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Diss Factsheets
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EC number: 444-090-3 | CAS number: 204848-45-3
- 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
Toxicity to reproduction
Administrative data
- Endpoint:
- screening for reproductive / developmental toxicity
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2012-2013
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: according GLP and OECD guidelines, well documented
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 013
- Report date:
- 2013
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 421 (Reproduction / Developmental Toxicity Screening Test)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Limit test:
- no
Test material
Constituent 1
Test animals
- Species:
- rat
- Strain:
- Wistar
- Sex:
- male/female
- Details on test animals or test system and environmental conditions:
- - Source: Charles River Wiga GmbH, Sandhofer Weg 7, 97633 Sulzfeld, Germany
- Age at study initiation: 10-11 weeks
- Weight at study initiation: 160-250g
- Housing: singly
- Diet: ad libitum
- Water: ad libitum
- Acclimation period: 5d
- Fasting: 16h before administration
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 22 +/- 3
- Humidity (%): 30-70
- Air changes (per hr): 10
- Photoperiod (hrs dark / hrs light): 12/12
Administration / exposure
- Route of administration:
- oral: gavage
- Vehicle:
- corn oil
- Remarks:
- applied as a asolution
- Details on exposure:
- PREPARATION OF DOSING SOLUTIONS:
DIET PREPARATION
- Rate of preparation of diet (frequency): once a week
- Storage temperature of food: room temperature
VEHICLE
- Justification for use and choice of vehicle (if other than water): miscible - Details on mating procedure:
- - M/F ratio per cage: 1:1
- Length of cohabitation: maximum 2 weeks
- Proof of pregnancy: vaginal smear was sperm positive, or a copulation plug was observed referred to as day 0 of pregnancy
- After successful mating each pregnant female was caged (how): pregnant animals and litter together - Analytical verification of doses or concentrations:
- yes
- Details on analytical verification of doses or concentrations:
- Concentration control Analysis of the test substance preparations were performed in samples of all concentrations at the start of the administration period.
- Duration of treatment / exposure:
- The duration of treatment covered a 2-week premating and a mating period in both sexes, approximately 1 week post-mating in males, and the entire gestation period as well as 4 days of lactation and 2 weeks thereafter in females.
- Frequency of treatment:
- daily
Doses / concentrations
- Remarks:
- Doses / Concentrations:
100, 300, 1000 mg/kg bw
Basis:
actual ingested
- No. of animals per sex per dose:
- 10
- Control animals:
- yes, concurrent vehicle
- Details on study design:
- - Dose selection rationale: based on 28d study
- Positive control:
- without
Examinations
- Parental animals: Observations and examinations:
- CAGE SIDE OBSERVATIONS: Yes
- Time schedule: check for moribund and dead animals was made twice daily on working days and once daily on Saturdays, Sundays and public holidays
DETAILED CLINICAL OBSERVATIONS: Yes
- Time schedule: once daily for any signs of morbidity, pertinent behavioral changes and signs of overt toxicity
BODY WEIGHT: Yes
- Time schedule for examinations: before the start of the administration period, on study day 0 (start of the administration period) and thereafter once a week at the same time of the day
FOOD CONSUMPTION:
- Food consumption for each animal determined and mean daily diet consumption calculated as g food/kg body weight/day: Yes - Litter observations:
- STANDARDISATION OF LITTERS
- Performed on day 4 postpartum: no
PARAMETERS EXAMINED
The following parameters were examined in F1 offspring: number and sex of pups, stillbirths, live births, postnatal mortality up to day 4, presence of gross anomalies
GROSS EXAMINATION OF DEAD PUPS:
yes, all stillborn pups and those pups, which died ahead of schedule, were examined externally, eviscerated and their organs were assessed macroscopically - Postmortem examinations (parental animals):
- SACRIFICE
- Male animals: All surviving animals
- Maternal animals: All surviving animals
GROSS NECROPSY
- organ weights: 1. Anesthetized animals, 2. Epididymides, 3. Testes
- tissue fixation: 1. All gross lesions 2. Cervix 3. Coagulating glands 4. Epididymides (modified Davidson’s solution) 5. Ovaries (modified Davidson’s solution) 6. Oviducts 7. Prostate gland 8. Seminal vesicles 9. Testes (modified Davidson’s solution) 10. Vagina 11. Uterus
HISTOPATHOLOGY / ORGAN WEIGHTS
The tissues indicated below were prepared for microscopic examination and weighed, respectively:
1. Testes
2. Epididymides
3. Ovaries - Postmortem examinations (offspring):
- SACRIFICE
- These animals were subjected to postmortem examinations (macroscopic and/or microscopic examination) as follows: all pups were sacrificed on day 4 post partum
GROSS NECROPSY
All surviving pups (sacrificed on PND 4 under isoflurane anesthesia with CO2), all stillborn pups and those pups, which died ahead of schedule, were examined externally, eviscerated and their organs were assessed macroscopically. Dead pups, except those excessively cannibalized, were examined macroscopically. - Statistics:
- Statistics of pathology: Non-parametric one-way analysis using KRUSKAL-WALLIS test (two-sided). If the resulting pvalue was equal or less than
0.05, a pairwise comparison of each dose group with the control group was performed using WILCOXON-test (two-sided) for the equal medians - Reproductive indices:
- Male reproduction data:
- Male mating index
- Male fertility index
Female reproduction and delivery data:
- Female mating index
- Female fertility index
- Gestation index
- Live birth index
- Post implantation loss - Offspring viability indices:
- Pup number and status at delivery
Pup viability/mortality
Sex ratio
Pup body weight data
Results and discussion
Results: P0 (first parental generation)
General toxicity (P0)
- 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
- Ophthalmological findings:
- not examined
- Haematological findings:
- not examined
- Clinical biochemistry findings:
- not examined
- Endocrine findings:
- not specified
- Urinalysis findings:
- not examined
- Behaviour (functional findings):
- not examined
- Immunological findings:
- not examined
- Organ weight findings including organ / body weight ratios:
- no effects observed
- Histopathological findings: non-neoplastic:
- no effects observed
- Histopathological findings: neoplastic:
- no effects observed
- Other effects:
- no effects observed
Reproductive function / performance (P0)
- Reproductive function: oestrous cycle:
- not specified
- Reproductive function: sperm measures:
- not specified
- Reproductive performance:
- no effects observed
Details on results (P0)
Effect levels (P0)
- Dose descriptor:
- NOAEL
- Effect level:
- 1 000 mg/kg bw/day (actual dose received)
- Sex:
- male/female
- Basis for effect level:
- other: No treatment-related adverse effects observed up to and including the highest dose level of 1000 mg/kg bw
Target system / organ toxicity (P0)
- Critical effects observed:
- no
Results: F1 generation
General toxicity (F1)
- Clinical signs:
- no effects observed
- Mortality / viability:
- no mortality observed
- Body weight and weight changes:
- no effects observed
- Ophthalmological findings:
- not examined
- Haematological findings:
- not examined
- Clinical biochemistry findings:
- not examined
- Urinalysis findings:
- not examined
- 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:
- no effects observed
- Histopathological findings:
- not specified
- Other effects:
- no effects observed
Developmental neurotoxicity (F1)
- Behaviour (functional findings):
- not examined
Developmental immunotoxicity (F1)
- Developmental immunotoxicity:
- not examined
Details on results (F1)
Effect levels (F1)
- Dose descriptor:
- NOAEL
- Generation:
- F1
- Effect level:
- 1 000 mg/kg bw/day (actual dose received)
- Sex:
- male/female
- Basis for effect level:
- other: No treatment-related adverse effects observed up to and including the highest dose level of 1000 mg/kg bw
Target system / organ toxicity (F1)
- Critical effects observed:
- no
Overall reproductive toxicity
- Reproductive effects observed:
- no
Applicant's summary and conclusion
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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