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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2004
Report date:
2004

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
Qualifier:
according to guideline
Guideline:
EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion)
Qualifier:
according to guideline
Guideline:
EPA OPPTS 870.2500 (Acute Dermal Irritation)
Qualifier:
according to guideline
Guideline:
other: JMAFF, Japanese Test Guidelines, November 2000, including the most recent partial revisions
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
benzene, 1,4-bis[2-[3,5-dimethoxy-4-(1- methylpropoxy)phenyl]ethenyl]-
Cas Number:
586410-55-1
Molecular formula:
C34 H42 O6
IUPAC Name:
benzene, 1,4-bis[2-[3,5-dimethoxy-4-(1- methylpropoxy)phenyl]ethenyl]-
Details on test material:
Read-across from CASRN586410-55-1 to the substance defined in section 1 allowed by belgian authority.

Test animals

Species:
rabbit
Strain:
New Zealand White
Details on test animals or test system and environmental conditions:
3 males (at least 6 weeks old and body weights at least 1.0kg)

Test system

Type of coverage:
semiocclusive
Preparation of test site:
other: clipped
Vehicle:
other: Milli-U water.
Controls:
not required
Amount / concentration applied:
500 mg moistened with 1ml of the vehicle
Duration of treatment / exposure:
4 h
Observation period:
mortality/viability: twice daily
toxicity: at least once daily
body weight: day of treatment (prior to application) and at termination
irritation: +/- 1, 24, 48 and 72 hours after the removal of the dressings and test substance
Number of animals:
3
Details on study design:
No control animals required as adjacent areas of the untreated skin of each animal served as controls.

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
animal #1
Remarks:
individual score
Time point:
other: at 1, 24, 48 and 72 h
Score:
0
Irritation parameter:
erythema score
Basis:
animal #2
Remarks:
individual score
Time point:
other: at 1, 24, 48 and 72 h
Score:
0
Irritation parameter:
erythema score
Basis:
animal #3
Remarks:
individual score
Time point:
other: at 1, 24, 48 and 72 h
Score:
0
Irritation parameter:
edema score
Basis:
animal #1
Remarks:
individual score
Time point:
other: at 1, 24, 48 and 72 h
Score:
0
Irritation parameter:
edema score
Basis:
animal #2
Remarks:
individual score
Time point:
other: at 1, 24, 48 and 72 h
Score:
0
Irritation parameter:
edema score
Basis:
animal #3
Remarks:
individual score
Time point:
other: at 1, 24, 48 and 72 h
Score:
0
Other effects:
None.

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: other: OECD (1998) and EC (67/548/EEC)
Conclusions:
not classified