triplicate. The test item was tested at the following concentrations:
Pre-Experiment/Experiment I: 3, 10, 33, 100, 333, 1000, 2500 and 5000 µg/plate
Experiment II: 33, 100, 333, 1000, 2500 and 5000 µg/plate
No substantial increase in revertant colony numbers of any of the five tester strains were observed following treatment with the test item at any dose level, neither in the presence nor absence of metabolic activation (S9 mix). Therefore, the test substance is considered to be non-mutagenic in this reverse mutation assay.
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