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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
other: Non GLP and non guideline study. Meets generally accepted scientific standards. No details are given regarding the test substance like purity etc. Information regarding clinical signs or gross necropsy are not presented.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1978
Report date:
1978

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
Deviations:
yes
Remarks:
Only four animals of each sex were used for each dosing group. No details are given regarding clinical signs or gross necropsy.
GLP compliance:
no
Test type:
standard acute method
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Hexamethylene bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]
EC Number:
252-346-9
EC Name:
Hexamethylene bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]
Cas Number:
35074-77-2
Molecular formula:
C40H62O6
IUPAC Name:
6-{[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl]oxy}hexyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate

Test animals

Species:
rat
Strain:
Wistar
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Age at study initiation: approx. 12 weeks
- Fasting period before study: yes, overnight
- Diet: ad libitum
- Water: ad libitum

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
corn oil
Details on oral exposure:
VEHICLE
- Concentration in vehicle: 50%
Doses:
1250, 2500, 5000 mg/kg bw (screening test)
5000 mg/kg bw (main study)
No. of animals per sex per dose:
1 (screening test)
4 (main study)
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days
- Necropsy of survivors performed: no

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 5 000 mg/kg bw
Based on:
test mat.
Mortality:
No deaths were observed up to the highest tested dose.
Clinical signs:
other: No data
Gross pathology:
No data

Applicant's summary and conclusion

Interpretation of results:
practically nontoxic
Remarks:
Migrated information