Y-513

Eye irritation

Administrative data

Endpoint:

eye irritation: in vivo

Type of information:

experimental study

Adequacy of study:

key study

Study period:

25 March - 03 April 2008

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Study was performed according to OECD and EC guidelines and according to GLP principles.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2008

Report date:

2008

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 405 (Acute Eye Irritation / Corrosion)

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion)

Deviations:

no

Test guideline 3

Qualifier:

according to guideline

Guideline:

EPA OPPTS 870.2400 (Acute Eye Irritation)

Deviations:

no

GLP compliance:

yes

Test material

Test material information

Constituent 1

Test material form:

solid: particulate/powder

Remarks:

migrated information: powder

Details on test material:

- Name of test material (as cited in study report): Y-513
- Purity test date: no data
- Lot/batch No.: F-1570
- Expiration date of the lot/batch: 19 February 2013
- Stability under test conditions: stable
- Storage condition of test material: At room temperature in the dark

Test animals / tissue source

Species:

rabbit

Strain:

New Zealand White

Details on test animals or tissues and environmental conditions:

TEST ANIMALS
- Source: Harlan, Horst, The Netherlands
- Age at study initiation: at least 6 weeks old
- Weight at study initiation: 1604 - 1929 g
- Housing: Individually in labeled cages with perforated floors (dimensions 56x44x37.5 cm).
- Diet (e.g. ad libitum): Pelleted diet for rabbits; approximately 100 grams per day. Hay was provided at least three times a week.
- Water (e.g. ad libitum): Free access to tap water
- Acclimation period: at least 5 days before start of treatment under laboratory conditions.


ENVIRONMENTAL CONDITIONS
- Temperature (°C): 20.0 - 21.4
- Humidity (%): 44 - 70
- Air changes (per hr): 15
- Photoperiod (hrs dark / hrs light): 12/12

Test system

Vehicle:

unchanged (no vehicle)

Controls:

other: The other eye remained untreated and served as the reference control.

Amount / concentration applied:

TEST MATERIAL
- Amount applied: 31.8 mg (0.1 ml)

Duration of treatment / exposure:

Single instillation

Observation period (in vivo):

72 hours

Number of animals or in vitro replicates:

3

Details on study design:

REMOVAL OF TEST SUBSTANCE
- Washing: not done

SCORING SYSTEM: Draize

TOOL USED TO ASSESS SCORE: 2% fluorescein

Results and discussion

In vivo

Results

Results 1

Irritation parameter:

cornea opacity score

Basis:

animal: 1, 2, 3

Time point:

other: Mean 24, 48 and 72 hours

Score:

0

Max. score:

4

Results 2

Irritation parameter:

iris score

Basis:

animal: 1, 2, 3

Time point:

other: Mean 24, 48 and 72 hours

Score:

0

Max. score:

2

Results 3

Irritation parameter:

conjunctivae score

Remarks:

redness

Basis:

animal #1

Time point:

other: Mean 24, 48 and 72 hours

Score:

0.3

Max. score:

3

Reversibility:

fully reversible within: 48 hours

Results 4

Irritation parameter:

conjunctivae score

Remarks:

redness

Basis:

animal #2

Time point:

other: Mean 24, 48 and 72 hours

Score:

1

Max. score:

3

Reversibility:

fully reversible within: 72 hours

Results 5

Irritation parameter:

conjunctivae score

Remarks:

redness

Basis:

animal #3

Time point:

other: Mean 24, 48 and 72 hours

Score:

0.3

Max. score:

3

Reversibility:

fully reversible within: 48 hours

Irritant / corrosive response data:

Instillation of approximately 32 mg of the test substance (a volume of approximately 0.1 mL) into one eye of each of three rabbits resulted in irritation of the conjunctivae, which consisted of redness, chemosis and discharge. The irritation had completely resolved within 48 hours in two animals and within 72 hours in the other animal.

No iridial irritation or corneal opacity were observed, and treatment of the eyes with 2% fluorescein, 24 hours after test substance instillation revealed no corneal epithelial damage.

There was no evidence of ocular corrosion.

Remnants of the test substance were present in the eye and/or on the outside of the eyelids between Days 1 and 3.
Yellow staining of the fur on the head and paws, caused by the test substance, was noted during the observation period.

No symptoms of systemic toxicity were observed in the animals during the test period and no mortality occurred.

Applicant's summary and conclusion

Interpretation of results:

not classified

Remarks:

Migrated information Criteria used for interpretation of results: EU

Conclusions:

Based on the results of an in vivo eye irritancy test, performed according to OECD and GLP guidelines, Y-513 is considered to be non irritating to the eyes.

Executive summary:

An in vivo eye irritation test was performed according to OECD and GLP guidelines. Instillation of the test substance resulted in irritation of the conjunctiva, which consisted of redness, chemosis and discharge. The irritation had completely resolved within 48 hours (for two animals) or 72 hours (one animal).

Based on these data, Y-513 is found to be not irritant to the eye and is not classified according to Regulation (EC) 1272/2008.