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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
eye irritation: in vitro / ex vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
28 April 2016 to 28 April 2016
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 437 (Bovine Corneal Opacity and Permeability Test Method for Identifying Ocular Corrosives and Severe Irritants)
Deviations:
yes
Remarks:
One of the negative control eyes was excluded from the analysis since a spot was present after the incubation which resulted in an IVIS >3. This result does not affect the study outcome.
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
1,1'-(1-phenylethane-1,1-diyl)bis[4-(heptyloxy)benzene]
EC Number:
811-683-7
Cas Number:
1799707-26-8
Molecular formula:
C34H46O2
IUPAC Name:
1,1'-(1-phenylethane-1,1-diyl)bis[4-(heptyloxy)benzene]

Test animals / tissue source

Species:
other: Bovine
Strain:
not specified
Details on test animals or tissues and environmental conditions:
Isolated bovine cornea

Test system

Vehicle:
unchanged (no vehicle)
Controls:
yes, concurrent positive control
yes, concurrent negative control
Amount / concentration applied:
750 μl
Duration of treatment / exposure:
10 ± 1 minutes at 32 ± 1°C
Duration of post- treatment incubation (in vitro):
120 ± 10 minutes at 32 ± 1°C

Results and discussion

In vitro

Results
Irritation parameter:
in vitro irritation score
Value:
2.3
Vehicle controls validity:
not applicable
Negative controls validity:
valid
Positive controls validity:
valid
Remarks on result:
no indication of irritation

Applicant's summary and conclusion

Interpretation of results:
not classified
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
The test material did not induce ocular irritation under the conditions of this study.
Executive summary:

In an in vitro eye corrosion/irritation study, isolated bovine cornea was exposed to undiluted substance for 10-minutes. The in vitro irritation score was 2.3% and so the substance is considered to be a non-irritant to the eye.