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EC number: 407-410-2 | 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 bacteria
- Remarks:
- Type of genotoxicity: gene mutation
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- 1990-06-07 to 1991-05-28
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: GLP Guideline study according to OECD 471 (1983); Only four strains of Salmonella typhimurium were used.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 991
- Report date:
- 1991
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 471 (Bacterial Reverse Mutation Assay)
- Deviations:
- yes
- Remarks:
- Only four strains of Salmonella typhimurium were used (TA 135, TA 1537, TA 100 and TA 98).
- GLP compliance:
- yes
- Type of assay:
- bacterial reverse mutation assay
Test material
- Reference substance name:
- 4,7-methanooctahydro-1H-indene-diyldimethyl bis(2-carboxybenzoate)
- EC Number:
- 407-410-2
- EC Name:
- 4,7-methanooctahydro-1H-indene-diyldimethyl bis(2-carboxybenzoate)
- Molecular formula:
- C28H40O8
- IUPAC Name:
- 2-[({5-[(2-carboxycyclohexanecarbonyloxy)methyl]tricyclo[5.2.1.0²,⁶]decan-8-yl}methoxy)carbonyl]cyclohexane-1-carboxylic acid; 2-[({8-[(2-carboxycyclohexanecarbonyloxy)methyl]tricyclo[5.2.1.0²,⁶]decan-4-yl}methoxy)carbonyl]cyclohexane-1-carboxylic acid
- Reference substance name:
- 4,7-methanooctahydro-1H-indene-diyldimethyl bis(2-carboxybenzoate)
- IUPAC Name:
- 4,7-methanooctahydro-1H-indene-diyldimethyl bis(2-carboxybenzoate)
- Test material form:
- other: clear solid particles
- Details on test material:
- - Name of test material (as cited in study report): TCD Emulgator
- Physical state: solid
- Analytical purity: 95.7 %
- Purity test date: 1990-05-07
- Lot/batch No.:90003
- Stability under test conditions: A stability test in the solvent did not detect relevant changes in the percent of active ingredient
- Expiration date of the lot/batch: 1992-01-08
- Storage condition of test material: Refrigerator
Constituent 1
Constituent 2
Method
- Target gene:
- Histidine locus
Species / strain
- Species / strain / cell type:
- S. typhimurium TA 1535, TA 1537, TA 98 and TA 100
- Details on mammalian cell type (if applicable):
- - Type and identity of media:
The test followed the directions of Ames et al. (1973a, 1975) and Maron and Ames (1983).
0.1 mL compound, 0.1 mL bacteria, 0.5 mL S9 mix or buffer, 2.0 mL soft agar, 45 °C in water bath, max. 30 sec, transfer to Petri dish with solid agar. - Additional strain / cell type characteristics:
- not applicable
- Metabolic activation:
- with and without
- Metabolic activation system:
- S9-mix
- Test concentrations with justification for top dose:
- First test: 5000, 1000, 200, 40 and 8 µg/plate
Repeat test: 1200, 600, 300, 150, 75 and 37.5 µg/plate - Vehicle / solvent:
- - Vehicle(s)/solvent(s) used: Ethanol for TCD Emulgator and DMSO or the positive controls
- Justification for choice of solvent/vehicle: according to information given by the internal sponsor
Controls
- Untreated negative controls:
- no
- Negative solvent / vehicle controls:
- yes
- Remarks:
- ethanol
- True negative controls:
- no
- Positive controls:
- yes
- Positive control substance:
- sodium azide
- other: nitrofurantoin, 4-nitro-1,2- phenylene diamine, 2-aminoanthracene
- Remarks:
- without S9 mix: Sodium azide (only for TA 1535), nitrofurantoin (only for TA 100), 4-nitro-1,2-phenylene diamine (only for TA 1537 and TA98); with S9 mix: 2-aminoanthracene (all strains)
- Details on test system and experimental conditions:
- METHOD OF APPLICATION:
in agar (plate incorporation)
(0.1 mL compound, 0.1 mL bacteria, 0.5 mL S9 mix or buffer, 2.0 mL soft agar. 45°C waterbath for max. 30 sec. and transfer to a petri dish with solid agar. Incubation at 37 °C for 48 hours and afterwards colony count using an automatic counter)
The bacterial suspensions were obtained from 17-hour cultures in nutrient broth, which had been incubated at 37 °C and 90 rpm. These suspensions were used for the determination of mutant counts. No standardised procedure was employed to set the bacterial suspensions at a defined density of viable cells per milliliter, since the chosen method of incubation normally produces the desired density. The tests were performed both with and without S9 mix. The count was made after the plates had been incubated for 48 hours at 37 °C. If no immediate count was possible, plates were temporarily stored in a refrigerator.
First/pre-test:
The doses for the first trial were routinely determined on the basis of a standard protocol: 5000 μg per plate were used as the highest dose
Repeat test:
Based on the results from the pre-test doses ranging from 37.5 µg to 1200 µg/plate
DURATION
- Exposure duration: 48 hours
NUMBER OF REPLICATIONS:
- Four plates were used, both with and without S9 mix, for each strain and dose
NUMBER OF CELLS EVALUATED:
- The count was made after the plates had been incubated for 48 hours at 37 °C using an automatic counter. If no immediate count was possible, plates were temporarily stored in a refrigerator
DETERMINATION OF CYTOTOXICITY
- The toxicity of the substance was assessed in three ways. The first was a gross appraisal of background growth on the plates for mutant determination. Secondly, a toxic effect of the substance was assumed when there was a marked and dose-dependent reduction in the mutant count per plate, compared to the negative controls. Thirdly, the titer was determined. Total bacterial counts were taken on two plates for each concentration studied with S9 mix. However, if an evaluation was performed only without S9 mix, the bacterial count was taken without S9mix.
OTHER: Titer/viable cells
The numbers of viable cells were established when determining the titers. The dilution of bacterial suspensions used for the determination of titers was 1:1,000,000. Titers were determined under the same conditions as mutations, except that the histidine concentration in the soft agar was increased from 0.5 mM to 2.5 mM to permit the complete growth of bacteria. - Evaluation criteria:
- The following criteria determined the acceptance of an assay:
a) The negative controls had to be within the expected range, as defined by published data (i.e. Maron and Ames, 1983) and the laboratory's own historical data.
b) The positive controls had to show sufficient effects, as defined by the laboratory's experience.
c) Titer determinations had to demonstrate sufficient bacterial density in the suspension.
An assay not complying with at least one of the above criteria was not used for assessment. Furthermore, the data generated in this assay needed to be confirmed by two additional independent experiments . Even if the criteria for points (a), (b) and ( c) were not met, an assay was accepted if it showed mutagenic activity of the test compound.
Assessment of results:
A reproducible and dose-related increase in mutant counts of at least one strain is considered to be a positive result. For TA 1535, TA 100 and TA 98 this increase should be at least twice the amount of negative controls, whereas for TA 1537, at least a threefold increase should be reached. Otherwise, the result is evaluated as negative. However, these guidelines may be overruled by good scientific judgement.
Results and discussion
Test results
- Species / strain:
- S. typhimurium TA 1535, TA 1537, TA 98 and TA 100
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- cytotoxicity
- Remarks:
- Bacteriotoxic effects at 37.5 μg per plate and above.
- Vehicle controls validity:
- valid
- Positive controls validity:
- valid
- Additional information on results:
- Pre-test/repeat test:
5000, 1000, 200, 40 and 8 µg/plate were tested in the first test. Due to the substance's toxicity in the first test a second test under identical conditions as decribed were conducted with doses ranging from 37.5 μg to 1200 μg per plate.
ADDITIONAL INFORMATION ON CYTOTOXICITY:
No indication of a bacteriotoxic effect of TCD-emulsifier at 8 μg per plate. At higher doses, the substance had a strong, strain-specific bacteriotoxic effect. - Remarks on result:
- other: all strains/cell types tested
- Remarks:
- Migrated from field 'Test system'.
Any other information on results incl. tables
Summary of mean values without S9 mix | ||||
Table and group µg/plate |
Strain | |||
TA1535 | TA 100 | TA 1537 | TA 98 | |
1-4 | ||||
0 | 21 | 75 | 5 | 26 |
8 | 26 | 68 | 7 | 32 |
40 | 26 | 79 | 7 | 32 |
200 | 24 | 85 | 9 | 28 |
1000 | 17 | 66 | 3 | 25 |
5000 | 14 | -- | - | -- |
Na-azid | 723 | |||
NF | 343 | |||
4-NPDA | 38 | 70 | ||
5-8 | ||||
0 | 8 | 79 | 10 | 22 |
37.5 | 9 | 85 | 8 | 22 |
75 | 9 | 87 | 7 | 19 |
150 | 11 | 86 | 5 | 23 |
300 | 10 | 93 | 8 | 18 |
600 | 12 | 84 | 9 | 18 |
1200 | 16 | 71 | 5 | 22 |
Na-azid | 1056 | |||
NF | 422 | |||
4-NPDA | 36 | 60 |
Summary of mean values with S9 mix | ||||
Table and group µg/plate |
Strain | |||
TA1535 | TA 100 | TA 1537 | TA 98 | |
1-4 | ||||
30% S9 | ||||
0 | 25 | 90 | 5 | 41 |
8 | 23 | 93 | 5 | 31 |
40 | 18 | 104 | 6 | 31 |
200 | 20 | 96 | 3 | 38 |
1000 | 19 | 81 | 3 | 4 |
5000 | 13 | --- | - | -- |
2-AA | 249 | 558 | 67 | 241 |
5-8 | ||||
30% S9 | ||||
0 | 15 | 113 | 9 | 48 |
37.5 | 16 | 134 | 10 | 55 |
75 | 16 | 115 | 7 | 49 |
150 | 20 | 124 | 6 | 49 |
300 | 20 | 116 | 12 | 44 |
600 | 19 | 122 | 7 | 34 |
1200 | 20 | 137 | 9 | 37 |
2-AA | 125 | 698 | 74 | 366 |
Applicant's summary and conclusion
- Conclusions:
- Interpretation of results (migrated information):
negative
In conclusion, no biologically relevant increase in the mutant count, in comparison with the negative controls, was observed. TCD-emulsifier is considered to be non-mutagenic without and with S9 mix in the Salmonella/microsome test. - Executive summary:
In a reverse gene mutation assay in bacteria, strains TA 1535, TA 100, TA 1537, TA 98 of S. typhimurium were exposed to TCD-emulsifier (95.7 %) in ethanol at concentrations of 8, 40, 200, 1000 and 5000 µg/plate (first/pre-test) and at concentrations of 37.5, 75, 150, 300, 600, 1200 µg/plate (repeat test) in the presence and absence of mammalian metabolic activation.
TCD-emulsifier was tested up to limit concentration (5000 µg/plate). Bacteriotoxic effects were reported from 37.5 µg per plate and above. The positive controls induced the appropriate responses in the corresponding strains. There was no evidence of induced mutant colonies over background at any concentration tested.
This study is classified as acceptable. The study satisfies the requirements of OECD test guideline 471 for in vitro mutagenicity (bacterial reverse gene mutation) data.
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