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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
skin irritation: in vivo
Type of information:
experimental study
Adequacy of study:
other information
Study period:
25. Sep to 12. Oct 2000
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP, guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2001
Report date:
2001

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
Version / remarks:
combined acute toxicity and local tolerance study
Deviations:
not applicable
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
3-oxopregn-4-ene-21,17α-carbolactone
EC Number:
213-552-4
EC Name:
3-oxopregn-4-ene-21,17α-carbolactone
Cas Number:
976-70-5
Molecular formula:
C22H30O3
IUPAC Name:
(1R,3aS,3bR,9aR,9bS,11aS)-9a,11a-dimethyl-2,3,3a,3b,4,5,7,8,9,9a,9b,10,11,11a-tetradecahydrospiro[cyclopenta[a]phenanthrene-1,2'-oxolane]-5',7-dione
Details on test material:
- Name of test material (as cited in study report): aldona (ZK 57564)
- Analytical purity: 95.5% HPLC
- Impurities (identity and concentrations):
- Lot/batch No.: 59035042
- Expiration date of the lot/batch: Aug 2002

Test animals

Species:
rat
Strain:
Wistar

Test system

Type of coverage:
occlusive
Preparation of test site:
shaved
Vehicle:
other: 0.5% (m/v) Tylose MH 1000
Controls:
no
Duration of treatment / exposure:
24 h
Observation period:
14 days
Number of animals:
3/sex

Results and discussion

In vivo

Results
Irritation parameter:
overall irritation score
Basis:
mean
Score:
ca. 0
Other effects:
None of the animals showed alterations of the skin at the application sites.

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
not irritant, no classification required
Executive summary:

In the acute dermal toxicity study in rats (3/sex) no signs of skin irritation could be identified; non-irritant