Registration Dossier

Administrative data

Endpoint:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
key study
Study period:
08 Feb - 22 Feb 1989
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: GLP-Guideline study with acceptable restrictions. Lack of details on test material.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1989
Report Date:
1989

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
Deviations:
yes
Remarks:
lack of details on test material
GLP compliance:
yes
Test type:
standard acute method
Limit test:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): only trade name given
- Physical state: off-white coloured waxy solid
- Analytical purity: no data
- Lot/batch No.: 978
- Storage condition of test material: room temperature

Test animals

Species:
rat
Strain:
Sprague-Dawley
Sex:
male/female
Details on test animals and environmental conditions:
TEST ANIMALS
- Source: Bantin & Kingman Ltd., Grimston, Aldborough, Hull, UK
- Age at study initiation: 5-8 weeks
- Weight at study initiation: 145-160 g (males), 139-151 g (females)
- Fasting period before study: overnight
- Housing: groups of up to five by sex in solid-floor polypropylene cages with sawdust bedding
- Diet: Rat and Mouse Expanded Diet No. 1 (Special Diet Services Ltd., Witham, Essex, UK), ad libitum
- Water: ad libitum
- Acclimation period: 5 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 19-21
- Humidity (%): 40-65
- Air changes (per hr): ca. 15
- Photoperiod (hrs dark / hrs light): 12/12

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
unchanged (no vehicle)
Details on oral exposure:
VEHICLE
- Concentration in vehicle: 500 mg/mL
- Amount of vehicle (if gavage): 10 mL/kg bw

MAXIMUM DOSE VOLUME APPLIED: 10 mL/kg bw

DOSAGE PREPARATION: For the purpose of the study, the test material was freshly prepared as a solution/suspension at the appropriate concentration in arachis oil B.P. The preparation was warmed to aid solubilisation.
Doses:
5000 mg/kg bw
No. of animals per sex per dose:
5
Control animals:
other: not required
Details on study design:
- Duration of observation period following administration: 14 days
- Frequency of observations and weighing: animals were observed 1 and 4 h after dosing and subsequently once daily for 14 days. Deaths and evidence of overt toxicity were recorded at each observation. Individual body weights were recorded on the day of treatment (Day 0) and on Days 7 and 14.
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, body weight, gross necropsy

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 5 000 mg/kg bw
Based on:
test mat.
Mortality:
No mortality occurred during the study period.
Clinical signs:
No overt signs of toxicity were noted during the study.
Body weight:
All animals showed the expected gains in body weight over the study period.
Gross pathology:
No abnormalities were noted at necropsy of animals killed at the end of the study.

Applicant's summary and conclusion

Interpretation of results:
not classified
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
CLP: not classified
DSD: not classified