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Diss Factsheets

Administrative data

Description of key information

Skin Irritation


The primary skin irritation potential of the test item was investigated according to OECD test guideline no 404. The test item (0.5 g) was applied to the intact skin of three New Zealand White rabbits under semi-occlusive conditions for four hours. The scoring of skin reactions was performed 1, 24, 48 and 72 hours after removal of the test item. A red discoloration was noted on the treated area. No skin reactions, neither erythema nor edema, were observed at any time point (score 0). No signs of systemic toxicity were observed.


Ocular Irritation


The primary eye irritation potential of the test item was investigated according to OECD guideline no 405. The test item (0.1 g) was applied to the intact eye of three New Zealand White rabbits for 1 h. Reddening of the conjunctivae was noted in all three animals 1 h after the tratment and persisted up to 48 h in two animals. Slight swelling was noted in one and slight occular discharge was noted in two animals in the 1 h reading.


The individual mean scores calculated across the three scoring times (24, 48, 72 h) were for corneal opacity 0.0 (three animals), for iris 0.0 (three animals), for conjunctivae redding 0.0, 0.7 and 0.7 and for chemosis 0.0 (three animals).


No abnormal findings were observed in the treated eye of any animal 72 h after treatment.


There was no indication of systemic toxicity.


 


 

Key value for chemical safety assessment

Skin irritation / corrosion

Link to relevant study records
Reference
Endpoint:
skin irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 24 APR 2007 to 05 MAY 2007
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Guideline study (OECD 404; EU method B4), in compliance with GLP
Qualifier:
according to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion)
Deviations:
no
GLP compliance:
yes
Species:
rabbit
Strain:
New Zealand White
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Elevage de Gerome (Quartier Labaste, Linxe, France)
- Age at study initiation: 11-12 weeks
- Weight at study initiation: 2.27 kg, 2,7 kg, 2,64 kg, all within the normal range of variability
- Housing: individual boxes
- Diet: standard laboratory diet, ad libitum
- Water: tap water from public distribution system, ad libitum
- Acclimation period: at least 5 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 17-21 (air condition)
- Humidity (%): 32-64
- Photoperiod (hrs dark / hrs light): 12/12
Type of coverage:
semiocclusive
Preparation of test site:
shaved
Vehicle:
water
Controls:
not required
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.5 g

VEHICLE
- Amount(s) applied (volume or weight with unit): a not further quantified amount of destilled water was used to moisten the test item
Duration of treatment / exposure:
4 h
Observation period:
72 h
Number of animals:
3 (female)
Details on study design:
TEST SITE
- Area of exposure: approximately 2.5 x 2.5 cm
- Type of wrap if used: gauze patch

REMOVAL OF TEST SUBSTANCE
- Washing (if done): rinsed with distilled water
- Time after start of exposure: 4 h

SCORING SYSTEM: as in OECD TG 404 described, reading at 1, 24, 48 and 72 h after removal of test item.
Irritation parameter:
erythema score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
4
Reversibility:
other: reversibility not relevant since no effects
Remarks on result:
no indication of irritation
Irritation parameter:
erythema score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0
Max. score:
4
Reversibility:
other: reversibility not relevant since no effects
Remarks on result:
no indication of irritation
Irritation parameter:
erythema score
Basis:
animal #3
Time point:
24/48/72 h
Score:
0
Max. score:
4
Reversibility:
other: reversibility not relevant since no effects
Remarks on result:
no indication of irritation
Irritation parameter:
edema score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
4
Reversibility:
other: reversibility not relevant since no effects
Remarks on result:
no indication of irritation
Irritation parameter:
edema score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0
Max. score:
4
Reversibility:
other: reversibility not relevant since no effects
Remarks on result:
no indication of irritation
Irritation parameter:
edema score
Basis:
animal #3
Time point:
24/48/72 h
Score:
0
Max. score:
4
Reversibility:
other: reversibility not relevant since no effects
Remarks on result:
no indication of irritation
Irritant / corrosive response data:
- No erythema or oedema were observed at any time point.
Other effects:
- Changes in body weight during the course of the study were not remarkable.
- No signs of systemic toxicity were observed.
- A red coloration was noted on the treated areas. Despite this coloration the macroscopical examinations of the cutaneous reaction were possible.
Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
The test item is not irritating to skin when tested under the conditions of the OECD guideline 404.
Executive summary:

The primary skin irritation potential of the test item was investigated according to OECD test guideline no 404.

The test item (0.5 g) was applied to the intact skin of three New Zealand White rabbits under semi-occlusive conditions for four hours. The scoring of skin reactions was performed 1, 24, 48 and 72 hours after removal of the test item. A red discoloration was noted on the treated are. No skin reactions, neither erythema nor edema, were observed at any time point (score 0). No signs of systemic toxicity were observed.

Endpoint conclusion
Endpoint conclusion:
no adverse effect observed (not irritating)

Eye irritation

Link to relevant study records
Reference
Endpoint:
eye irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 30 APR 2007 to 10 MAY 2007
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Guideline study (OECD 405; EU method B5), in compliance with GLP
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)
Deviations:
no
GLP compliance:
yes
Species:
rabbit
Strain:
New Zealand White
Details on test animals or tissues and environmental conditions:
TEST ANIMALS
- Source: Elevage de Gerome (Quartier Labaste, Linxe, France)
- Age at study initiation: 12-13 weeks
- Weight at study initiation: between 2.63 and 3.04 kg, all within the normal range of variability
- Housing: individual boxes
- Diet: standard laboratory diet. ad libitum
- Water: tap water from public distribution system, ad libitum
- Acclimation period: at least 5 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 19-22 (air condition)
- Humidity (%): 42-68
- Photoperiod (hrs dark / hrs light): 12/12
Vehicle:
unchanged (no vehicle)
Controls:
not required
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.1 g
Duration of treatment / exposure:
1 h
Observation period (in vivo):
72 h
Number of animals or in vitro replicates:
3 (female)
Details on study design:
REMOVAL OF TEST SUBSTANCE
- Washing (if done): yes with isotonic solution
- Time after start of exposure: 1 h

SCORING SYSTEM: according to OECD TG 405, reading at 1, 24, 48 and 72 h after removal of test item

TOOL USED TO ASSESS SCORE: occular examination
Irritation parameter:
conjunctivae score
Remarks:
redness
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
3
Reversibility:
other: reversibility not relevant since no effects
Remarks on result:
no indication of irritation
Irritation parameter:
conjunctivae score
Remarks:
redness
Basis:
animal #2
Time point:
24/48/72 h
Score:
0.7
Max. score:
3
Reversibility:
fully reversible within: 72 h
Remarks on result:
no indication of irritation
Irritation parameter:
conjunctivae score
Remarks:
redness
Basis:
animal #3
Time point:
24/48/72 h
Score:
0.7
Max. score:
3
Reversibility:
fully reversible within: 72 h
Remarks on result:
no indication of irritation
Irritation parameter:
cornea opacity score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
4
Reversibility:
other: reversibility not relevant since no effect
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
Reversibility:
other: reversibility not relevant since no effects
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
Reversibility:
other: reversibility not relevant since no effect
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
Reversibility:
other: reversibility not relevant since no effect
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
Reversibility:
other: reversibility not relevant since no effect
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
Reversibility:
other: reversibility not relevant since no effect
Remarks on result:
no indication of irritation
Irritation parameter:
chemosis score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
4
Reversibility:
other: reversibility not relevant since no effect
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
Reversibility:
other: reversibility not relevant since no effect
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
Reversibility:
other: reversibility not relevant since no effect
Remarks on result:
no indication of irritation
Irritant / corrosive response data:
Slight reddening of the conjunctivae was noted in the three animals 1 h after treatment and persisted up to 48 h in two animals.
1 h reading: slight swelling (chemosis) in 1 animal, slight occular discharges in all treated animals
24 h and 48 h reading: slight conjunctivae redness in 2 animals.
72 h reading: no abnormal findings observed in any animal.

No coloration of the treated eyes was noted at any of the reading times.
Other effects:
- changes in body weight during the course of the study were not remarkable.
Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
The test item is not irritating to eyes when tested under the conditions of the OECD guideline 405.
Executive summary:

The primary eye irritation potential of the test item was investigated according to OECD guideline no 405. The test item (0.1 g) was applied to the intact eye of three New Zealand White rabbits for 1 h. Redding of the conjunctivae was noted in all three animals 1 h after the tratment and persisited up to 48 h in two animals. Slight swelling was noted in one and slight occular discharge was noted in two animals in the 1 h reading.

The individual mean scores calculated across the three scoring times (24, 48, 72 h) were for corneal opacity 0.0 (three animals), for iris 0.0 (three animals), for conjunctivae redding 0.0, 0.7 and 0.7 and for chemosis 0.0 (three animals).

No abnormal findings were observed in the treated eye of any animal 72 h after treatment.

There was no indication of systemic toxicity.

Endpoint conclusion
Endpoint conclusion:
no adverse effect observed (not irritating)

Respiratory irritation

Endpoint conclusion
Endpoint conclusion:
no study available

Additional information

Justification for classification or non-classification

No classification, as no adverse effects observed.