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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:
08 April - 11 April 1994
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1994
Report date:
1994

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: TSCA, 40 CFR, part 798, subpart E guideline section 798.000 (1989)
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
424-970-3
EC Name:
-
Cas Number:
166255-23-8
Molecular formula:
C16-H14-O3.C6-H16-O3-Si
IUPAC Name:
Triethoxysilylpropyl Dibenzoyl Resorcinol
Test material form:
solid
Details on test material:
Color: Light beige
Specific details on test material used for the study:
Stability: stable
Solubility: toluene, methylene chloride
Insoluble: water
Storage conditions: Room temperature

Test animals / tissue source

Species:
rabbit
Strain:
New Zealand White
Details on test animals or tissues and environmental conditions:
TEST ANIMALS
- Source: Eastern Rabbit Breeding Laboratory, Taunton, MA, USA
- Age at study initiation: 10-12 weeks
- Weight at study initiation: 2-3 kg
- Housing: Individually housed in suspended stainless steel cages with hardwood chips as bedding material
- Diet: commercial rabbit ration (Agway Prolab, Waverly, NY), ad libitum
- Water: municipal tap water, ad libitum
- Acclimation period: minimum of 3 days

ENVIRONMENTAL CONDITIONS (SET CONDITIONS)
- Temperature (°C): 20±3
- Humidity (%): 30-70
- Air changes (per hr): minimum of 10
- Photoperiod (hrs dark / hrs light): 12/12

IN-LIFE DATES: From: 08 April To: 11 April 1994

Test system

Vehicle:
unchanged (no vehicle)
Controls:
not required
Amount / concentration applied:
100 mg; The test substance was grounded to a fine powder. The weight of 0.1 mL volume of the powder was greater than 100 mg.
Duration of treatment / exposure:
Single instillation
Observation period (in vivo):
Eyes were examined at 1, 24, 48, and 72 hours after treatment using the Draize scale. Fluorescein staining was used during each examination, excluding the 1 hour exam. Reading of reactions was facilitated by the use of a hand held slit-lamp.
Number of animals or in vitro replicates:
3 males and 3 females
Details on study design:
Both eyes of each rabbit were examined for macroscopic findings with a fluorescein dye procedure before the experimental start.

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
conjunctivae score
Remarks:
Redness
Basis:
animal #3
Time point:
24 h
Score:
1
Max. score:
3
Reversibility:
fully reversible within: 48 hours
Irritation parameter:
cornea opacity score
Basis:
animal: 1, 2, 3, 4, 5 and 6
Time point:
24/48/72 h
Score:
0
Max. score:
4
Reversibility:
other: not applicable
Remarks on result:
no indication of irritation
Irritation parameter:
iris score
Basis:
animal: 1, 2, 3, 4, 5 and 6
Time point:
24/48/72 h
Score:
0
Max. score:
2
Reversibility:
other: not applicable
Remarks on result:
no indication of irritation
Irritation parameter:
conjunctivae score
Remarks:
Redness
Basis:
animal: 1, 2, 4, 5 and 6
Time point:
24/48/72 h
Score:
0
Max. score:
3
Reversibility:
other: not applicable
Remarks on result:
no indication of irritation
Irritation parameter:
chemosis score
Basis:
animal: 1, 2, 3, 4, 5 and 6
Time point:
24/48/72 h
Score:
0
Max. score:
4
Reversibility:
other: not applicable
Remarks on result:
no indication of irritation
Irritant / corrosive response data:
No positive signs of irritation were noted in the treated or control eyes at any of the observation points. No fluorescein staining was observed in the treated or control eyes at any observation point. No fluorescein staining was performed at the 1 hr observation point.
Other effects:
All animals exhibited an increase in body weight during the course of the study.
No overt signs of toxicity were evident during the course of the study, in any of the animals.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
Based on the results of an in vivo eye irritation study with 6 rabbits it is concluded that SDBR has no adverse effects on the eye.