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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:
1998-03-31 to 1998-05-19
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1998
Report Date:
1998

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Details on test material:
see below

Test animals / tissue source

Species:
rabbit
Strain:
New Zealand White
Details on test animals or tissues and environmental conditions:
TEST ANIMALS
- Source: Charles River Deutschland GmbH
- Weight at study initiation: 3.3- 3.9 kg
- Housing: in fully air-conditioned rooms in separate cages arranged in a battery
- Diet (e.g. ad libitum): ssniff K-H (V2333), ad libitum and hay (approx. 15 g daily)
- Water (e.g. ad libitum): water from automatic water dispensers, ad libitum
- Acclimation period: 1 week

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 20 ± 3degrees C
- Humidity (%): 50± 20%
- Photoperiod (hrs dark / hrs light): 12 hours daily of light

Test system

Vehicle:
unchanged (no vehicle)
Controls:
yes, concurrent no treatment
Amount / concentration applied:
100 mg
Duration of treatment / exposure:
24h
Observation period (in vivo):
Eyes were examined 1, 24, 48 and 72 hours after administration
At 24 and 72 hours as well as after 7 ,14 and 21 days, the eyes were also examined for corneal lesions under UV light after instillation of one drop of a 0.01 % fluorescein-sodium solution
Number of animals or in vitro replicates:
3
Details on study design:
REMOVAL OF TEST SUBSTANCE
- 24 hours after administration the treated eyes were washed out thoroughly with isotonic saline at approx. 37°C.

SCORING SYSTEM: according to Draize
-Cornea: degree of opacity (0-4), affected area (0-4)
- Iris (0-2)
- Conjunctivae: redness (0-3), chemosis (0-4), discharge (0-3)
- Additional information: S =slight, M =moderate, E =extreme, X = finding present, N = previous finding reversible, ? = not assessable

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
conjunctivae score
Remarks:
(redness)
Basis:
mean
Remarks:
all animals
Time point:
24/48/72 h
Score:
1.11
Max. score:
3
Reversibility:
fully reversible within: 7 days
Irritation parameter:
chemosis score
Basis:
mean
Remarks:
all animals
Time point:
24/48/72 h
Score:
0.11
Max. score:
4
Reversibility:
fully reversible within: 48 hours
Remarks on result:
no indication of irritation
Irritation parameter:
cornea opacity score
Basis:
mean
Remarks:
all animals
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
iris score
Basis:
mean
Remarks:
all animals
Time point:
24/48/72 h
Score:
0.11
Max. score:
2
Reversibility:
fully reversible within: 48 hours
Remarks on result:
no indication of irritation
Other effects:
The nictitating membranes and iris were violet discoloured.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
Reactive Red FC73270 is not irritating to eye.
Executive summary:

In a primary eye irritation study according to OECD 405, 100 mg of Reactive Red FC73270 was instilled into the conjunctival sac of the left eye of 3 New Zealand albino rabbits obtained from Charles River Deutschland GmbH weighing 3.3-3.9 kg for 24 hours. Treated eyes were washed with isotonic saline at approx. 37°C 24 hours after administration and at all other designated examination times at which the treated eyes still showed discharge or at which a corneal examination with fluorescein sodium solution took place. Animals were then observed for 21 days. Irritation was scored according to Draize.

In this study, Reactive Red FC73270 is not irritating to eye according to the CLP regulation.