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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Skin irritation / corrosion

Currently viewing:

Administrative data

Endpoint:
skin irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
7th October 1986 to 10th October 1986
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
comparable to guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1986
Report date:
1986

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
EPA OPPTS 870.2500 (Acute Dermal Irritation)
GLP compliance:
yes

Test material

Constituent 1
Reference substance name:
1,3-bis(2-hydroxyethyl)-5,5-dimethylimidazolidine-2,4-dione
EC Number:
701-388-0
Cas Number:
26850-24-8
IUPAC Name:
1,3-bis(2-hydroxyethyl)-5,5-dimethylimidazolidine-2,4-dione
Test material form:
other: pale yellow solid block
Details on test material:
- Name of test material (as cited in study report): Dantocol DHE
- Physical state: pale yellow solid block
- Lot/batch No.: M5469330
- Storage condition of test material: room temperature in the dark

Test animals

Species:
rabbit
Strain:
New Zealand White

Test system

Type of coverage:
semiocclusive
Preparation of test site:
clipped
Vehicle:
unchanged (no vehicle)
Controls:
no
Amount / concentration applied:
500 mg
Duration of treatment / exposure:
4 hours
Observation period:
72 hours
Number of animals:
Six

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
mean
Time point:
24/48/72 h
Score:
0.06
Max. score:
2
Reversibility:
fully reversible within: 48 hours.
Irritation parameter:
edema score
Basis:
mean
Time point:
24/48/72 h
Score:
0
Max. score:
0
Reversibility:
other: no effects seen.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The test material was found to be only slightly irritating to the skin of rabbits under the conditions of this study.
Executive summary:

In an in vivo skin irritation study New Zealand White rabbits (six animals) were exposed to 500 mg of the substance for 4-hours, followed by an observation periiod of 72 hours. The results indicate that the substance is a non-irritant.