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Diss Factsheets

Administrative data

Description of key information

Acute toxcity: Oral

LD50 > 10000 mg/kg

Key value for chemical safety assessment

Acute toxicity: via oral route

Link to relevant study records
Reference
Endpoint:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
key study
Study period:
20 January 1982 - 25 January 1982
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
Deviations:
not specified
Qualifier:
according to guideline
Guideline:
other: Acute Oral Toxicity Testing in Rodents, January 1981
Deviations:
not specified
GLP compliance:
not specified
Limit test:
no
Species:
rat
Strain:
Wistar
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Age at study initiation: approximately 9 weeks
- Weight at study initiation: males: 170 - 247 g / females: 159 - 244 g
- Fasting period before study: overnight
- Housing: Macrolon cages type 3 with wire mesh tops and standardized granulated soft wood bedding
- Diet (e.g. ad libitum): stadard pelleted food, ad libitum
- Water (e.g. ad libitum): tap water, ad libitum
- Acclimation period: 1 week under test conditons

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 22 ± 2 °C
- Humidity (%): 55 ± 10 %
- Photoperiod (hrs dark / hrs light): 12 hours/day
Route of administration:
oral: gavage
Vehicle:
polyethylene glycol
Doses:
Volume/kg bodyweight:
10 mL at 1000 mg/kg
20 mL at 5000 mg/kg
20 mL at 10000 mg/kg
No. of animals per sex per dose:
5
Details on study design:
- Duration of observation period following administration: 14 days
- Frequency of observations and weighing: on the day of administration, 7 and 14 days after the administration
- Necropsy of survivors performed: yes
- Other examinations performed: General behaviour, nose, respiration, motility, eye, body position, motor susceptibility, skin, clinical signs, gross pathology.
Statistics:
No statistical model was used to determine LD50.
Preliminary study:
not specified
Key result
Sex:
male/female
Dose descriptor:
LD50
Effect level:
10 000 mg/kg bw
Based on:
test mat.
Mortality:
None
Clinical signs:
other: The main symptoms observed were: sedation, dyspnoea, curved body position, diarrhoea and ruffled fur. These symptoms were more pronounced in the higher groups.
Gross pathology:
No pathological changes at any dose.
Interpretation of results:
GHS criteria not met
Conclusions:
The acute oral LD50 of the test item in rats of both sexes observed over a period of 14 days was estimated to be greater than 10000mg/kg.
Endpoint conclusion
Endpoint conclusion:
adverse effect observed
Dose descriptor:
LD50
Value:
10 000 mg/kg bw
Quality of whole database:
One reliability 2 study available.

Additional information

Justification for classification or non-classification