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Diss Factsheets
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EC number: - | 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
![](https://echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_toxicological-information.png)
Acute Toxicity: oral
Administrative data
- Endpoint:
- acute toxicity: oral
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 4 August 2015 - 25 August 2015
- 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 420 (Acute Oral Toxicity - Fixed Dose Method)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.1 bis (Acute Oral Toxicity - Fixed Dose Procedure)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Test type:
- fixed dose procedure
- Limit test:
- no
Test material
- Test material form:
- solid: particulate/powder
Constituent 1
Test animals
- Species:
- rat
- Strain:
- Wistar
- Sex:
- female
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Source: Experimental Medicine Centre at the Medical University in Białystok
- Age at study initiation: 10 week-old (preliminary test); 11 week-old (main test)
- Weight at study initiation: average body weight: 207-217 g
- Fasting period before study: about 19 hours before the administration of the test item, restored 3 hours after the administration
- Housing: plastic cages covered with wire bar lids, 58 x 37 x 21 cm, with UV-sterilized wood shavings as bedding.
- Diet (e.g. ad libitum): ad libitum, "Murigran" standard granulated laboratory food.
- Water (e.g. ad libitum): ad libitum, tap water
- Acclimation period: 5 days
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 20-26ºC
- Humidity (%): 40-87%
- Air changes (per hr): 16 times/hour
- Photoperiod (hrs dark / hrs light): 12 hours light/12 hours dark
Administration / exposure
- Route of administration:
- oral: gavage
- Vehicle:
- water
- Remarks:
- (distilled water)
- Details on oral exposure:
- VEHICLE: Distilled water was introduced to a beaker containing 300 mg (300 mg/Kg bw dose) or 2000 mg (2000 mg/kg bw dose) of the test item to obtain a solution in a volume of 5 mL. Then, the test was carefully mixed with distilled water.
Concentration in vehicle: 60 mg/ml (300 mg/kg bw dose); 400 mg/ml (200 mg/kg bw dose).
MAXIMUM DOSE VOLUME APPLIED: 0.5 mL/100 g bw
RATIONALE FOR SELECTION OF THE STARTING DOSE: The starting dose for the sighting study was selected from the fixed dose levels of 5, 50, 300 and 2000 mg/kg bw. Since no data were available, the sighting study commenced with the administration of the test item at a dose of 300 mg/kg bw to one female rat. Considering the fact that no evident toxicity was produced, the test item at a single dose of 2000 mg/kg bw was administered to the next animal. Since no signs of toxicity were stated, the dose of 2000 mg/kg b.w. was selected to be used in the main study. - Doses:
- Sighting study: 300 and 2000 mg/kg bw
Main study: 2000 mg/kg bw - No. of animals per sex per dose:
- 2 female in the sighting study.
4 females in the main study. - Control animals:
- no
- Details on study design:
- - Duration of observation period following administration: 14 days
- Frequency of observations and weighing: on days 0 (directly before the administration of the test item), 7, and 14 (before euthanasia).
- Necropsy of survivors performed: yes
- Other examinations performed:
General condition: observation of all animals for morbidity and mortality: twice a day or once a day (on days off) during the 14-day experiment.
Detailed clinical observations: on the day of the test item administration (day 0), i.e. 10, 30, and 60 minutes after the administration and then at hourly intervals up to the 5th hour after the administration. From the 1st to the 14th day of the experiment, the detailed clinical observations were performed once a day.
Gross examinations: After the 14-day observation period, all animals were euthanized by intraperitoneal administration of morbital at a dose of 200 mg/kg bw and subjected to gross examinations. The detailed gross examinations comprised the observation of the external body surface, all natural apertures, and the cranial, thoracic, and abdominal cavities with their contents.
Results and discussion
- Preliminary study:
- Clinical signs: No signs of toxicity were stated and the animals survived the experiment after administration of 300 mg/kg bw and 2000 mg/kg bw.
Body weight: During the 14-day experiment, body weight loss was observed in one female (dose of 300 mg/kg bw).
Gross examinations: No pathological changes were observed in both animals.
Effect levels
- Key result
- Sex:
- female
- Dose descriptor:
- discriminating dose
- Effect level:
- 300 mg/kg bw
- Based on:
- test mat.
- Mortality:
- All animals survived the experiment.
- Clinical signs:
- No signs of toxicity were found.
- Body weight:
- During the 14-day experiment, body weight gain was found in all animals.
- Gross pathology:
- No lesions were found in the animal.
Applicant's summary and conclusion
- Interpretation of results:
- GHS criteria not met
- Remarks:
- CLP Implementation.
- Conclusions:
- No effects were observed in rats after the oral exposure of 2000 mg/kg bw (highest dose tested).
- Executive summary:
The acute oral toxicity study based on a fixed dose method was performed according to OECD Guideline 420 (GLP study). In the preliminary test a female rat was orally exposed to a single dose of 300 mg/kg bw and then, since no signs of toxicity were observed, a second rat was exposed to a single dose of 2000 mg/kg bw. Since no effects were observed and all rats survided, four animals used in the main study were given the test item at a dose of 2000 mg/kg bw. After the administration of the test item, the animals were observed for 14 days. General and detailed clinical observations were conducted daily during the entire experiment. Body weights of the animals were determined. After the 14-day observation period, the animals were euthanized and subjected to a necropsy and a detailed gross examination. No signs of toxicity were found and all animals survived the experiment. During the 14-day experiment, body weight gain was found in the animals. Regarding the gross examinations, no lesions were found in the animals. The test item was beyond categorization according to CLP Regulation (EC) No. 1272/2008.
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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