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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:
17-04-1991 to 09-07-1991
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1991
Report date:
1991

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
Version / remarks:
OECD 1981, updated Guideline adopted February 24, 1987
Deviations:
no
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
(1's,4'r)-4'-pentyl-[1,1'-bi(cyclohexane)]-4-one
EC Number:
617-638-6
Cas Number:
84868-02-0
Molecular formula:
C17H30O
IUPAC Name:
(1's,4'r)-4'-pentyl-[1,1'-bi(cyclohexane)]-4-one

Test animals / tissue source

Species:
rabbit
Strain:
New Zealand White
Remarks:
Iva: NZW
Details on test animals or tissues and environmental conditions:
TEST ANIMALS
- Source: SAVO-Ivanovas, Kisslegg
- Age at study initiation: 17 - 19 weeks
- Mean weight at study initiation: 3.40 (3.25 - 3.49) kg
- Housing: cages type KK 017 (floor area: 75 x 54.5 = 4087 cm2, height: 38 cm; manufacturer: Hulskamp) on metal grids
- Diet: Altromin Standard Diet TPFV 2113, pellets from an automatic drinking device ad libitum
- Water: acidified, fully demineralized water from an automatic drinking device ad libitum
- Acclimation period: more than 7 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 20 - 24
- Humidity (%): 43 - 64
- Photoperiod (hrs dark / hrs light): daylight

Test system

Vehicle:
unchanged (no vehicle)
Controls:
yes, concurrent no treatment
Amount / concentration applied:
0.1 g test item
Observation period (in vivo):
7 days
Number of animals or in vitro replicates:
3 animals - 1 male and 2 females
Details on study design:
REMOVAL OF TEST SUBSTANCE
- Washing: not performed

SCORING SYSTEM: OECD 405

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
cornea opacity score
Basis:
mean
Time point:
24/48/72 h
Score:
0
Max. score:
4
Irritation parameter:
iris score
Basis:
mean
Time point:
24/48/72 h
Score:
0
Max. score:
2
Irritation parameter:
conjunctivae score
Remarks:
redness
Basis:
mean
Time point:
24/48/72 h
Score:
0.22
Max. score:
3
Reversibility:
fully reversible within: 48 hours
Irritation parameter:
chemosis score
Basis:
mean
Time point:
24/48/72 h
Score:
0.11
Max. score:
4
Reversibility:
fully reversible within: 48 hours
Irritation parameter:
other: discharge
Basis:
mean
Time point:
24/48/72 h
Score:
0.55
Max. score:
3
Reversibility:
fully reversible within: 48 hours
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:
iris score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
2
Remarks on result:
no indication of irritation
Irritation parameter:
conjunctivae score
Remarks:
redness
Basis:
animal #1
Time point:
24/48/72 h
Score:
0.33
Max. score:
3
Reversibility:
fully reversible within: 48 hours
Irritation parameter:
chemosis score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0.33
Max. score:
4
Reversibility:
fully reversible within: 48 hours
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:
iris score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0
Max. score:
2
Remarks on result:
no indication of irritation
Irritation parameter:
conjunctivae score
Remarks:
redness
Basis:
animal #2
Time point:
24/48/72 h
Score:
0
Max. score:
3
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:
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 #3
Time point:
24/48/72 h
Score:
0
Max. score:
2
Remarks on result:
no indication of irritation
Irritation parameter:
conjunctivae score
Remarks:
redness
Basis:
animal #3
Time point:
24/48/72 h
Score:
0.33
Max. score:
3
Reversibility:
fully reversible within: 48 hours
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
Irritation parameter:
other: discharge
Basis:
animal #1
Time point:
24/48/72 h
Score:
0.67
Max. score:
3
Reversibility:
not fully reversible within: 48 hours
Irritation parameter:
other: discharge
Basis:
animal #2
Time point:
24/48/72 h
Score:
0.33
Max. score:
3
Reversibility:
fully reversible within: 48 hours
Irritation parameter:
other: discharge
Basis:
animal #3
Time point:
24/48/72 h
Score:
0.67
Max. score:
3
Reversibility:
fully reversible within: 48 hours
Irritant / corrosive response data:
Ocular alterations:
After single instillation of 0.1 g test item into the conjunctival sac of the left eye, without rinsing, no irritation of the cornea and iris was observed. Examination of the conjunctivae revealed redness (score 1), chemosis in 1 animal (score 1), and discharge (score 1 - 2) at the first reading. Later on no irritation was seen. According to these results the test material is not regarded as an irritant.
Other effects:
Signs of systemic toxicity, body weight, mortality:
No signs of systemic toxicity were seen. The body weight development corresponded to that of untreated rabbits of the same age. All animals survived the 8 day observation period.

Any other information on results incl. tables

Eye irritation results

 

 

Animal

No.

Sex

Local findings (study day)

 

 

1

2

3

4

5

6

7

8

I Cornea

A

91003

m

0

0

0

0

0

0

0

0

91015

f

0

0

0

0

0

0

0

0

91021

f

0

0

0

0

0

0

0

0

B

91003

m

0

0

0

0

0

0

0

0

91015

f

0

0

0

0

0

0

0

0

91021

f

0

0

0

0

0

0

0

0

II Iris

A

91003

m

0

0

0

0

0

0

0

0

91015

f

0

0

0

0

0

0

0

0

91021

f

0

0

0

0

0

0

0

0

III Conjunctivae

A

91003

m

1

0

0

0

0

0

0

0

91015

f

0

0

0

0

0

0

0

0

91021

f

1

0

0

0

0

0

0

0

B

91003

m

1

0

0

0

0

0

0

0

91015

f

0

0

0

0

0

0

0

0

91021

f

0

0

0

0

0

0

0

0

Discharge

 

91003

m

2

0

0

0

0

0

0

0

 

91015

f

1

0

0

0

0

0

0

0

 

91021

f

2

0

0

0

0

0

0

0

Cornea A: rating according to OECD 405, B: rating according to Draize method, Iris A: rating according to OECD 405, Conjunctivae A: redness rating according to OECD 405, B: chemosis rating according to OECD 405

Body weight development

Body weight development in kg

Administration

Animal No.

Sex

Study day

Difference
day 1 to 8

1

5

8

Eye

91003

m

3.45

3.51

3.49

+0.04

91015

f

3.25

3.27

3.32

+0.07

91021

f

3.49

3.58

3.61

+0.12

Mean values

 

 

3.40

3.45

3.47

+0.07

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
In the primary eye irritation test no irritation of the cornea and iris was observed. The test item is not considered to be irritative.
Executive summary:

The primary irritation potential of the test item was investigated by instillation of 0.1 g into conjunctival sac of the left eye of each of three young adult New Zealand White rabbits in an OECD 405 study. The right eye remained untreated and served as control. After instillation the eyelids were closed for about 30 seconds. Rinsing of the eyes was not performed. Scoring of irritation effects was performed daily after application for 8 days. After single instillation of 0.1 g test item into the conjunctival sac of the left eye, without rinsing, no irritation of the cornea and iris was observed. Examination of the conjunctivae revealed redness (score 1), chemosis in 1 animal (score 1), and discharge (score 1 - 2) at the first reading. Later on no irritation was seen. According to these results the test material is not regarded as an irritant. No signs of systemic toxicity were seen. The body weight development corresponded to that of untreated rabbits of the same age. All animals survived the 8 day observation period. The average irritation values for conjunctival redness, conjunctival swelling, iritis and clouding of the cornea were 0 in each case. The test item was thus evaluated as not irritating to the eye. No staining of the cornea, sclera or conjunctivae of the treated eyes by the test item was observed. No corrosion was observed at any of the measuring intervals. Based upon the above results, the test item is considered to not be severely irritating to the eye.