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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 corrosion: in vitro / ex vivo
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019
Report date:
2019

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 431 (In Vitro Skin Corrosion: Human Skin Model Test)
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
3',5-bis(prop-2-en-1-yl)-[1,1'-biphenyl]-2,4'-diol; 5,5'-bis(prop-2-en-1-yl)-[1,1'-biphenyl]-2,2'-diol
Cas Number:
947686-05-7
Molecular formula:
C18H18O2
IUPAC Name:
3',5-bis(prop-2-en-1-yl)-[1,1'-biphenyl]-2,4'-diol; 5,5'-bis(prop-2-en-1-yl)-[1,1'-biphenyl]-2,2'-diol
Test material form:
solid

Results and discussion

In vitro

Resultsopen allclose all
Irritation / corrosion parameter:
% tissue viability
Value:
>= 11.9
Vehicle controls validity:
valid
Negative controls validity:
valid
Positive controls validity:
valid
Irritation / corrosion parameter:
% tissue viability
Value:
>= 113.6
Vehicle controls validity:
valid
Negative controls validity:
valid
Positive controls validity:
valid

Applicant's summary and conclusion

Conclusions:
Magnolia Officinalis Bark Extract is considered non-corrosive to skin in the Reconstructed Human Epidermis (RHE) Test Method.