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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
Acute Toxicity: oral
Administrative data
- Endpoint:
- acute toxicity: oral
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From 20 Dec 2016 to 11 Jan 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 425 (Acute Oral Toxicity: Up-and-Down Procedure)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Test type:
- up-and-down procedure
- Limit test:
- yes
Test material
- Reference substance name:
- trans-(4-(methylamino)cyclohexyl)methanesulfonic acid
- Cas Number:
- 2124221-12-9
- Molecular formula:
- C8H17NO3S
- IUPAC Name:
- trans-(4-(methylamino)cyclohexyl)methanesulfonic acid
1
Test animals
- Species:
- rat
- Strain:
- Sprague-Dawley
- Sex:
- female
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Rationale for alternative/additional species to rat (if applicable)
- Source: Covance Research Products, Inc., Denver, PA
- Females (if applicable) nulliparous and non-pregnant: yes
- Rationale for use of males (if applicable)
- Age at study initiation: The animals were born on 04 Oct 2016.
- Weight at study initiation: The pretest body weight range was 234 - 259 grams.
- Fasting period before study:
- Housing: The animals were identified by cage notation and indelible body marks, and individually housed in suspended wire-bottom cages.
- Historical data:
- Diet (e.g. ad libitum): Fresh PMI Rat Chow (Diet No. 5012) was freely available except for 16 to
20 hours prior to dosing.
- Water (e.g. ad libitum): Water was available ad libitum.
- Acclimation period: at least five days
- Microbiological status when known
- Method of randomisation in assigning animals to test and control groups
ENVIRONMENTAL CONDITIONS
- Temperature (°C):
- Humidity (%):
- Air changes (per hr):
- Photoperiod (hrs dark / hrs light): 12-hour light/dark cycle
Administration / exposure
- Route of administration:
- oral: gavage
- Vehicle:
- water
- Details on oral exposure:
- MAXIMUM DOSE VOLUME APPLIED: 2 mL
DOSAGE PREPARATION (if unusual): 1.25 g were mixed with distilled water to a total volume of 5 ml.
CLASS METHOD (if applicable)
- Rationale for the selection of the starting dose: Initially, a single female Sprague Dawley rat was dosed orally by syringe and dosing needle at a dose level of 2000 mg/kg. Since the animal survived, four additional females were dosed at 2000 mg/kg. - Doses:
- 2000 mg/kg
- No. of animals per sex per dose:
- 5 females
- Control animals:
- no
- Details on study design:
- - Duration of observation period following administration: 14 days
- Frequency of observations and weighing: Animals were observed at 15 minutes, 1, 2 and 4 hours post-dosing and once daily thereafter for 14 days for toxicity and pharmacological effects. Observations included, but were not limited to, evaluation of skin and fur, eyes and mucous membranes, respiratory and circulatory effects, autonomic effects such as salivation, central nervous system effects including tremors and convulsions, changes in the level of activity, gait and posture, reactivity to handling or sensory stimuli, altered strength, and stereotypies or bizarre behavior (e.g., self-mutilation, walking backwards). All animals were observed twice daily for mortality on Day 1 to Day 14.
- Necropsy of survivors performed: yes, All animals were humanely euthanized using CO2 following study termination and examined for gross pathology.
- Clinical signs including body weight: Body weights were recorded pre-test, weekly, and at termination.
Results and discussion
Effect levels
- Key result
- Sex:
- female
- Dose descriptor:
- LD50
- Effect level:
- > 2 000 mg/kg bw
- Based on:
- test mat.
- Mortality:
- All five female rats survived following a single 2000 mg/kg oral dose.
- Clinical signs:
- other: No abnormal physical signs were observed among three out of five animals. Diarrhea was observed in two out of five animals on Day 1.
- Gross pathology:
- The gross necropsy revealed no observable abnormalities.
Applicant's summary and conclusion
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- The oral LD50 of test item is greater than 2000 mg/kg of body weight in female rats.
- Executive summary:
The study is performed according to OECD Guideline 425. Initially, a single female Sprague Dawley rat was dosed orally with test item at dose level of 2000 mg/kg. Since the animal survived, four additional females were dosed at 2000 mg/kg. The oral LD50 of test item is greater than 2000 mg/kg of body weight in female rats.
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