Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: dermal
Type of information:
experimental study
Adequacy of study:
key study
Study period:
June 1996
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Guideline Study. GLP compliance

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1996
Report date:
1996

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 402 (Acute Dermal Toxicity)
GLP compliance:
yes (incl. QA statement)
Test type:
fixed dose procedure
Limit test:
yes

Test material

Constituent 1
Reference substance name:
[1,1’-Biphenyl]-2-carbonitrile, 4’-[(2-butyl-4-oxo-1,3-diazaspiro[4.4]non-1-en-3-yl)methyl]-
IUPAC Name:
[1,1’-Biphenyl]-2-carbonitrile, 4’-[(2-butyl-4-oxo-1,3-diazaspiro[4.4]non-1-en-3-yl)methyl]-
Constituent 2
Chemical structure
Reference substance name:
4'-((2-butyl-4-oxo-1,3-diazaspiro[4.4]non-1-ene-3-yl)methyl)(1,1'-biphenyl)-2-carbonitrile
EC Number:
604-075-6
Cas Number:
138401-24-8
Molecular formula:
C25H27N3O
IUPAC Name:
4'-((2-butyl-4-oxo-1,3-diazaspiro[4.4]non-1-ene-3-yl)methyl)(1,1'-biphenyl)-2-carbonitrile
Details on test material:
- Name of test material (as cited in study report): SR 47563
- Lot/batch No.: 6R00003
- Analytical purity: pure
- Storage condition of test material: at room temperature

Test animals

Species:
rat
Strain:
Sprague-Dawley
Sex:
male/female

Administration / exposure

Type of coverage:
semiocclusive
Vehicle:
water
Duration of exposure:
Single administration
Doses:
2000 mg/kg
No. of animals per sex per dose:
5 males and 5 females
Control animals:
not specified

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 2 000 mg/kg bw

Any other information on results incl. tables

No clinical signs and no cutaneous reaction were observed during the study.

No death occured during the observation period.

Body weight gain was reduced in females the first week; it returned to normal thereafter. Body weight gain of males was not affected.

Macroscopic examination of the main organs of the animals revealed no apparent abnormalities.

Applicant's summary and conclusion

Interpretation of results:
not classified
Remarks:
Migrated information Criteria used for interpretation of results: other: Commission Directive 93/21/EEC
Conclusions:
Under the experimental conditions used, the dermal LD50 of the test substance was higher than 2000 mg/kg in rats.