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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
1965
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:
1965
Report date:
1965

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 423 (Acute Oral toxicity - Acute Toxic Class Method)
Deviations:
yes
Remarks:
shorter observation period, reporting details
GLP compliance:
no
Test type:
acute toxic class method
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Octabenzone
EC Number:
217-421-2
EC Name:
Octabenzone
Cas Number:
1843-05-6
Molecular formula:
C21H26O3
IUPAC Name:
[2-hydroxy-4-(octyloxy)phenyl](phenyl)methanone

Test animals

Species:
rat
Strain:
other: CF Nelson
Sex:
male
Details on test animals or test system and environmental conditions:
no data

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
water
Details on oral exposure:
applied as 20% suspension in water
Doses:
10000 mg/kg bw
No. of animals per sex per dose:
10
Control animals:
no
Details on study design:
- Duration of observation period following administration: 7 days
- Frequency of observations and weighing: mortality daily, weighing at the beginning and the end
- Necropsy of survivors performed: yes
- Other examinations performed: none
Statistics:
not required

Results and discussion

Effect levels
Sex:
male
Dose descriptor:
LD50
Effect level:
> 10 000 mg/kg bw
Mortality:
none
Clinical signs:
other: no clinical signs observed
Gross pathology:
no findings upon necropsy

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met