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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 corrosion: in vitro / ex vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2017
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Report date:
2017

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 439 (In Vitro Skin Irritation: Reconstructed Human Epidermis Test Method)
Qualifier:
according to guideline
Guideline:
EU Method B.46 (In Vitro Skin Irritation: Reconstructed Human Epidermis Model Test)
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Thuj-4(10)-ene
EC Number:
222-212-4
EC Name:
Thuj-4(10)-ene
Cas Number:
3387-41-5
Molecular formula:
C10H16
IUPAC Name:
4-methylidene-1-(propan-2-yl)bicyclo[3.1.0]hexane

In vitro test system

Test system:
human skin model
Source species:
other: EpiDermTM tissues
Cell type:
non-transformed keratinocytes
Cell source:
other: EpiDermTM tissues were procured from MatTek In Vitro Life Science Laboratories, Brati-slava.

Test animals

Species:
other: EpiDermTM-Kit

Test system

Type of coverage:
occlusive
Controls:
yes, concurrent positive control
yes, concurrent negative control
Number of animals:
3

Results and discussion

In vitro

Results
Irritation / corrosion parameter:
% tissue viability
Value:
> 50
Vehicle controls validity:
not specified
Negative controls validity:
valid
Positive controls validity:
valid

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
Thuj-4(10)-ene is considered non-irritant to skin in the Reconstructed human Epidermis (RhE) Test Method.