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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1995
Report date:
1995

Materials and methods

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

Test material

Constituent 1
Reference substance name:
Fatty acids, C18 unsaturated, ethyl & methyl esters
EC Number:
941-981-3
Molecular formula:
not available, substance is UVCB
IUPAC Name:
Fatty acids, C18 unsaturated, ethyl & methyl esters

Test animals

Species:
rat
Strain:
Sprague-Dawley
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Hilltop Lab animals, Scottdale, Pennsylvania, USA
- Weight at study initiation: 203 - 213 g (males), 189 - 209 g (females)
- Fasting period before study: approximately 21 h
- Housing: individually housed in suspended stainless steel caging with mesh floors
- Diet: Purina Rodent Chow #5012, ad libitum
- Water: filtered tap water, ad lbitum
- Acclimation period: 8 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 19 - 21
- Photoperiod (hrs dark / hrs light): 12 / 12

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
unchanged (no vehicle)
Doses:
5000 mg/kg bw
No. of animals per sex per dose:
5
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days
- Frequency of observations and weighing: Individual weights were recorded just prior to test substance administration and again on days 7 and 14 (termination), the animals were observed for signs of gross toxicity, behavioral changes and mortality at 1, 3 and 24 h post-dosing and at least once daily thereafter for 14 days.
- Necropsy of survivors performed: yes (tissues of the thoracic and abdominal cavities were examined)

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 clinical signs occurred during the study period.
Body weight:
All animals gained weight.
Gross pathology:
Gross necropsy findings were generally unremarkable.

Applicant's summary and conclusion

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