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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
June 7-29, 2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP compliant study conducted to recognised international test guidelines

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2013
Report date:
2013

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 423 (Acute Oral toxicity - Acute Toxic Class Method)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method B.1 tris (Acute Oral Toxicity - Acute Toxic Class Method)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 870.1100 (Acute Oral Toxicity)
Deviations:
no
GLP compliance:
yes
Test type:
acute toxic class method
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Diisobutyl hexahydrophthalate
EC Number:
275-069-5
EC Name:
Diisobutyl hexahydrophthalate
Cas Number:
70969-58-3
Molecular formula:
C16H28O4
IUPAC Name:
bis(2-methylpropyl) cyclohexane-1,2-dicarboxylate
Details on test material:
- Name of test material : DIBE (diisobutylhexahydrophthalate)
- Physical state: Liquid
- Lot/batch No.: T60211/349
- Expiration date of the lot/batch: 2012-12-15
- Storage condition of test material: room temperature, protected from light

Test animals

Species:
rat
Strain:
Sprague-Dawley
Sex:
female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source:Charles River Italia S.p.A.
- Age at study initiation:7 - 8 weeks old
- Weight at study initiation:180- 231 g
- Housing: Group hosed in polysulphone solid bottom cages
- N° of animal/cage: Up to 5/cage during acclimatisation; 3/cage during study period
- Diet: 4 RF 18 (Mucedola S.r,l)
- Diet supply: ad libitum except for an overnight fast prior to dosing and 4 hours following dosing.
- Water :ad libitum
- Acclimation period:at least 5 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 22°c +/- 2°c
- Humidity (%):55% +/- 15%
- Air changes: 15 to 25 air changes per hour
- Photoperiod: Artificial (fluorescent tubes) , daily light/dark cycle of 12/12 hours


IN-LIFE DATES: From: 2012-06-07 To: 2012-06-29

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
corn oil
Details on oral exposure:
VEHICLE
- Concentration in vehicle: 200 mg/mL
- Amount of vehicle (if gavage): 10 mL/kg bodyweight
- Justification for choice of vehicle: Substance non-soluble/miscible in aqueous vehicles

MAXIMUM DOSE VOLUME APPLIED: 10 mL/kg body weight

DOSAGE PREPARATION (if unusual): Admixture w/v

CLASS METHOD (if applicable)
- Rationale for the selection of the starting dose: Expected lack of toxcity sed on information from structurally analogous substances
Doses:
2000 mg/kg bw
No. of animals per sex per dose:
6
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days
- Frequency of observations and weighing: Examination of clinical signs 0.5, 2 and 4 hours after treatment and daily observations thereafter; bodyweights were determined before treatment and weekly thereafter
- Necropsy of survivors performed: yes
- Other examinations performed: no
Statistics:
no statistics performed

Results and discussion

Effect levels
Sex:
female
Dose descriptor:
LD50
Effect level:
> 2 000 mg/kg bw
Mortality:
0/6 animals
Clinical signs:
other: Salivation in 1 animal following dosing, recoveryt within 4 hours of dosing.
Gross pathology:
No abnormal findings
Other findings:
none

Applicant's summary and conclusion

Interpretation of results:
not classified
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
Acute oral toxicity of the substance has been investigated according to OECD/EU test guidelines. The LD50 was determined to be in excess of 2000 mg/kg body weight.
Executive summary:

Acute oral toxicity of the substance has been investigated according to OECD/EU test guidelines. The LD50 was determined to be in excess of 2000 mg/kg body weight.