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Diss Factsheets

Toxicological information

Eye irritation

Currently viewing:

Administrative data

Endpoint:
eye irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
12 Jul 1993 - 27 Jul 1993
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1993
Report date:
1993

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
Deviations:
not specified
Qualifier:
according to guideline
Guideline:
EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion)
Deviations:
not specified
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
Ethanaminium, N-[4-[[4-(diethylamino)phenyl][4-(ethylamino)-1-naphthalenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-ethyl-, molybdatetungstatephosphate
EC Number:
215-410-7
EC Name:
Ethanaminium, N-[4-[[4-(diethylamino)phenyl][4-(ethylamino)-1-naphthalenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-ethyl-, molybdatetungstatephosphate
Cas Number:
1325-87-7
Molecular formula:
(C33H40N3)z.O3.P2O5.(WO3)x.(MoO3)y 12 ≤ x+y ≤ 24 (x≥1; y≥1) z = 6-10
IUPAC Name:
tetrakis(4-{[4-(diethylamino)phenyl][4-(ethylamino)naphthalen-1-yl]methylidene}-N,N-diethylcyclohexa-2,5-dien-1-iminium) (phosphonatoperoxy)tungstenoylolate molybdenumoylolate
Test material form:
solid: nanoform
Details on test material:
Shape
Shape Category: spheroidal
Shape: spherical
Pure Shape: Yes
Typical Composition: ≤100%
range: >0; ≤100%

Particle size distribution & range
Shape Category: spheroidal
Percentile D10, typical value: 35nm
Percentile D10, range: ≥10; ≤50nm
Percentile D50, typical value: 50nm
Percentile D50, range: ≥35; ≤100nm
Percentile D90, typical value: 85nm
Percentile D90, range: ≥50; ≤150nm
Fraction in size range 1-100nm: ≥50; ≤100%

Crystallinity
structure: Amorphous
Pure structure: Yes

Specific Surface Area
Typical specific surface area: ca. 50m2/g
Range: ≥10; ≤200m2/g
skeletal density ca. 1.8 g/cm3

Surface Functionalisation/treatment
surface treatment applied: no
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: 0151N/901035
- Storage: room temperature
- Physical Appearance: dark purple powder

Test animals / tissue source

Species:
rabbit
Strain:
New Zealand White
Details on test animals or tissues and environmental conditions:
TEST ANIMALS
- Age at study initiation: 12 – 16 weeks old
- Weight at study initiation: 2.20 – 2.42 kg
- Housing: suspended metal cages
- Diet: ad libitum
- Water: ad libitum
- Acclimation period: 5 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 18 - 23
- Humidity (%): 56 - 68
- Air changes (per hr): 15
- Photoperiod (hrs dark / hrs light): 12/ 12

Test system

Vehicle:
unchanged (no vehicle)
Controls:
yes, concurrent no treatment
Amount / concentration applied:
0.1 mL (63mg)
Observation period (in vivo):
1, 24, 48 and 72 hours, 7 and 14 days
Number of animals or in vitro replicates:
3

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:
0
Reversibility:
other: not applicable as no effect seen
Irritation parameter:
cornea opacity score
Basis:
animal #2
Time point:
24/48/72 h
Score:
1.7
Max. score:
2
Reversibility:
fully reversible within: 14 days
Irritation parameter:
cornea opacity score
Basis:
animal #3
Time point:
24/48/72 h
Score:
1
Max. score:
1
Reversibility:
fully reversible within: 14 days
Irritation parameter:
iris score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
0
Reversibility:
other: not applicable
Irritation parameter:
iris score
Basis:
animal #2
Time point:
24/48/72 h
Score:
1
Max. score:
1
Reversibility:
fully reversible within: 7 days
Irritation parameter:
iris score
Basis:
animal #3
Time point:
24/48/72 h
Score:
1
Max. score:
1
Reversibility:
fully reversible within: 7 days
Irritation parameter:
conjunctivae score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0.3
Max. score:
1
Reversibility:
fully reversible within: 48h
Irritation parameter:
conjunctivae score
Basis:
animal #2
Time point:
24/48/72 h
Score:
2
Max. score:
2
Reversibility:
fully reversible within: 14 days
Irritation parameter:
conjunctivae score
Basis:
animal #3
Time point:
24/48/72 h
Score:
2
Max. score:
2
Reversibility:
fully reversible within: 14 days
Irritation parameter:
chemosis score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
0
Reversibility:
other: not applicable
Irritation parameter:
chemosis score
Basis:
animal #2
Time point:
24/48/72 h
Score:
2
Max. score:
2
Reversibility:
fully reversible within: 14 days
Irritation parameter:
chemosis score
Basis:
animal #3
Time point:
24/48/72 h
Score:
2
Max. score:
2
Reversibility:
fully reversible within: 7 days
Other effects:
Blue – coloured staining was noted on two treated eyes during the study. The staining did not affect evaluation of ocular effects.

Any other information on results incl. tables

   animal #1                    animal #2           animal #3  
 24 h  48 h  72 h  mean  animal #1  24 h  48 h  72 h  mean  animal #2  24 h  48 h 72 h   mean animal #3   mean
 A - Redness  1  0  0  0.3 2 2  2  2  2  2  2  2  1.4
 B - Chemosis  0  0  0  0  2  2  2  2  2  2  2

 2

 1.3
D - Iris  0  0  0  0  1  1  1  1  1  1  1 0.7 

 E - Degree of Opacity

 0

 0

 0

 0

 1

 2

 2

 1.7

 1

 1

 1

 1

 0.9

Applicant's summary and conclusion

Interpretation of results:
Category 2A (irritating to eyes) based on GHS criteria
Conclusions:
The test item is classed as irritating to the eye