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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:
04.03.2002 to 30.07.2002
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2002
Report date:
2002

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion)
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
(3-chloropropyl)dimethoxymethylsilane
EC Number:
242-056-0
EC Name:
(3-chloropropyl)dimethoxymethylsilane
Cas Number:
18171-19-2
Molecular formula:
C6H15ClO2Si
IUPAC Name:
(3-chloropropyl)dimethoxymethylsilane

Test animals / tissue source

Species:
rabbit
Strain:
Himalayan
Details on test animals or tissues and environmental conditions:
TEST ANIMALS
- Source: Laboratory of Pharmacology and Toxicology KG
- Age at study initiation: Males were approximately five months and the female nine months.
- Weight at study initiation: Males: 2.5-2.6 kg and female: 2.6 kg
- Housing: for eight hours following instillation the animals were kept singly in restrainers which allowed free head movements but prevented a complete body turn and wiping of the eyes with paws.
- Diet: ad libitum
- Water: ad libitum
- Acclimation period: at least 20 days


ENVIRONMENTAL CONDITIONS
- Temperature (°C): 20± 3
- Humidity (%): 55 ±15
- Air changes (per hr): No data
- Photoperiod (hrs dark / hrs light): 12/12

IN-LIFE DATES: From: 09.04.2002 To: 03.05.2002

Test system

Vehicle:
unchanged (no vehicle)
Controls:
not required
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.1 ml



Duration of treatment / exposure:
Eyes were not rinsed, so exposure lasted until the test substance was cleared naturally from the eye.
Observation period (in vivo):
72 hours (at 1, 24, 48 and 72 hours)
Number of animals or in vitro replicates:
Two males and one female
Details on study design:
REMOVAL OF TEST SUBSTANCE
- Washing: No washing done


SCORING SYSTEM: according to Draize and OECD TG 405.


TOOL USED TO ASSESS SCORE: 24 hours after instillation the eyes were treated additionally with fluorescein and examined.

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
cornea opacity score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
cornea opacity score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
cornea opacity score
Basis:
animal #3
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
iris score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
iris score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
iris score
Basis:
animal #3
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
conjunctivae score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
3
Remarks on result:
no indication of irritation
Irritation parameter:
conjunctivae score
Basis:
animal #2
Time point:
24 h
Score:
1
Max. score:
3
Reversibility:
fully reversible within: 24 hours
Irritation parameter:
conjunctivae score
Basis:
animal #2
Time point:
48 h
Score:
0
Max. score:
3
Remarks on result:
no indication of irritation
Irritation parameter:
conjunctivae score
Basis:
animal #2
Time point:
72 h
Score:
0
Max. score:
3
Remarks on result:
no indication of irritation
Irritation parameter:
conjunctivae score
Basis:
animal #3
Time point:
24/48/72 h
Score:
0
Max. score:
3
Irritation parameter:
chemosis score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
chemosis score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
chemosis score
Basis:
animal #3
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritant / corrosive response data:
Grade 1 conjunctival redness was noted in two animals one hour after instillation and in one of these animals after 24 hours.
Grade 1 conjunctival chemosis was observed in the same two animals, one hour after instillation.
The cornea and iris were not affected.
Other effects:
No other effects reported.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
In an eye irritation study, conducted according to OECD Test Guideline 405 and in compliance with GLP (reliability score 1), 3-chloropropyl(dimethoxy)methylsilane was not irritating to the eyes of Himalayan rabbits. There were no systemic effects.