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Diss Factsheets

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
Study period:
15/1/1996 to 18/1/1996
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1996
Report date:
1996

Materials and methods

Principles of method if other than guideline:
Six (6) New Zealand white rabbits, free from visible ocular defects, each received a single intraocular application of one-tenth of one millilitre (0.1 ml) of the test article in one (1) eye. The contralateral eye, remaining untreated, served as a control. The eyes of all animals remained unwashed for 24 hours. O
Observations of corneal opacity, irits and conjunctivitis were recorded 24, 48 and 72 hours after treatment, and at four (4) and seven (7) days if irritation persisted. The test article was used as a ten (10) percent dilution in corn oil.
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
tridecyl 2-hydroxybenzoate
EC Number:
947-975-7
Molecular formula:
C20H32O3
IUPAC Name:
tridecyl 2-hydroxybenzoate

Test animals / tissue source

Species:
rabbit
Strain:
New Zealand White
Details on test animals or tissues and environmental conditions:
Not specified

Test system

Vehicle:
other: Corn oil
Amount / concentration applied:
0.1 ml in one eye
Duration of treatment / exposure:
7 days
Observation period (in vivo):
24/48/72 hours and 4 and 7 days
Number of animals or in vitro replicates:
6
Details on study design:
Six (6) New Zealand white rabbits, free from visible ocular defects, each received a single intraocular application of one-tenth of one millilitre (0.1 ml) of the test article in one (1) eye. The contralateral eye, remaining untreated, served as a control. The eyes of all animals remained unwashed for 24 hours. O
Observations of corneal opacity, irits and conjunctivitis were recorded 24, 48 and 72 hours after treatment, and at four (4) and seven (7) days if irritation persisted. The test article was used as a ten (10) percent dilution in corn oil.

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
overall irritation score
Basis:
mean
Time point:
24 h
Score:
ca. 2.3
Reversibility:
not specified
Remarks on result:
other: Substance not an irritant
Irritation parameter:
overall irritation score
Basis:
mean
Time point:
48 h
Score:
ca. 0
Reversibility:
not specified
Remarks on result:
other: Substance not an irritant
Irritation parameter:
overall irritation score
Basis:
mean
Time point:
72 h
Score:
ca. 0
Reversibility:
not specified
Remarks on result:
other: Substance not an irritant

Any other information on results incl. tables

  Average Draize Scores
  Hours Days
Group 24 48 72 4 7
Unwashed 2.3 0 0 - -

Applicant's summary and conclusion

Conclusions:
This laboratory finds that this test article is practically non-irritating to rabbits, under the conditions of this test. According to Federal Hazardous Substances Act Regulations, (16 CFR 1500.42), this test article is not an ocular irritant.
Executive summary:

Six (6) New Zealand white rabbits, free from visible ocular defects, each received a single intraocular application of one-tenth of one millilitre (0.1 ml) of the test article in one (1) eye. The contralateral eye, remaining untreated, served as a control. The eyes of all animals remained unwashed for 24 hours. O

Observations of corneal opacity, irits and conjunctivitis were recorded 24, 48 and 72 hours after treatment, and at four (4) and seven (7) days if irritation persisted. The test article was used as a ten (10) percent dilution in corn oil.

  Average Draize Scores
  Hours Days
Group 24 48 72 4 7
Unwashed 2.3 0 0 - -

Conclusion

This laboratory finds that this test article is practically non-irritating to rabbits, under the conditions of this test. According to Federal Hazardous Substances Act Regulations, (16 CFR 1500.42), this test article is not an ocular irritant.