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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
Endpoint summary
Administrative data
Key value for chemical safety assessment
- Toxic effect type:
- dose-dependent
Effects on fertility
Description of key information
In an oral gavage study conducted, the NOAEL for N-(3-(trimethoxysilyl)propyl)ethylenediamine relating to repeated dose (parental systemic) effects and to reproductive toxicity was at least 500 mg/kg bw/day, as no significant adverse effects were observed up to the highest dose of 500 mg/kg bw/day tested in rats.
Link to relevant study records
- Endpoint:
- screening for reproductive / developmental toxicity
- Type of information:
- experimental study
- Remarks:
- Read across data
- Adequacy of study:
- weight of evidence
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- secondary literature
- Justification for type of information:
- Data is from secondary source
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 422 (Combined Repeated Dose Toxicity Study with the Reproduction / Developmental Toxicity Screening Test)
- GLP compliance:
- not specified
- Limit test:
- no
- Specific details on test material used for the study:
- Not specified
- Species:
- rat
- Strain:
- Sprague-Dawley
- Details on species / strain selection:
- Not specified
- Sex:
- male/female
- Details on test animals or test system and environmental conditions:
- No data available
- Route of administration:
- oral: gavage
- Vehicle:
- corn oil
- Details on exposure:
- Not specified
- Details on mating procedure:
- not specified
- Duration of treatment / exposure:
- 39 days
- Frequency of treatment:
- Daily, 7 days per week for up to 39 days
- Details on study schedule:
- Not specified
- Dose / conc.:
- 0 mg/kg bw/day (actual dose received)
- Dose / conc.:
- 25 mg/kg bw/day (actual dose received)
- Dose / conc.:
- 125 mg/kg bw/day (actual dose received)
- Dose / conc.:
- 500 mg/kg bw/day (actual dose received)
- No. of animals per sex per dose:
- Not specified
- Control animals:
- yes, concurrent vehicle
- Details on study design:
- Not specified
- Positive control:
- Not specified
- Parental animals: Observations and examinations:
- The animals were observed twice daily (once daily on weekends) for mortality/viability
- Oestrous cyclicity (parental animals):
- Not specified
- Sperm parameters (parental animals):
- Not specified
- Litter observations:
- Not specified
- Postmortem examinations (parental animals):
- Not specified
- Postmortem examinations (offspring):
- Not specified
- Statistics:
- Data were analyzed by Bartlett's and Kolmogorov-Smirnov tests. Parametric data was tested by using ANOVA followed by Dunnett's test; Non-parametric data was analyzed by Kruskal-Wallis test followed by Wilcoxon test. Significance levels were either P<0.05 or P<0.01.
- Clinical signs:
- no effects observed
- Mortality:
- no mortality observed
- Body weight and weight changes:
- no effects observed
- Food consumption and compound intake (if feeding study):
- no effects observed
- Food efficiency:
- not specified
- Water consumption and compound intake (if drinking water study):
- not specified
- Ophthalmological findings:
- not specified
- Haematological findings:
- not specified
- Clinical biochemistry findings:
- not specified
- Endocrine findings:
- not specified
- Urinalysis findings:
- not specified
- Behaviour (functional findings):
- not specified
- Organ weight findings including organ / body weight ratios:
- no effects observed
- Histopathological findings: non-neoplastic:
- no effects observed
- Reproductive function: oestrous cycle:
- not specified
- Reproductive function: sperm measures:
- not specified
- Reproductive performance:
- not specified
- Dose descriptor:
- NOAEL
- Effect level:
- >= 500 mg/kg bw/day (actual dose received)
- Based on:
- test mat.
- Sex:
- male/female
- Basis for effect level:
- clinical signs
- mortality
- body weight and weight gain
- food consumption and compound intake
- Critical effects observed:
- no
- Clinical signs:
- effects observed, treatment-related
- Description (incidence and severity):
- Increased nasal sounds, labored respiration or soft vocalization
- Mortality / viability:
- mortality observed, treatment-related
- Body weight and weight changes:
- no effects observed
- Food consumption and compound intake (if feeding study):
- no effects observed
- Food efficiency:
- no effects observed
- Water consumption and compound intake (if drinking water study):
- not specified
- Ophthalmological findings:
- not specified
- Haematological findings:
- not specified
- Clinical biochemistry findings:
- not specified
- Urinalysis findings:
- not specified
- Sexual maturation:
- not specified
- Anogenital distance (AGD):
- not specified
- Nipple retention in male pups:
- not specified
- Organ weight findings including organ / body weight ratios:
- not specified
- Gross pathological findings:
- not specified
- Histopathological findings:
- not specified
- Other effects:
- not specified
- Behaviour (functional findings):
- not specified
- Developmental immunotoxicity:
- not specified
- Dose descriptor:
- NOAEL
- Generation:
- F1
- Effect level:
- >= 500 mg/kg bw/day (nominal)
- Based on:
- test mat.
- Sex:
- not specified
- Basis for effect level:
- clinical signs
- mortality
- body weight and weight gain
- clinical biochemistry
- urinalysis
- organ weights and organ / body weight ratios
- Critical effects observed:
- no
- Reproductive effects observed:
- no
- Conclusions:
- In an oral gavage study conducted, the NOAEL for N-(3-(trimethoxysilyl)propyl)ethylenediamine relating to repeated dose (parental systemic) effects and to reproductive toxicity was at least 500 mg/kg bw/day, as no significant adverse effects were observed up to the highest dose of 500 mg/kg bw/day tested in rats.
- Executive summary:
A combined repeated dose toxicity study with the reproduction/developmental toxicity screening test study was performed with test chemical (CAS: 1760-24-3) in sprague dawley rats. Test chemical wass dissolved in corn oil at the doses of 25, 125, 500 mg/kg bw/day. Two females in the 500 mg/kg/day group were sacrificed or found dead in moribund condition. Both of these deaths were attributed to dosing-related errors. Clinical signs attributed to test substance included increased nasal sounds, labored respiration or soft vocalization. These signs were not seen in the control and infrequently seen in either of the two lower dose groups. There was no test substancerelated effects on body weight, body weight gain or food consumption. Observations recorded at dosing indicate a dose-related resistance to dosing. No test substance-related effects were observed in any of the reproductive parameters evaluated. Two high dose (500 mg/kg/day) and one low dose (25 mg/kg/day) females that did not produce litters had positive evidence of copulation. Six of the eight eight surviving high dose group females produced litters that were similar in all respects to control litters. Based on the results of this reproductive/developmental screening study, the NOAEL for maternal systemic toxicity of AEAPTMS in the rat via the oral dosing was considered to be 500 mg/kg/day.
Reference
Effect on fertility: via oral route
- Endpoint conclusion:
- no adverse effect observed
- Dose descriptor:
- NOAEL
- 500 mg/kg bw/day
- Species:
- rat
- Quality of whole database:
- Data is from secondary source and klimisch 4.
Effect on fertility: via inhalation route
- Endpoint conclusion:
- no study available
Effect on fertility: via dermal route
- Endpoint conclusion:
- no study available
Additional information
Toxicity to reproduction:
Study 1: A combined repeated dose toxicity study with the reproduction/developmental toxicity screening test study was performed with test chemical (CAS: 1760-24-3) in sprague dawley rats. Test chemical wass dissolved in corn oil at the doses of 25, 125, 500 mg/kg bw/day. Two females in the 500 mg/kg/day group were sacrificed or found dead in moribund condition. Both of these deaths were attributed to dosing-related errors. Clinical signs attributed to test substance included increased nasal sounds, labored respiration or soft vocalization. These signs were not seen in the control and infrequently seen in either of the two lower dose groups. There was no test substancerelated effects on body weight, body weight gain or food consumption. Observations recorded at dosing indicate a dose-related resistance to dosing. No test substance-related effects were observed in any of the reproductive parameters evaluated. Two high dose (500 mg/kg/day) and one low dose (25 mg/kg/day) females that did not produce litters had positive evidence of copulation. Six of the eight eight surviving high dose group females produced litters that were similar in all respects to control litters. Based on the results of this reproductive/developmental screening study, the NOAEL for maternal systemic toxicity of AEAPTMS in the rat via the oral dosing was considered to be 500 mg/kg/day.
Study 2: In a repertaed dsoe toxicity study,SPF male andfemale rats were treated with menthone in the concentration of 0, 200, 400 and 800 mg/kg bw/ day orally by gavage for 28 days. At 800 mg/kg bw,after 19 days of dosing female rats showed signs of toxic effects. They had pale mucous membranes and showed signs of pain prevent deaths in this group, the dose was reduced to 400 mg/kg.4 animals died during the study due to accidental intratracheal dosing.Decreased in body weight gain was observed in treated male and female rats at 200, 400 and 800 mg/kg bw as compared to control. Decreased in food consumption was observed in treated male rat at 800 mg/kg bw, and in female rats from 3rd week at400 mg/kg bwas compared to control. Decreased in food consumption was observed in female rat within the first 2 weeks at 200 and 400mg/kg bwas compared to control. Dose-dependent decrease in creatinine concentration and a dose dependent increase of both alkaline phosphatase activity and bilirubin content were observed in treated male and female rats at 800 mg/kg bw as compared to control. Similarly,statistically significant dose-related increase in relative weight of the spleen, liver and brain of the male rat at 800 mg/kg bw and kidneys, spleen, liver and brain of female rats at 400 mg/kg bw were observed as compare to control. In addition, Cyst-like spaces appeared scattered in the white matter of the cerebellum at 800 mg/kg bw. The findings resembled the changes found in rats dosed with peppermint oil. No histopathological changes were observed in reproductive organ of testis and ovary of treated rats as compared to control. Therefore, NOAEL was considered to be 800 mg/kg bw for male and 671 mg/kg bw for female when SPF male and female rats were treated with menthone orally by gavage for 28 days.
Justification for classification or non-classification
Thus based on the above annotation and CLP criteria the test chemical is not likely to exhibit reproductive toxicant substance. Hence the substance cannot be classified as reproductive toxicant.
Additional information
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.
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