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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
1994
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods with acceptable restrictions

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1994
Report date:
1994

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Exploratory acute oral study on rats: three males and three females were dosed with 200 mg/kg bw and 2000 mg/kg bw of the test substance. Observation period not specified.
GLP compliance:
not specified
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Dioctyl phosphonate
EC Number:
217-315-6
EC Name:
Dioctyl phosphonate
Cas Number:
1809-14-9
Molecular formula:
C16H35O3P
IUPAC Name:
dioctyl phosphonate
Test material form:
liquid

Test animals

Species:
rat
Strain:
not specified
Sex:
male/female

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
not specified
Doses:
200 mg/kg bw and 2000 mg/kg bw
No. of animals per sex per dose:
3 males and 3 females for each dose.
Control animals:
not specified
Details on study design:
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs observation.

Results and discussion

Effect levels
Key result
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 2 000 mg/kg bw
Based on:
test mat.
Mortality:
No mortality was observed at both doses (200 mg/kg bw and 2000 mg/kg bw).
Clinical signs:
other: Piloerection, hunched posture and dyspnea were seen; additionally, reduced locomotor activity was observed in all animals. The animals recovered within 3 to 6 days.
Gross pathology:
At autopsy, no deviations from normal morphology were found.

Applicant's summary and conclusion

Interpretation of results:
other: not classified for acute oral toxicity according to the CLP Regulation (EC n.1272/2008).
Conclusions:
LD50 rat oral route (males/females) > 2000 mg/kg bw and no classification for acute oral toxicity is required according to the CLP Regulation (EC n.1272/2008).
Executive summary:

The exploratory acute oral LD50 for the substance administered by gavage to the young albino rat of both sexes was estimated to be greater than 2000 mg/kg bw.