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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
Not reported
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study does not specify any particular guidelines but was conducted to sound scientific principles; possibly with incomplete reporting or methodological deficiencies, which do not affect the quality of the relevant results. The study report is in German.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1968
Report date:
1968

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
The methodology used was similar to that outlined in OECD Guideline 401 (Acute Oral Toxicity). A limit dose of the test material was administered to male and female rats.
GLP compliance:
no
Remarks:
Study conducted in 1968, prior to introduction of GLP
Test type:
standard acute method
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Chlorotrioctylstannane
EC Number:
219-969-8
EC Name:
Chlorotrioctylstannane
Cas Number:
2587-76-0
Molecular formula:
C24H51ClSn
IUPAC Name:
chlorotrioctylstannane
Test material form:
not specified

Test animals

Species:
rat
Strain:
not specified
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Weight at study initiation: 90 to 120 g
- Acclimation period: 6 days

Administration / exposure

Route of administration:
oral: unspecified
Vehicle:
CMC (carboxymethyl cellulose)
Remarks:
0.5 g CMC in 100 mL distilled water
Details on oral exposure:
- Formualtion: Emulsion
- Substance concentration: 40 g in 100 mL
Doses:
1 dose at 4.0 g/kg
No. of animals per sex per dose:
5 animals per sex per dose
Control animals:
not specified
Details on study design:
- Duration of observation period following administration: 12 days
- Necropsy of survivors performed: Yes. The following regions of the body were examined using the appropriate aids (e.g. magnifying glass, stereomicroscope, instruments): coat and skin, eyes, nose, mouth, ear, anus, preputial, vulva, subcutaneous tissue, stomach, pelvic cavity and peritoneum, oesophagus, small intestine, colon, mesenteric lymph nodes, liver, pancreas, spleen, kidneys, bladder, seminal vesicle, prostrate, testicle, epididymis, ovary, uterus, vagina*, chest cavity and pleura, heart, lung, trachea, thymus, cerebrum*, middle ear and application site.
Parameters marked with * only examined in cases of suspected pathology due to the intoxication or other special pathological-anatomical findings.

Results and discussion

Effect levels
Key result
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 4 other: g/kg
Based on:
test mat.
Mortality:
All ten animals survived the testing period.
Clinical signs:
other: In five animals (4 males/1 female) slight swelling of the spleen was observed. Five animals (1 male/4 females) appeared to be unaffected.

Applicant's summary and conclusion

Interpretation of results:
other: Not classified in accordance with EU criteria
Conclusions:
Under the conditions of the study, the LD50 was determined to be > 4.0 g/kg in male and female rats.
Executive summary:

The potential of the test material to cause acute oral toxicity in the rat was investigated in accordance with sound scientific principles. The test material was administered to 5 male and 5 female rats as a limit dose in an emulsion, using a vehicle of carboxymethylcellulose (0.5 g CMC in 100 mL distilled water). The rats were treated with 4 g/kg of the test material.

Animals were observed for mortality and abnormal clinical signs for a period of 12 days after administration. All animals were weighed prior to treatment. All ten animals survived the test and were sacrificed at the end of the 12 day observation period.

In five animals (4 males/1 female), slight swelling of the spleen was observed whilst five animals (1 male/4 females) appeared to be unaffected.

Under the conditions of the study, the LD50 was determined to be > 4.0 g/kg in male and female rats.