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Diss Factsheets

Administrative data

Description of key information

In vivo skin irritiation study (OECD TG 404, GLP) in rabbits: slight transient irritation
In vivo eye irritation study (OECD TG 405, GLP) in rabbits: slight transient irritation.

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:
7 february 2003 to 20 June 2003
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
Version / remarks:
(1992)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion)
Version / remarks:
(1992)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 870.2500 (Acute Dermal Irritation)
Version / remarks:
(1998)
Deviations:
no
GLP compliance:
yes
Species:
rabbit
Strain:
New Zealand White
Type of coverage:
occlusive
Preparation of test site:
shaved
Vehicle:
unchanged (no vehicle)
Controls:
not required
Amount / concentration applied:
0.5 ml
Duration of treatment / exposure:
4 hours
Observation period:
7 days
Number of animals:
3
Irritation parameter:
erythema score
Remarks:
mean score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
erythema score
Remarks:
Mean score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0.5
Max. score:
4
Reversibility:
fully reversible within: 7 days
Irritation parameter:
erythema score
Basis:
animal #3
Time point:
24/48/72 h
Score:
0
Max. score:
4
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
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
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
Remarks on result:
no indication of irritation

There were no signs of ill-health in any animal during the study. The application site of one animal was stained by the test substance but this did not prevent the assessment of irritation.

There were no signs of irritation in one animal.

In two animals, very slight erythema and very slight oedema were seen approximately 1 hour after decontamination. very slight erythema was also seen in one of these animals 2 days after application. Additional signs of irritation consisted of desquamation in one animal and erythema beyond the application area of the other animal. All signs of irritation had completely resolved within 7 days of application.

Interpretation of results:
GHS criteria not met
Conclusions:
1,2,3,4-tetrachloro-hexafluorobutane is a slight irritant following a single four-hour application to rabbit skin.
Executive summary:

The purpose of this study was to assess the skin irritation potential of 1,2,3,4-tetrachloro-hexafluorobutane to rabbit, when administered by dermal application.


Three female rabbits each received a single four-hour application of 0.5 ml of 1,2,3,4-tetrachloro-hexafluorobutane to the shorn flank. The animals were assessed for up to 7 days for any signs of skin irritation.


There were no signs of irritation in one animal.


In two animals, very slight erythema and very slight oedema were seen approximately 1 hour after decontamination. Very slight erythema was also seen in one of these animals 2 days after application. Additional signs of irritation consisted of desquamation in one animal and erythema beyond the application area of the other animal. All signs of irritation had completely resolved within 7 days of application.


1,2,3,4-tetrachloro-hexafluorobutane is a slight irritant following a single four-hour application to rabbit skin.

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:
22 January 2003 to 19 June 2003
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
Version / remarks:
(1987)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion)
Version / remarks:
(1992)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 870.2400 (Acute Eye Irritation)
Version / remarks:
(1998)
Deviations:
no
GLP compliance:
yes
Species:
rabbit
Strain:
New Zealand White
Details on test animals or tissues and environmental conditions:
TEST ANIMALS
- Source: Charles River UK Ltd, Margate, Kent, UK
- Age at study initiation: no data (young adults), 3 females
- Weight at study initiation: 2236 - 3022 g
- Housing: individual
- Diet: ad libitum
- Water: ad libitum
- Acclimation period: 5 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 18 +/- 3°C
- Humidity (%): 30-70%
- Air changes (per hr): minimum 15 ACH
- Photoperiod (hrs dark / hrs light): 12 h light, 12 hrs dark

IN-LIFE DATES: From: 29-JAN-2003 To: 14-FEB-2003
Vehicle:
unchanged (no vehicle)
Controls:
yes, concurrent no treatment
Amount / concentration applied:
0.1 ml
Duration of treatment / exposure:
The test substance (0.1 ml) was instillated once, on day 1.
Observation period (in vivo):
3 days
Number of animals or in vitro replicates:
3
Details on study design:
REMOVAL OF TEST SUBSTANCE
- Washing (if done): no

SCORING SYSTEM: Draize scale

TOOL USED TO ASSESS SCORE: fluorescein
Irritation parameter:
cornea opacity score
Basis:
animal #1
Remarks:
mean score
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
Remarks:
mean score
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
Remarks:
3 animals
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
cornea opacity score
Basis:
mean
Remarks:
3 animals
Time point:
other: 1 hour
Score:
0
Max. score:
4
Irritation parameter:
iris score
Basis:
mean
Remarks:
3 animals
Time point:
other: 1 hour
Score:
0
Max. score:
2
Remarks on result:
no indication of irritation
Irritation parameter:
iris score
Basis:
animal #1
Remarks:
mean score
Time point:
24/48/72 h
Score:
0
Max. score:
2
Remarks on result:
no indication of irritation
Irritation parameter:
iris score
Basis:
animal #2
Remarks:
mean score
Time point:
24/48/72 h
Score:
0
Max. score:
2
Remarks on result:
no indication of irritation
Irritation parameter:
iris score
Basis:
animal #3
Remarks:
mean score
Time point:
24/48/72 h
Score:
0
Max. score:
2
Remarks on result:
no indication of irritation
Irritation parameter:
conjunctivae score
Basis:
animal #1
Time point:
other: 1 hour
Score:
1
Max. score:
3
Reversibility:
fully reversible within: 1 day
Irritation parameter:
conjunctivae score
Basis:
animal #1
Remarks:
mean score
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
Remarks:
mean score
Time point:
24/48/72 h
Score:
0
Max. score:
3
Remarks on result:
no indication of irritation
Irritation parameter:
conjunctivae score
Basis:
animal #3
Remarks:
mean score
Time point:
24/48/72 h
Score:
0.33
Max. score:
3
Reversibility:
fully reversible within: 2 days
Irritation parameter:
chemosis score
Basis:
animal #1
Remarks:
mean score
Time point:
other: 1 hour
Score:
1
Max. score:
4
Reversibility:
fully reversible within: 24 hours
Irritation parameter:
chemosis score
Basis:
animal #2
Time point:
other: 1.2 hour
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
chemosis score
Basis:
animal #3
Time point:
other: 1.2 hour
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
chemosis score
Basis:
animal #1
Remarks:
mean score
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
Remarks:
mean score
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
Remarks:
mean score
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
maximum mean total score (MMTS)
Basis:
mean
Remarks:
3 animals
Time point:
other: 1 hour
Score:
1.3
Max. score:
110
Reversibility:
fully reversible
Irritation parameter:
maximum mean total score (MMTS)
Basis:
mean
Remarks:
3 animals
Time point:
24 h
Score:
0.7
Max. score:
110
Reversibility:
fully reversible
Irritation parameter:
maximum mean total score (MMTS)
Basis:
mean
Remarks:
3 animals
Time point:
48 h
Score:
0
Max. score:
110
Irritation parameter:
maximum mean total score (MMTS)
Basis:
mean
Remarks:
3 animals
Time point:
72 h
Score:
0
Max. score:
110

There were no signs of ill-health in any naimal during the study. Instillation into the eye caused practically no initial pain (class 1 on a 0 -5 scale). There were no corneal or iridial effects. Conjunctival effects consisted of slight redness in two animals for up to 1 day and slight chemosis in one animal approximately 1 hour after instillation only. There were no additional signs of irritation.

Interpretation of results:
GHS criteria not met
Conclusions:
1,2,3,4-tetrachloro-hexafluorobutane is not an eye irritant.
Executive summary:

The purpose of the study was to assess the eye irritation potential of 1,2,3,4-tetrachloro-hexafluorobutanet o rabbits.


The study was conducted in accordance with guidelines OECD 405 (1987), EU method B.5 (1992) and EPA OPPTS 870.2400 (1998).


A volume of 0.1 ml of 1,2,3,4-tetrachloro-hexafluorobutane was instilled into one eye of each of three rabbits and an assessment of initial pain was made.


The eyes were examined for 3 days, to assess the grade of ocular reaction.


There were no signs of ill-health in any animal during the study. Instillation into the eye caused practically no initial pain (class 1 on a 0 -5 scale). There were no corneal or iridial effects. Conjunctival effects consisted of slight redness in two animals clearing within 24 hours and slight chemosis in one animal approximately 1 hour after instillation only. There were no additional signs of irritation.


1,2,3,4-tetrachloro-hexafluorobutane is not classified as an eye irritant according to GHS criteria.

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

Respiratory irritation

Endpoint conclusion
Endpoint conclusion:
no study available

Additional information

An in vivo study, performed in order to assess the skin irritation potential of 1,2,3,4-tetrachloro-hexafluorobutane to rabbit when administered by dermal application, is reported. The substance is a slight irritant following a single four-hour application to rabbit skin. Effects were fully cleared at the 24-hour observation.


 


An in vivo study, performed in order to assess the eye irritation potential of 1,2,3,4-tetrachloro-hexafluorobutane to rabbits, is reported.


The substance is practically non-irritant to the rabbit eye.

Justification for classification or non-classification

According to Regulation EC No. 1272/2008, the substance does not meet the classification criteria for human health for skin and eye irritation.