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Diss Factsheets

Administrative data

Description of key information

No adverse findings were observed at the limit dose of 2000 mg/kg bw in rats (OECD 423, GLP).

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:
2014
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP and OECD guideline compliant study
Qualifier:
according to guideline
Guideline:
OECD Guideline 423 (Acute Oral toxicity - Acute Toxic Class Method)
Version / remarks:
(December 17, 2001)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
(Bioassay, Labor für biologische Analytik GmbH, Heidelberg)
Test type:
acute toxic class method
Limit test:
yes
Species:
rat
Strain:
Wistar
Sex:
female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Charles River Wiga GmbH, Sulzfeld, Germany
- Age at study initiation: approx. 10 – 11 weeks
- Weight at study initiation: mean weight test group 1: ; mean weight test group 2:
- Fasting period before study: Feed was withdrawn from the animals at least 16 hours before administration, but water was available ad libitum.
- Housing: single housing in Makrolon cages, type III
- Diet: VRF1(P); SDS Special Diets Services, Altrip, Germany
- Water: tap water ad libitum
- Acclimation period: at least 5 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 22°C ± 3°C
- Humidity (%): 30 – 70%
- Air changes (per hr): approx. 10
- Photoperiod (hrs dark / hrs light): 12 h / 12 h

Route of administration:
oral: gavage
Vehicle:
unchanged (no vehicle)
Details on oral exposure:
MAXIMUM DOSE VOLUME APPLIED: 2.24 mL/kg bw

CLASS METHOD (if applicable)
- Rationale for the selection of the starting dose: structure activity considerations
Doses:
2000 mg/kg bw
No. of animals per sex per dose:
6
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days
- Frequency of observations and weighing: Individual body weights shortly before administration (day 0), weekly thereafter and on the last day of observation. Additionally, at day of death in animals that died or were sacrificed moribund starting with study day 1. Recording of clinical signs several times on the day of administration, and at least once daily thereafter each workday for the individual animals. A check for any dead or moribund animals was made at least once each workday.
- Necropsy of survivors performed: yes
Statistics:
Calculations were performed using Microsoft Excel 2003 and checked with a calculator.
Sex:
female
Dose descriptor:
LD50
Effect level:
> 2 000 mg/kg bw
Based on:
test mat.
Remarks on result:
other: No mortality occurred.
Mortality:
none
Clinical signs:
other: During the first five hours after dosing, piloerection was observed in two animals of each test group.
Gross pathology:
There were no adverse findings observed at necropsy.
Interpretation of results:
practically nontoxic
Remarks:
Migrated information Criteria used for interpretation of results: OECD GHS
Endpoint conclusion
Endpoint conclusion:
no adverse effect observed
Dose descriptor:
discriminating dose
Value:
2 000 mg/kg bw

Acute toxicity: via inhalation route

Endpoint conclusion
Endpoint conclusion:
no study available

Acute toxicity: via dermal route

Endpoint conclusion
Endpoint conclusion:
no study available

Additional information

Justification for classification or non-classification