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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1986
Report date:
1986

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
other: 79/831/EWG, Annex V, Part B
Deviations:
yes
Remarks:
lower number of animals used
GLP compliance:
yes
Test type:
standard acute method
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Bis(methylcyclohexyl) phthalate
EC Number:
248-765-1
EC Name:
Bis(methylcyclohexyl) phthalate
Cas Number:
27987-25-3
Molecular formula:
C22H30O4
IUPAC Name:
bis(1-methylcyclohexyl) phthalate
Test material form:
liquid: viscous

Test animals

Species:
rat
Strain:
Wistar
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Winkelmann, Borchen
- Weight at study initiation: male: 180 g (mean; female: 164 g (mean)
- Age at study initiation: young adult rats
- Fasting period before study: 16 h
- Housing: 2 animals per cage (Makrolon 3)
- Diet (e.g. ad libitum): Altromin-Haltungsdiât 1324, Fa. Altromin GmbH, 4937 Lage (D), ad libitum
- Water (e.g. ad libitum): tap wter (ad libitum)
- Acclimation period: 6 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): ca. 23°C
- Humidity (%): 50-70%
- Photoperiod (hrs dark / hrs light): 12/12

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
other: 2% CMC (carboxymethyl cellulose) and 0.5% cremophor
Doses:
2000 mg/kg bw
No. of animals per sex per dose:
2
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days
- Frequency of observations and weighing:1 d before and on day of application; 48 h, 7 d and 14 days after application
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, body weight, histopathology

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 occurred.
Clinical signs:
other: Durring the first 3 hours after application all animals showed reduced activity.
Gross pathology:
There were no macroscopic pathological findings in the animals sacrificed at the end of the observation period.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
Under the conditions of this study the median lethal dose of Edenol 344 after oral administration was found to be greater than 2000 mg/kg bw in rats.