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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 vitro / ex vivo
Remarks:
other: human test
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Referenceopen allclose all

Reference Type:
study report
Title:
Unnamed
Report date:
2011
Reference Type:
study report
Title:
Unnamed
Report date:
2013

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Human Repeat Insult Patch Test
Principles of method if other than guideline:
Reference: Appraisal of the Safety of Chemicals in Food, Drugs and Cosmetics published by The Association of Food and Drug Officials of The United States.
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
3-[(3,4,5-trimethoxyphenyl)methylidene]pentane-2,4-dione
EC Number:
807-059-9
Cas Number:
945558-97-4
Molecular formula:
C15H18O5
IUPAC Name:
3-[(3,4,5-trimethoxyphenyl)methylidene]pentane-2,4-dione

In vitro test system

Source species:
human
Amount/concentration applied:
0.2ml of 2% Synoxyl HSS in corn oil.
0.2ml of 5% Synoxyl HSS in Synovea DOI.
Number of replicates:
50

Results and discussion

In vitro

Results
Remarks on result:
no indication of irritation

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information
Conclusions:
The test material when tested under occlusive conditions at 2% dilution in corn oil and 5% dilution in Synovea DOI may be considered as a NON-PRIMARY IRRITANT to the skin according to the reference.