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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

Description of key information

Based on weight of evidence approaches the LD50 for oral and dermal application of the test substance were found to be > 2000 mg/kg bw and < 5000 mg/kg bw.

Key value for chemical safety assessment

Acute toxicity: via oral route

Link to relevant study records

Referenceopen allclose all

Endpoint:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
1971
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Remarks:
old report but sufficient for assessment
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
Deviations:
not specified
GLP compliance:
no
Test type:
standard acute method
Limit test:
no
Species:
rat
Strain:
Sprague-Dawley
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Weight at study initiation: 150 - 300 g
Route of administration:
oral: gavage
Vehicle:
corn oil
Details on oral exposure:
VEHICLE
- Concentration in vehicle: 50 %
Doses:
1470, 2150, 3160 and 4640 mg/kg bw
No. of animals per sex per dose:
10 animals in the 5000 mg/kg group and 5 animals in each of the other groups were used.
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days
- Other examinations performed: clinical signs
Key result
Sex:
male/female
Dose descriptor:
LD50
Effect level:
2 250 mg/kg bw
Based on:
test mat.
95% CL:
> 1 680 - < 3 000
Mortality:
In the 5000 mg/kg bw dose group, 9/10 animals died. Mortality occured in all dose groups.
Clinical signs:
other: Clinical signs observed were depression, hypopnea, ataxia and piloerection.
Gross pathology:
Some of the dead rats and of those that were sacrifieced at termination had dark red areas in the lungs.
Interpretation of results:
GHS criteria not met
Conclusions:
In an acute oral toxicity study in rats, the LD50 was found to be 2250 mg/kg bw.
Executive summary:

An acute oral toxicity study was conducted on rats. First, a dose of 5000 mg/kg bw was tested and 9/10 animals died. Afterwards the following doses were applied: 1470, 2150, 3160 and 4640 mg/kg bw. Depression, hypopnea, ataxia and piloerection were observed and some of the dead animals or those who were sacrificed after study termination had dark red areas in the lungs. Mortality occured in all dose groups. Based on the available results, the LD50 was determined to be 2250 mg/kg bw.

Endpoint:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
1971
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods with acceptable restrictions
Remarks:
old summary of a study report, basic information given
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
Deviations:
not applicable
GLP compliance:
no
Test type:
standard acute method
Limit test:
yes
Species:
rat
Strain:
Sprague-Dawley
Sex:
not specified
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Housing: individually
- Diet: commercial diet ad libitum
- Water: ad libitum
Route of administration:
oral: gavage
Vehicle:
unchanged (no vehicle)
Doses:
5000 mg/kg bw
No. of animals per sex per dose:
10 rats
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days
- Frequency of observations and weighing: Toxic signs and mortalitiy were recorded daily
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs
Statistics:
The LD50 value was calculated according to Horn's method (Horn, H.J.,Biometric, 12: 311-322, 1956).
Key result
Sex:
not specified
Dose descriptor:
LD50
Effect level:
< 5 000 mg/kg bw
Based on:
test mat.
Mortality:
9/10 animals died
Clinical signs:
other: Depression, hypopnea, ataxia, piloerection
Gross pathology:
Dead rats showed distended stomach.
Interpretation of results:
study cannot be used for classification
Conclusions:
The LD50 was found to be below 5000 mg/kg bw.
Executive summary:

10 rats were adiminstered the test substance at a concentration of 5000 mg/kg bw. As a result, the animals showed depression, hypopnea, ataxia and piloerection and 9 animals died. The dead rats showed distended stomachs. As a result, the LD50 was determined to be <5000 mg/kg bw.

Endpoint:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
1976
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods with acceptable restrictions
Remarks:
short summary of study results including only basic information
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
Deviations:
not specified
GLP compliance:
no
Test type:
standard acute method
Limit test:
no
Species:
rat
Strain:
not specified
Sex:
not specified
Route of administration:
oral: unspecified
Vehicle:
not specified
Doses:
670, 1310, 2560, 5000 mg/kg bw
No. of animals per sex per dose:
10 animals per dose (sex not specified)
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days
- Other examinations performed: clinical signs
Statistics:
The LD50 was calculated.
Key result
Sex:
not specified
Dose descriptor:
LD50
Effect level:
2 300 mg/kg bw
Based on:
test mat.
95% CL:
> 1 500 - < 3 100
Mortality:
1 animal in 1310 mg/kg bw dose group died on day 1; 4 from the 2560 mg/kg bw dose group died on day 1 and 1 animal died on day 2; all animals of the 5000 mg/kg bw dose group died on day 1.
Clinical signs:
other: Lethargy was observed from the 1310 mg/kg bw dose group onwards.
Gross pathology:
no data
Interpretation of results:
GHS criteria not met
Conclusions:
In an acute oral toxicity study in rats the LD50 value was found to be 2300 mg/kg bw.
Executive summary:

An acute oral toxicity study was conducted on rats. The test substance was applied to 4 groups of 10 rats each in the following concentrations: 670, 1310, 2560 and 5000 mg/kg bw. Lethargy was observed from the 1310 mg/kg bw dose group onwards. All animals of the highest dose group died on day 1 of the study as well as one animal of the 1310 mg/kg bw dose group. 5 animals of the 12560 mg/kg bw dose group died on days 1 and 2. Based on these results, the LD50 was found to be 2300 mg/kg bw.

Endpoint conclusion
Endpoint conclusion:
adverse effect observed
Dose descriptor:
LD50
Value:
2 250 mg/kg bw
Quality of whole database:
Old unpublished reports, but basic data given and sufficient for assessment.

Acute toxicity: via inhalation route

Endpoint conclusion
Endpoint conclusion:
no study available

Acute toxicity: via dermal route

Link to relevant study records

Referenceopen allclose all

Endpoint:
acute toxicity: dermal
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
1971
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods with acceptable restrictions
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 402 (Acute Dermal Toxicity)
Deviations:
not specified
GLP compliance:
no
Test type:
standard acute method
Limit test:
no
Species:
rabbit
Strain:
New Zealand White
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Housing: individually
- Diet: commercial diet ad libitum
- Water: ad libitum
Type of coverage:
occlusive
Vehicle:
unchanged (no vehicle)
Details on dermal exposure:
TEST SITE
- Area of exposure: 240 cm2
- % coverage: 10
- Type of wrap if used: rubber sleeve covered with Webril padding

TEST MATERIAL
- Amount applied: 5000 mL/kg bw
Duration of exposure:
24 h
Doses:
5000 mL/kg bw
No. of animals per sex per dose:
6 animals
Control animals:
not required
Details on study design:
- Duration of observation period following administration: 14 days
- Necropsy of survivors performed: yes
Key result
Sex:
male/female
Dose descriptor:
LD50
Effect level:
< 5 000 mg/kg bw
Based on:
test mat.
Mortality:
4 of 6 animals died on days 1, 3 and 4.
Clinical signs:
other: No toxic signs were observed in the surviving animals during the 14 day observation period.
Gross pathology:
The lungs appeared hemorrhagic in 2 animals that had died, 1 animal had white nodules in the liver, in one female both ovaries appeared abscessed.
Interpretation of results:
study cannot be used for classification
Conclusions:
In an acute dermal toxicity study the LD50 was found to be <5000 mg/kg bw.
Executive summary:

An acute dermal toxicity study was conducted on 6 New Zealand white rabbits. 5000 mL/kg bw were applied to the clipped skin sites under occlusion for 24 hours. After this exposure period, the animals were observed for 14 days. 2 rabbits died on day one and two further animals died on days 2 and 3. In two of this animals, the lungs were found to be hemorrhagic, one animal had white nodules in the liver and the ovaries of one female appeared abscessed. Clinical signs were not observed during the whole observation period in the surviving animals. Based on this result, the LD50 value was determined to be < 5000 mg/kg bw.

Endpoint:
acute toxicity: dermal
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
1976
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods with acceptable restrictions
Remarks:
summary of study results, basic information given
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 402 (Acute Dermal Toxicity)
Deviations:
not specified
GLP compliance:
no
Test type:
standard acute method
Limit test:
no
Species:
rabbit
Strain:
not specified
Sex:
not specified
Type of coverage:
not specified
Details on dermal exposure:
TEST MATERIAL
- Amount applied: 2500 mg/kg bw and 5000 mg/kg bw
Duration of exposure:
no data
Doses:
2500 and 5000 mg/kg bw
No. of animals per sex per dose:
4 animals in the low dose group, 6 animals in the high dose group
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days
- Other examinations performed: clinical signs
Key result
Sex:
not specified
Dose descriptor:
LD50
Effect level:
ca. 5 000 mg/kg bw
Based on:
test mat.
Mortality:
No mortality occured in the lower dose group, 3 of 6 animals died in the high dose group.
Clinical signs:
other: One rabbit of the high dose group exhibited slight lethargy and one showed flaccid tone. Anorexia and diarrhea were observed in 2 animals.
Gross pathology:
no data
Interpretation of results:
GHS criteria not met
Conclusions:
In an acute dermal toxicity study the LD50 of the test substance was determined to be approximately 5000 mg/kg bw.
Executive summary:

The test substance was dermally adminstered to rabbits to evaluate the LD50 value. 2500 mg/kg bw were applied to 4 animals and 5000 mg/kg bw were applied to 6 animals. In the low dose group, no animals died and no clinical signs were observed. In the high dose group, slight lethargy, anorexia, diarrhea and flaccid tone were observed and 3 rabbits died. Based on these results, the LD50 value was determined to be approximately 5000 mg/kg bw.

Endpoint conclusion
Endpoint conclusion:
adverse effect observed
Dose descriptor:
LD50
Value:
5 000 mg/kg bw
Quality of whole database:
Old unpublished reports, but basic data given and sufficient for assessment.

Additional information

Acute Toxicity: oral

An acute oral toxicity study was conducted on rats. First, a dose of 5000 mg/kg bw was tested and 9/10 animals died. Afterwards the following doses were applied: 1470, 2150, 3160 and 4640 mg/kg bw. Depression, hypopnea, ataxia and piloerection were observed and some of the dead animals or those who were sacrificed after study termination had dark red areas in the lungs. Mortality occured in all dose groups. Based on the available results, the LD50 was determined to be 2250 mg/kg bw.

10 rats were adiminstered the test substance at a concentration of 5000 mg/kg bw. As a result, the animals showed depression, hypopnea, ataxia and piloerection and 9 animals died. The dead rats showed distended stomachs. As a result, the LD50 was determined to be < 5000 mg/kg bw.

An acute oral toxicity study was conducted on rats. The test substance was applied to 4 groups of 10 rats each in the following concentrations: 670, 1310, 2560 and 5000 mg/kg bw. Lethargy was observed from the 1310 mg/kg bw dose group onwards. All animals of the highest dose group died on day 1 of the study as well as one animal of the 1310 mg/kg bw dose group. 5 animals of the 12560 mg/kg bw dose group died on days 1 and 2. Based on these results, the LD50 was found to be 2300 mg/kg bw.

As a conclusion, the LD50 was found to be > 2000 mg/kg bw and < 5000 mg/kg bw.

Acute toxicity: dermal

An acute dermal toxicity study was conducted on 6 New Zealand white rabbits. 5000 mL/kg bw were applied to the clipped skin sites under occlusion for 24 hours. After this exposure period, the animals were observed for 14 days. 2 rabbits died on day one and two further animals died on days 2 and 3. In two of this animals, the lungs were found to be hemorrhagic, one animal had white nodules in the liver and the ovaries of one female appeared abscessed. Clinical signs were not observed during the whole observation period in the surviving animals. Based on this result, the LD50 value was determined to be < 5000 mg/kg bw.

The test substance was dermally adminstered to rabbits to evaluate the LD50 value. 2500 mg/kg bw were applied to 4 animals and 5000 mg/kg bw were applied to 6 animals. In the low dose group, no animals died and no clinical signs were observed. In the high dose group, slight lethargy, anorexia, diarrhea and flaccid tone were observed and 3 rabbits died. Based on these results, the LD50 value was determined to be approximately 5000 mg/kg bw.

As a conclusion, the LD50 was found to be ca. 5000 mg/kg bw.

Justification for classification or non-classification

On the basis of the available data the substance is not considered to be classified for acute oral toxicity under Regulation (EC) No 1272/2008 (CLP), as amended for the tenth time in Regulation (EC) No 2017/776.