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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
key study
Study period:
12 june - 27 July 2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Guideline study (OECD).

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2012
Report date:
2012

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 423 (Acute Oral toxicity - Acute Toxic Class Method)
Version / remarks:
17 December, 2001
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method B.1 tris (Acute Oral Toxicity - Acute Toxic Class Method)
Version / remarks:
30 May, 2008
Qualifier:
according to guideline
Guideline:
EPA OPPTS 870.1100 (Acute Oral Toxicity)
Version / remarks:
December 2002
Qualifier:
according to guideline
Guideline:
other: Japan MAFF Testing Guideline of 12 Nousan No. 8147
GLP compliance:
yes (incl. QA statement)
Remarks:
Bioassay, Labor fuer biologische Analytik GmbH, Heidelberg, Germany
Test type:
acute toxic class method
Limit test:
yes

Test material

Constituent 1
Test material form:
solid - liquid: suspension
Details on test material:
- Name of test material (as cited in study report): L4-Ligand
- Physical state: white solid
- Analytical purity: 97.0g/100g ± 0.3g/100g
- Lot/batch No.: 0005473663
- Expiration date of the lot/batch: 01 February, 2013
- Storage condition of test material: room temperature, under N2, protected against humidity

Test animals

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: approximately 10 weeks
- Weight at study initiation: mean (administration 1) 186.3g ± 4.04g, mean (adminsitration 2) 181.0g ± 3.61g
- Fasting period before study: 16 hours
- Housing: single housing in Makrolon Type III cages
- 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): 10
- Photoperiod (hrs dark / hrs light): 12/12

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
olive oil
Details on oral exposure:
VEHICLE
- Concentration in vehicle: 0.4g/mL
- Amount of vehicle: 5 mL/kg bw

MAXIMUM DOSE VOLUME APPLIED: approximately 1 mL

DOSAGE PREPARATION: stirring with a homogenizer and a magnetic stirrer to ensure homogeneity

CLASS METHOD
- Rationale for the selection of the starting dose: by request of the sponsor
Doses:
2000 mg/kg bw
No. of animals per sex per dose:
3 (sequential testing of 2 groups)
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days
- Frequency of observations and weighing: observations for clinical signs are done several time on the day of application and daily thereafter on workdays, individual body weights were determined before administration and on day 7 and 14
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, body weight
Statistics:
Calculations were performed using Microsoft Excel 2003 and checked with a calculator.

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: no mortalities were observed
Mortality:
No mortality occured in both test groups.
Clinical signs:
other: No clinical signs were observed for both test groups.
Gross pathology:
There were no macroscopic pathological findings at the end of the observation period.

Applicant's summary and conclusion

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