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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Endpoint:
acute toxicity: dermal
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
1974
Report date:
1974

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 402 (Acute Dermal Toxicity)
GLP compliance:
no
Test type:
standard acute method

Test material

Constituent 1
Chemical structure
Reference substance name:
Octan-4-olide
EC Number:
203-208-1
EC Name:
Octan-4-olide
Cas Number:
104-50-7
Molecular formula:
C8H14O2
IUPAC Name:
octan-4-olide

Test animals

Species:
rabbit

Administration / exposure

Doses:
5000 mg/kg bw
No. of animals per sex per dose:
10 animals

Results and discussion

Effect levels
Dose descriptor:
LD50
Effect level:
> 5 000 mg/kg bw
Mortality:
No mortalities were obesrved.
Clinical signs:
Diarrhea was observed in 2/10 rabbits.
Other findings:
Skin irritation:
Slight redness was observed in 4/10 rabbits.
Moderate redness was observed in 5/10 rabbits
Slight edema was observed in 3/10 rabbits
Moderate edema was observed in 5/10 rabbits.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
In an acute dermal toxicitiy study in rabbits, the LD50 for octan-4-olide was >5000 mg/kg bw.
Executive summary:

In an acute dermal toxicity study (1778), 10 rabbits were given octan-4-olide at doses of 5000 mg/kg bw.

No mortalities were observed and diarrhea was observed in 2/10 rabbits. Slight redness was observed in 4/10 rabbits and moderate redness was observed in 5/10 rabbits. Slight edema was observed in 3/10 rabbits and moderate edema was observed in 5/10 rabbits.

The LD50 was > 5000 mg/kg bw.