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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: dermal
Type of information:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Comparable to OECD 402, except this limit test used 3 animals/sex rather than 5/sex as recommended by the OECD guideline.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1980
Report date:
1980

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 402 (Acute Dermal Toxicity)
Principles of method if other than guideline:
Other (1980). The method employed in the testing, evaluation, and the scoring of the results was similar to the methods described in Section 1500.40 of the U.S. Federal Hazardous Substances Act Regulations, 16 CFF, pg. 123.
GLP compliance:
yes
Test type:
standard acute method
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Triisodecyl phosphite
EC Number:
246-998-3
EC Name:
Triisodecyl phosphite
Cas Number:
25448-25-3
Molecular formula:
C30H63O3P
IUPAC Name:
Phosphorus acid, triisodecyl ester
Constituent 2
Reference substance name:
246-998-3.
IUPAC Name:
246-998-3.
Details on test material:
- Name of test material (as cited in study report): Triisodecyl phosphite - Commercial, purity: > 97% (Phosphorus content = 6.17 %)- Lot/batch No.: TDPx-003-04070A- Supplier: Borg Warner Company, Parkersburg, WV

Test animals

Species:
rabbit
Strain:
New Zealand White
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS- Weight at study initiation: 2.0 and 3.0 kg

Administration / exposure

Type of coverage:
occlusive
Vehicle:
unchanged (no vehicle)
Details on dermal exposure:
TEST SITE- Area of exposure: dorsal- Type of wrap if used: These treated areas were covered with large gauze patches and an impervious material was wrapped around the trunk of each animal. REMOVAL OF TEST SUBSTANCE- Washing (if done): excess material was removed. - Time after start of exposure: 24 hours
Duration of exposure:
24 hours
Doses:
5.0 g/kg body weight
No. of animals per sex per dose:
3
Control animals:
no
Details on study design:
- Duration of observation period following administration: 21 days

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 5 000 mg/kg bw
Mortality:
No animals died during the experiment.
Clinical signs:
other: No signs of toxicity, except for substantial skin irritation lasting over several days.
Gross pathology:
Gross pathological examination revealed no remarkable findings.

Applicant's summary and conclusion

Interpretation of results:
not classified
Remarks:
Migrated informationCriteria used for interpretation of results: EU
Conclusions:
No signs of dermal toxicity at the limit dose of 5 g/kg.
Executive summary:

No acutely toxic via the dermal route at limit dose of 5 g/kg. Not classified as acutely toxic.