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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:
From 21 April 1989 to 28 April 1989
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1989
Report date:
1989

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion)
Qualifier:
according to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
2,2'-oxybis[5,5-dimethyl-1,3,2-dioxaphosphorinane] 2,2'-disulphide
EC Number:
223-829-1
EC Name:
2,2'-oxybis[5,5-dimethyl-1,3,2-dioxaphosphorinane] 2,2'-disulphide
Cas Number:
4090-51-1
Molecular formula:
C10H20O5P2S2
IUPAC Name:
2,2'-oxybis[5,5-dimethyl-1,3,2-dioxaphosphorinane] 2,2'-disulphide

Test animals / tissue source

Species:
rabbit
Strain:
New Zealand White
Details on test animals or tissues and environmental conditions:
TEST ANIMALS
- Source: Kleintierfarm Madoerin AG, Fuellinsdorf, Switzerland
- Age at study initiation: 14-15 weeks
- Weight at study initiation: 2.4-2.7 kg
- Housing: individually in stainless steel cages
- Diet (ad libitum): Kliba 341, Batch 44/89 rabbit maintenance diet, Klingentalmühle, Kaiseraugst, Switzerland
- Water (ad libitum): tap water
- Acclimation period: 3 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 20 +/- 3
- Humidity (%): 40-70
- Air changes (per hr): 10-15
- Photoperiod (hrs dark / hrs light): 12/12

Test system

Vehicle:
unchanged (no vehicle)
Controls:
other: the untreated eye served as internal control
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.1 ml
Duration of treatment / exposure:
up to 72 h
Observation period (in vivo):
up to 72 h
Number of animals or in vitro replicates:
3 (1 male, 2 females)
Details on study design:
SCORING SYSTEM:
according to OECD 405 and EU B.5

TOOL USED TO ASSESS SCORE: hand-slit lamp

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
cornea opacity score
Basis:
mean
Time point:
other: 24, 48, 72 h
Score:
0
Max. score:
4
Reversibility:
other: no effects observed at any time point
Irritation parameter:
iris score
Basis:
mean
Time point:
other: 24, 48, 72 h
Score:
0
Max. score:
2
Reversibility:
other: no effects observed at any time point
Irritation parameter:
conjunctivae score
Basis:
mean
Time point:
other: 24, 48, 72 h
Score:
0
Max. score:
3
Reversibility:
other: no effects observed at any time point
Irritation parameter:
chemosis score
Basis:
mean
Time point:
other: 24, 48, 72 h
Score:
0
Max. score:
4
Reversibility:
other: no effects observed at any time point

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
Under the conditions of the study the test substance was not irritating to the eyes of rabbits.
Executive summary:

The test substance was subject to an eye irritation test according to guidelines OECD 405 and EU B.5. 0,1 mL of the test item were instilled into the eyes of 3 rabbits and irritating effects were evaluated up to 72 h after application. The untreated eyes servaed as internal controls. No effects were observed. Under the conditions of the study the test substance was not irritating to the eyes of rabbits.