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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
Study period:
April 2000
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Not GLP compliant but good described study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2000
Report date:
2000

Materials and methods

Test guidelineopen allclose all
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: REAL DECRETO 363/1995, 10 march
Deviations:
no
GLP compliance:
no

Test material

Constituent 1
Reference substance name:
Acid Brown 75
IUPAC Name:
Acid Brown 75

Test animals / tissue source

Species:
rabbit
Strain:
New Zealand White
Details on test animals or tissues and environmental conditions:
TEST ANIMALS
- Source: authorized supplier.
- Weight at study initiation: 2099-2191 g
- Housing: Stainless steel single cage
- Diet: daily dose of 150 g experimental diet for rabbits, provided by an authorized vendor
- Water: filtered tap water (5 µm , ad libitum
- Acclimation period: 7 days
- Health check: during observation period

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 21± 2°C
- Humidity(%) :55 ± 25%
- Air changes (per hr): 15 air change per hour with filtered air (with 5 µm filter)
- Photoperiod: 12 hour cycle dark/light

Test system

Vehicle:
unchanged (no vehicle)
Controls:
yes
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied: 0.1 g
Duration of treatment / exposure:
24 hours
Observation period (in vivo):
21 days
Number of animals or in vitro replicates:
3
Details on study design:
OBSERVATIONS:
after 1, 24, 48, 72 hours and 7,14, and 21 days

SCORING SYSTEM:cornea, iris, conjunctiva (similar to OECD 405)

TOOL USED TO ASSESS SCORE: fluorescein

To facilitate consideration of the reactions, the operator had used a manual lamp and after 24 hours of application have used fiuorescein to evaluate any lesions.

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
cornea opacity score
Basis:
animal #1
Time point:
24/48/72 h
Score:
ca. 1
Max. score:
4
Reversibility:
fully reversible within: 7 days
Irritation parameter:
iris score
Basis:
animal #1
Time point:
24/48/72 h
Score:
ca. 1
Max. score:
2
Reversibility:
fully reversible within: 7 days
Irritation parameter:
conjunctivae score
Basis:
animal #1
Time point:
24/48/72 h
Score:
ca. 2.33
Max. score:
3
Reversibility:
fully reversible within: 14 days
Irritation parameter:
chemosis score
Basis:
animal #1
Time point:
24/48/72 h
Score:
ca. 2.33
Max. score:
4
Reversibility:
fully reversible within: 7 days
Irritation parameter:
cornea opacity score
Basis:
animal #2
Time point:
24/48/72 h
Score:
ca. 1
Max. score:
4
Reversibility:
fully reversible within: 7 days
Irritation parameter:
iris score
Basis:
animal #2
Time point:
24/48/72 h
Score:
ca. 1
Max. score:
2
Reversibility:
fully reversible within: 7 days
Irritation parameter:
conjunctivae score
Basis:
animal #2
Time point:
24/48/72 h
Score:
ca. 2.33
Max. score:
3
Reversibility:
fully reversible within: 14 days
Irritation parameter:
chemosis score
Basis:
animal #2
Time point:
24/48/72 h
Score:
ca. 3.33
Max. score:
4
Reversibility:
fully reversible within: 7 days
Irritation parameter:
cornea opacity score
Basis:
animal #3
Time point:
24/48/72 h
Score:
ca. 1
Max. score:
4
Reversibility:
fully reversible within: 7 days
Irritation parameter:
iris score
Basis:
animal #3
Time point:
24/48/72 h
Score:
ca. 1
Max. score:
2
Reversibility:
fully reversible within: 7 days
Irritation parameter:
conjunctivae score
Basis:
animal #3
Time point:
24/48/72 h
Score:
ca. 2.67
Max. score:
3
Reversibility:
fully reversible within: 14 days
Irritation parameter:
chemosis score
Basis:
animal #3
Time point:
24/48/72 h
Score:
ca. 3
Max. score:
4
Reversibility:
fully reversible within: 7 days

Applicant's summary and conclusion

Interpretation of results:
other: classified under Regulation 1272/2008 as H319 Cat 2
Conclusions:
The substance was tested for eye irritation following OECD 405. Under the experiemental conditions the substance show eye irritative properties.
Executive summary:

The substance was tested for eye irritation following OECD 405. Three NZW rabbits were tested for 24 hours and showed for 3/3 animals a score for conjuncitvae > 2.

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