Registration Dossier

Administrative data

Endpoint:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
key study
Study period:
31 July - 22 Aug 2014
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP-Guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2014
Report date:
2014

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 423 (Acute Oral toxicity - Acute Toxic Class Method)
Version / remarks:
2001
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method B.1 tris (Acute Oral Toxicity - Acute Toxic Class Method)
Version / remarks:
2008
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 870.1100 (Acute Oral Toxicity)
Version / remarks:
2002
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: Japanese Ministry of Agriculture, Forestry and Fisheries (JMAFF), 12 Nohsan, Notification No. 8147, April 2011; including the most recent partial revisions.
Deviations:
no
GLP compliance:
yes
Test type:
acute toxic class method
Limit test:
yes

Test material

Constituent 1
Details on test material:
- Name of test material (as cited in study report): trade name given
- Substance type: white powder
- Analytical purity: 99.5%
- Lot/batch No.: 1592ZG-076
- Expiration date of the lot/batch: Aug 2015
- Storage condition of test material: at room temperature
- Other: pH: 6.4-6.3 (1% in water)

Test animals

Species:
rat
Strain:
other: Crl:WI (Han) (outbred, SPF-Quality)
Sex:
female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Charles River Deutschland, Sulzfeld, Germany
- Age at study initiation: approx. 8-10 weeks
- Weight at study initiation: 159-196 g
- Fasting period before study: Animals were fasted overnight prior to administration and until approx. 1 hour and 10 minutes (first group at 2000 mg/kg bw) or approx. 30 minutes (second group at 2000 mg/kg bw) after the second administration of the test substance. Water was available ad libitum.
- Housing: groups of 3 animals in Makrolon cages (MIV type; height 18 cm), sterilized sawdust was used as bedding material, paper as cage-enrichment
- Diet: SM R/M-Z (SSNIFF Spezialdiäten GmbH, Soest, Germany), ad libitum
- Water: tap water, ad libitum
- Acclimation period: at least 5 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 18 to 24
- Humidity (%): 40-70
- Air changes (per hr): at least 10
- Photoperiod (hrs dark / hrs light): 12/12

IN-LIFE DATES: From: 31 July 2014 To: 22 Aug 2014

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
propylene glycol
Details on oral exposure:
MAXIMUM DOSE VOLUME APPLIED: 10 mL/kg bw

FREQUENCY: Due to a maximum concentration of 10% test substance formulations two dosages within 24 hours on Day 1 were applied. The first on t=0 hours and the second on t=3 hours.
Doses:
2000 mg/kg bw (by administration of two times 1000 mg/kg bw)
No. of animals per sex per dose:
6 (3 per step)
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days
- Frequency of observations and weighing: Animals were observed at periodic intervals on the day of dosing (Day 1) and once daily thereafter until Day 15. Individual body weights were determined on Day 1 before administration of the test substance and thereafter in weekly intervals. Observations on mortality were made twice daily.
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, body weight

Results and discussion

Effect levels
Sex:
female
Dose descriptor:
LD50
Effect level:
> 2 000 mg/kg bw
Based on:
test mat.
Remarks on result:
other: LD50 cut-off 5000 mg/kg bw according to OECD 423
Mortality:
No mortality occurred during the study period.
Clinical signs:
Hunched posture and piloerection were noted for all animals between Days 1 and 3. Uncoordinated movements were noted for one animal on Day 1.
Body weight:
All animals gained the expected body weight over the study period.
Gross pathology:
No abnormalities were noted at necropsy of animals.

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