Registration Dossier

Toxicological information

Acute Toxicity: oral

Currently viewing:

Administrative data

Endpoint:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1984-09-28 to 1984-10-12
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Complete guideline conform study report available. Study is performed under GLP.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1984
Report Date:
1984

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
GLP compliance:
yes
Test type:
standard acute method
Limit test:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid
Details on test material:
Hoechst product, now a Clariant (Germany) product. White powder, Formula: C27H45N04. 2.4% N-octadecyl-terephthalamate diamide, 2.8% dimethylphthalamate. Melting point 116-122 °C. Insoluble in water, moderately soluble in acetone, DMSO and DMF.
Specific details on test material used for the study:
Hoe S 2819. Precursor product to Clariant Hostagel HT 300.

Test animals

Species:
rat
Strain:
Wistar
Sex:
male/female

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
other: sesame oil
Doses:
single dose: 5000 mg/kg bw
No. of animals per sex per dose:
5 /sex/group
Control animals:
no

Results and discussion

Effect levels
Key result
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 5 000 mg/kg bw
Based on:
test mat.
Mortality:
No mortality occurred during the 14 day observation period
Clinical signs:
Immediate after application of the test substance the following signs of toxicity were observed: Hypoactivity, crouch and scrubby fur. The day after treatment no signs of toxicity were observed.
Body weight:
No effect on body weight were observed.
Gross pathology:
No macroscopic visible effects were observed.
Other findings:
No other findings.

Applicant's summary and conclusion

Interpretation of results:
other: practically nontoxic
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
based on the acute oral toxicity study, the median lethal dose (LD50) of the test substance after single oral administration to male and female Wistar rats observed over a period of 14 days is over 5000 mg/kg bw.
Executive summary:

A study was performed to determine the acute oral median lethal dose (LD50) of the test

material, administered once per oral gavage as a solution in 12.5% sesame oil in Wistar rat. The

method used followed that described in the OECD Guidelines for Testing of Chemicals (1981) No.

401 "Acute Oral Toxicity" referenced as EU Method B.1 (Acute Toxicity (Oral)).

Ten fasted animals (five per sex) were given a single oral dose of test material at the dose level of

5000 mg/kg bw. No mortality occurred. Immediate after application of the test substance the

following signs of toxicity as hypoactivity, crouch and scrubby fur were observed. No clinical

signs were observed the day after the treatment and during the observation period of 14 days. No

effect on body weight development was observed. At the end of the observation period all rats

were sacrificed with CO2 gas. Gross pathological examination dit not reveal any alteration.

Based on the results of above mentioned study the median lethal dose (LD50) of the test

substance after single oral administration to male and female rats, observed over a period of 14

days is 5000 mg/kg bw.