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Toxicological information

Eye irritation

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Administrative data

Endpoint:
eye irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP study according EU/OECD guideline.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2014
Report date:
2014

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
Version / remarks:
(2012)
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
methyl 3-(chloromethyl)-1-(3-chloropyridin-2-yl)-1H-pyrazole-5-carboxylate
EC Number:
936-879-0
Cas Number:
1247712-63-5
Molecular formula:
C11H9Cl2N3O2
IUPAC Name:
methyl 3-(chloromethyl)-1-(3-chloropyridin-2-yl)-1H-pyrazole-5-carboxylate

Test animals / tissue source

Species:
rabbit
Strain:
New Zealand White

Test system

Vehicle:
unchanged (no vehicle)
Controls:
yes, concurrent no treatment
Duration of treatment / exposure:
1h
Observation period (in vivo):
14 days
Reading time points: 1, 24, 48, 72h and 7 and 14 days
Number of animals or in vitro replicates:
3

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
cornea opacity score
Basis:
animal #1
Time point:
other: 24-72h
Score:
1
Max. score:
4
Reversibility:
fully reversible within: 7 days
Irritation parameter:
cornea opacity score
Basis:
animal #2
Time point:
other: 24-72h
Score:
1
Max. score:
4
Reversibility:
fully reversible within: 7 days
Irritation parameter:
cornea opacity score
Basis:
animal #3
Time point:
other: 24-72h
Score:
1
Max. score:
4
Reversibility:
not reversible
Irritation parameter:
iris score
Basis:
mean
Time point:
other: 24-72h
Score:
0
Max. score:
2
Irritation parameter:
conjunctivae score
Basis:
animal #1
Time point:
other: 24-72h
Score:
2
Max. score:
3
Reversibility:
fully reversible within: 14 days
Irritation parameter:
conjunctivae score
Basis:
animal #2
Time point:
other: 24-72h
Score:
2
Max. score:
3
Reversibility:
fully reversible within: 14 days
Irritation parameter:
conjunctivae score
Basis:
animal #3
Time point:
other: 24-72h
Score:
2
Max. score:
3
Reversibility:
not reversible
Irritation parameter:
chemosis score
Basis:
animal #1
Time point:
other: 24-72h
Score:
2
Max. score:
4
Reversibility:
fully reversible within: 14days
Irritation parameter:
chemosis score
Basis:
animal #2
Time point:
other: 24-72h
Score:
2
Max. score:
4
Reversibility:
fully reversible within: 14 days
Irritation parameter:
chemosis score
Basis:
animal #3
Time point:
other: 24-72h
Score:
2
Max. score:
4
Reversibility:
not reversible

Applicant's summary and conclusion

Interpretation of results:
corrosive
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
There was no mortality observed during the study. The body weight and body weight changes were considered to be normal with no indication of any treatment related effect. There were no clinical signs of systemic toxicity observed that could be related to treatment. The test item applied to the rabbits’ eye mucosa, caused significant conjunctival and corneal effects, which were fully reversible within 14 days in 2/3 animals. As the conjunctival and corneal effects were not expected to reverse within 21 days in 1/3 animal the study was terminated 2 weeks after the treatment. Thus, the test item is considered to cause serious eye damage.