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Diss Factsheets

Toxicological information

Acute Toxicity: oral

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Administrative data

Endpoint:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Study completion date: 01 April, 1985
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1985
Report date:
1985

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
Deviations:
no
GLP compliance:
no
Test type:
standard acute method
Limit test:
yes

Test material

Constituent 1
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder
Details on test material:
None
Specific details on test material used for the study:
Code No.: FAT 45082/D
Batch No.: EN 35713.42
Stability: guaranteed by the sponsor until June, 1989
Description: solid
Test Article Received: 11 February, 1985

Test animals

Species:
rat
Strain:
other: Tif:RAIf(SPF)
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source:CIBA-GEIGY LTD. Tierfarm, 4334 Sisseln, Switzerland
- Weight at study initiation: 194 - 240 g
- Fasting period before study: Prior to dosing, the animals were fasted overnight.
- Housing:The animals were kept under conventional laboratory conditions. They were caged in groups of 5 in Macrolon cages type 4 with standardized soft wood bedding (Société Parisienne des sciures, Pantin).
- Diet: ad libitum.
- Water: ad libitum.

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 22 ± 3
- Humidity (%): 55 ± 15
- Air changes: approximately 15 air changes/h.
- Photoperiod: 12 hours light/day

IN LIFE Phase: Date of Administration: 26 February, 1985; Date of Completion: 12 March, 1985

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
other: Distilled water containing 0.5 % carboxymethylcellulose and 0.1 % polysorbate 80 (prepared by Pharmaceuticals Division, Ciba-Geigy Ltd.).
Details on oral exposure:
VEHICLE
- Concentration in vehicle: 20 ml/kg bw

MAXIMUM DOSE VOLUME APPLIED: 5000 mg/kg bw
Doses:
5000 mg/kg bw
No. of animals per sex per dose:
5 males and 5 females
Control animals:
not specified
Details on study design:
- Duration of observation period following administration: 14 days
- Frequency of observations: daily
- Body weight: on days 1, 7, and 14
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, body weight, mortality
Statistics:
From the body weights, the group means and their standard deviations were calculated.

Results and discussion

Preliminary study:
None
Effect levels
Key result
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 5 000 mg/kg bw
Based on:
test mat.
Mortality:
No mortality observed.
Clinical signs:
other: Dyspnoea, exophthalmos, ruffled fur, and curved body positions were seen, being common symptoms in acute tests. The animals recovered within 14 days.
Gross pathology:
No deviations from normal morphology were found.
Other findings:
None

Any other information on results incl. tables

None

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The acute oral LD50 of FAT 45082/D in rats of both sexes observed over a period of 14 days is considered to be >5000 mg/kg bw.
Executive summary:

The acute oral toxicity of FAT 45082/D was evaluated in a study conducted according to OECD Guideline 401. A group of rats comprising of 5 males and 5 females were administered the test substance at 5000 mg/kg bw. No mortality occured. Dyspnoea, exophthalmos, ruffled fur, and curved body positions were seen, being common symptoms in acute tests. The animals recovered within 14 days. Normal body weight gain was noted. No gross organ changes were observed. Hence, the acute oral LD50 of FAT 45082/D in rats of both sexes observed over a period of 14 days is considered to be >5000 mg/kg bw.