Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Only limited information available

Data source

Reference
Reference Type:
study report
Title:
Unnamed

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion)
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
425-430-1
EC Name:
-
Cas Number:
6746-94-7
Molecular formula:
C5 H6
IUPAC Name:
ethynylcyclopropane

Test animals

Species:
rabbit
Strain:
New Zealand White

Test system

Type of coverage:
occlusive
Preparation of test site:
shaved
Vehicle:
unchanged (no vehicle)
Controls:
yes, concurrent no treatment
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.5 ml
- Concentration (if solution): undiluted
Duration of treatment / exposure:
4 hours
Observation period:
14 days
Number of animals:
3

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
mean
Remarks:
1-3
Time point:
other: 24, 48, 72 hrs
Score:
2
Max. score:
4
Reversibility:
not fully reversible within: 14 days
Irritation parameter:
edema score
Basis:
mean
Remarks:
1-3
Time point:
other: 24, 48, 72 hrs
Score:
1.66
Max. score:
4
Reversibility:
not fully reversible within: 14 days
Irritant / corrosive response data:
Desquamation (characterised by dryness and sloughing) developed in two animals.

Applicant's summary and conclusion

Interpretation of results:
irritating
Remarks:
Migrated information