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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:
23. Feb - 3 March 1981
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Well performed and reported study equivalent to OECD guideline 405.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1981
Report date:
1981

Materials and methods

Test guidelineopen allclose all
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
Deviations:
yes
Remarks:
4 days acclimatisation
Qualifier:
according to guideline
Guideline:
other: proposed guidelines of the US EPA paragraph 163.81-4 "Primary Eye Irritation Study", Federal Register, Vol. 43, No. 163, Aug. 22, 1978
Deviations:
no
GLP compliance:
no
Remarks:
performed before GLP guidelines

Test material

Constituent 1
Chemical structure
Reference substance name:
N-(2-ethoxyphenyl)-N'-(4-isododecylphenyl)oxamide
EC Number:
279-979-3
EC Name:
N-(2-ethoxyphenyl)-N'-(4-isododecylphenyl)oxamide
Cas Number:
82493-14-9
Molecular formula:
C28H40N2O3
IUPAC Name:
N-(2-ethoxyphenyl)-N'-[4-(10-methylundecyl)phenyl]ethanediamide

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, Füllinsdorf, Switzerland
- Age at study initiation: 12-16 weeks
- Weight at study initiation: 2.3-3.0 kg
- Housing: individually in stainless steel cages
- Water (e.g. ad libitum): ad libitum
- Diet: Standard Kliba 341 Rabbit Maintenance Food, Klingentalmühle AG, Switzerland
- Acclimation period: 4 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 22+/-2°C
- Photoperiod (hrs dark / hrs light): 12/12

Test system

Vehicle:
unchanged (no vehicle)
Controls:
not required
Amount / concentration applied:
0.1 g
Duration of treatment / exposure:
no washing performed
Observation period (in vivo):
24, 48, 72 h, 4, 7, 14 and 21 days
Number of animals or in vitro replicates:
3
Details on study design:
A single dose of the test material in an amount of 0.1 g was inserted into the conjunctival sac of the left eye of the rabbits and th lids were gently closed for a few seconds. The right eye remained untreated and served as a control. In 3 out of 6 rabbits approx. 30 seconds after treatment the treated eye was flushed with physiological saline for about one minute.

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
cornea opacity score
Basis:
mean
Time point:
other: 24h/48h/72h
Score:
0
Max. score:
80
Remarks on result:
other: no effects
Irritation parameter:
iris score
Basis:
mean
Time point:
other: 24h/48h/72h
Score:
0
Max. score:
10
Remarks on result:
other: no effects
Irritation parameter:
conjunctivae score
Basis:
mean
Time point:
other: 24h/48h/72h
Score:
0
Max. score:
20
Remarks on result:
other: no effects
Irritant / corrosive response data:
no effects observed

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
With reference the reported scores (absence of effects) Hostavin 3206 does not have to be classified as irritant to the eyes according to the criteria laid down in the EU Dangerous Substances Directive (67/548/EEC) and in the EU Classification Labelling and Packaging Regulation (1272/2008/EC).
Executive summary:

Hostavin 3206 was tested for its eye irritant properties in 6 New Zealand White rabbits.The study was performed equivalent to OECD Guideline 405.No effects were observed in all animals 24, 48 and 72 hours after application.

With reference the reported scores (absence of effects) Hostavin 3206 does not have to be classified as irritant to the eyes according to the criteria laid down in the EU Dangerous Substances Directive (67/548/EEC) and in the EU Classification Labelling and Packaging Regulation (1272/2008/EC).