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EC number: 291-813-1 | CAS number: 90480-76-5
- 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:
- 09 January 2018 - 01 March 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 420 (Acute Oral Toxicity - Fixed Dose Method)
- Version / remarks:
- 2001
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.1 bis (Acute Oral Toxicity - Fixed Dose Procedure)
- Version / remarks:
- 2008
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Test type:
- fixed dose procedure
- Limit test:
- no
Test material
- Reference substance name:
- 1-[(5-amino-4-methylpentyl)amino]-3-(2-methylphenoxy)-propan-2-ol
- Cas Number:
- 1617528-43-4
- Molecular formula:
- C16H28N2O2
- IUPAC Name:
- 1-[(5-amino-4-methylpentyl)amino]-3-(2-methylphenoxy)-propan-2-ol
- Reference substance name:
- 1,1'-[(2-Methyl-1,5-pentanediyl)diimino]bis[3-(2-methylphenoxy)-propan-2-ol]
- Cas Number:
- 1617528-45-6
- Molecular formula:
- C26H40N2O4
- IUPAC Name:
- 1,1'-[(2-Methyl-1,5-pentanediyl)diimino]bis[3-(2-methylphenoxy)-propan-2-ol]
- Reference substance name:
- Mephenesin
- EC Number:
- 200-427-4
- EC Name:
- Mephenesin
- Cas Number:
- 59-47-2
- Molecular formula:
- C10H14O3
- IUPAC Name:
- 3-(2-methylphenoxy)propane-1,2-diol
- Reference substance name:
- 1,3-bis(2-methylphenoxy)propan-2-ol
- Cas Number:
- 17181-49-6
- Molecular formula:
- C17H20O3
- IUPAC Name:
- 1,3-bis(2-methylphenoxy)propan-2-ol
- Reference substance name:
- 2-methylpentane-1,5-diamine
- EC Number:
- 239-556-6
- EC Name:
- 2-methylpentane-1,5-diamine
- Cas Number:
- 15520-10-2
- Molecular formula:
- C6H16N2
- IUPAC Name:
- 2-methylpentane-1,5-diamine
- Reference substance name:
- 3,3’-(5-(2-hydroxy-3-(o-tolyloxy)propylamino)-4-methylpentylazanediyl)bis(1-(o-tolyloxy)propan-2-ol)
- Molecular formula:
- C36H52N2O6
- IUPAC Name:
- 3,3’-(5-(2-hydroxy-3-(o-tolyloxy)propylamino)-4-methylpentylazanediyl)bis(1-(o-tolyloxy)propan-2-ol)
- Test material form:
- liquid
Constituent 1
Constituent 2
impurity 1
impurity 2
impurity 3
impurity 4
Test animals
- Species:
- rat
- Strain:
- Wistar
- Sex:
- female
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Source: by Envigo RMS (UK) Limited, Oxon, UK
- Females nulliparous and non-pregnant: yes
- Age at study initiation: 8 to 12 weeks
- Fasting period before study: overnight fast immediately before dosing and for approximately 3 to 4 hours after dosing
- Housing: in groups of up to four in suspended solid floor polypropylene cages furnished with woodflakes
- Diet (e.g. ad libitum): 2014C Teklad Global Rodent diet ad libitum
- Water (e.g. ad libitum): mains drinking water , ad libitum
- Acclimation period: at least 5 days
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 19 to 25 °C
- Humidity (%): 30 to 70%
- Air changes (per hr): at least 15
- Photoperiod (hrs dark / hrs light): 12/12
Administration / exposure
- Route of administration:
- oral: gavage
- Vehicle:
- DMSO
- Details on oral exposure:
- VEHICLE
- Concentration in vehicle: 5 and 30 mg/mL
- Justification for choice of vehicle: Dimethyl sulfoxide was used because the test item did not dissolve/suspend in distilled water or arachis oil BP
MAXIMUM DOSE VOLUME APPLIED: 10 mL/kg bw
DOSAGE PREPARATION:
The test item was formulated within 2 hours of being applied to the test system. It is assumed that the formulation was stable for this duration. - Doses:
- 50, 300 mg/kg bw
- No. of animals per sex per dose:
- 1 female at 300 mg/kg bw, 5 females at 50 mg/kg bw
- Control animals:
- no
- Details on study design:
- - Duration of observation period following administration: 14 days
- Frequency of observations and weighing:
Clinical observations were made 30 minutes, 1, 2, and 4 hours after dosing and then daily for up to 14 days. Morbidity and mortality checks were made twice daily, early and late during normal working days, and once daily at weekends and public holidays.
Individual body weights were recorded on Day 0 (the day of dosing) and on Days 7 and 14 or at death.
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, body weight
Results and discussion
Effect levels
- Sex:
- female
- Dose descriptor:
- LD50
- Effect level:
- >= 50 - <= 300 mg/kg bw
- Based on:
- act. ingr.
- Mortality:
- The animal dose at 300 mg/kg bw was killed for humane reasons, due to the occurrence of clinical signs of toxicity that approached the severity limit set forth in the UK Home Office Project License.
There were no deaths at 50 mg/kg bw. - Clinical signs:
- other: 300 mg/kg bw: Signs of systemic toxicity noted were hunched posture, lethargy, pilo-erection, ataxia, decreased respiratory rate, hypothermia, ptosis and dehydration. 50 mg/kg bw: Hunched posture was noted in one animal 1 hour after dosing. No other si
- Gross pathology:
- 300 mg/kg bw: Abnormalities were noted at necropsy of the animal that was killed during the study were dark liver, thickened non-glandular region of the stomach and gaseous small intestine.
50 mg/kg bw: No abnormalities were noted at necropsy.
Applicant's summary and conclusion
- Interpretation of results:
- Category 3 based on GHS criteria
- Conclusions:
- The acute oral median lethal dose (LD50) of the test item in the female Wistar strain rat was estimated to be in the range of 50 - 300 mg/kg body weight (Globally Harmonized Classification System - Category 3).
- Executive summary:
The study was performed to assess the acute oral toxicity of the test item in the Wistar strain rat according to OECD Guideline 420 and EU method B1 bis (fixed dose procedure).
Following a sighting test at dose levels of 300 mg/kg bw and 50 mg/kg bw, a further group of four fasted females was given a single oral dose of test item, as a solution in dimethyl sulfoxide, at a dose level of 50 mg/kg body weight. Clinical signs and body weight development were monitored during the study. All animals were subjected to gross necropsy.
Mortality. The animal treated at a dose level of 300 mg/kg was killed for humane reasons, due to the occurrence of clinical signs of toxicity that approached the severity limit set forth in the UK Home Office Project License.
Clinical Observations. Signs of systemic toxicity noted in the animal that was humanely killed were hunched posture, lethargy, pilo-erection, ataxia, decreased respiratory rate, hypothermia, ptosis and dehydration. Hunched posture was noted in one animal treated at a dose level of 50 mg/kg. No other signs of toxicity were noted.
Body Weight. Surviving animals showed expected gains in body weight.
Necropsy Abnormalities noted at necropsy of the animal that was killed during the study were dark liver, thickened non-glandular region of the stomach and a gaseous small intestine.
The acute oral median lethal dose (LD50) of the test item in the female Wistar strain rat was estimated to be in the range of 50 - 300 mg/kg body weight (Globally Harmonized Classification System-Category 3).
The test item was also classified as Category 3 according to Regulation (EC) No. 1272/2008, relating to the Classification, Labelling and Packaging of Substances and Mixtures.
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