Registration Dossier

Administrative data

Endpoint:
eye irritation: 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
Year:
2017
Report date:
2017

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 437 (Bovine Corneal Opacity and Permeability Test Method for Identifying i) Chemicals Inducing Serious Eye Damage and ii) Chemicals Not Requiring Classification for Eye Irritation or Serious Eye Damage)
Qualifier:
according to guideline
Guideline:
EU method B.47 (Bovine corneal opacity and permeability test method for identifying ocular corrosives and severe irritants)
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

Test animals / tissue source

Species:
other: Bovine corneas

Test system

Controls:
yes, concurrent positive control
yes, concurrent negative control

Results and discussion

In vitro

Results
Irritation parameter:
in vitro irritation score
Value:
ca. 1.34
Vehicle controls validity:
not specified
Negative controls validity:
valid
Positive controls validity:
valid

Applicant's summary and conclusion

Conclusions:
Under the conditions of this study, the test item Thuj-4(10)-ene showed no effects on the cornea of the bovine eye. The calculated IVIS (in vitro irritancy score) is 1.34.According to OECD Guideline no. 437 (Jul. 2013), a substance with an IVIS ≤ 3 requires no classification for eye irritation or serious eye damage.