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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Description of key information

An in vivo eye irritation study to rabbit performed on 1,2-dichloro-1,2-difluoroethylene is reported.
According to Regulation EC No. 1272/2008, the substance does not meet the classification criteria for eye irritation.

Key value for chemical safety assessment

Skin irritation / corrosion

Endpoint conclusion
Endpoint conclusion:
no study available

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:
4 August 1987 to 7 August 1987
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
GLP compliance:
yes
Specific details on test material used for the study:
At the time of study, the test material was described as Ethene, 1,2-dichloro-1,2-difluoro.
As for registration purpose the full characterisation has established the substance is a mixture of 2 isomers (Z and E), it is now described as Reaction mass of (Z)-1,2-dichloro-1,2-difluoroethylene and (E)-1,2-dichloro-1,2-difluoroethylene.
Species:
rabbit
Strain:
New Zealand White
Vehicle:
unchanged (no vehicle)
Controls:
not required
Amount / concentration applied:
0.1 ml
Duration of treatment / exposure:
single instillation.
Observation period (in vivo):
at 1, 24, 48, 72 hours after instillation.
Number of animals or in vitro replicates:
3 (1 male and 2 females)
Details on study design:
REMOVAL OF TEST SUBSTANCE: No
- Washing : no

SCORING SYSTEM: Draize scale

TOOL USED TO ASSESS SCORE: hand-slit lamp (standard illumination)
Irritation parameter:
cornea opacity score
Basis:
mean
Remarks:
all 3 animals
Time point:
other: 1 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
cornea opacity score
Basis:
animal #1
Remarks:
Mean
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
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:
Mean
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
iris score
Basis:
mean
Remarks:
All 3 animals
Time point:
other: 1 h
Score:
0
Max. score:
2
Remarks on result:
no indication of irritation
Irritation parameter:
iris score
Basis:
animal #1
Remarks:
Mean
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
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
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:
mean
Remarks:
All 3 animals
Time point:
other: 1 h
Score:
1
Max. score:
3
Reversibility:
fully reversible within: 24 h
Irritation parameter:
conjunctivae score
Basis:
animal #1
Remarks:
Mean
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
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
Time point:
24/48/72 h
Score:
0
Max. score:
3
Remarks on result:
no indication of irritation
Irritation parameter:
chemosis score
Basis:
mean
Remarks:
all 3 animals
Time point:
other: 1 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
chemosis score
Basis:
animal #1
Remarks:
Mean
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
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
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
other: Discharge
Basis:
mean
Remarks:
all 3 animals
Time point:
other: 1 h
Score:
0
Max. score:
3
Remarks on result:
no indication of irritation
Irritation parameter:
other: Discharge
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
3
Remarks on result:
no indication of irritation
Irritation parameter:
other: Discharge
Basis:
animal #2
Time point:
24/48/72 h
Score:
0
Max. score:
3
Remarks on result:
no indication of irritation
Irritation parameter:
other: Discharge
Basis:
animal #3
Time point:
24/48/72 h
Score:
0
Max. score:
3
Remarks on result:
no indication of irritation
Interpretation of results:
GHS criteria not met
Conclusions:
Ethene,1,2 -dichloro-1,2 -difluoro is pratically non-irritant to rabbit eyes.
Executive summary:

The eye irritation potential of Ethene,1,2-dichloro-1,2-difluoro was investigated in rabbits, meeting OECD guidelines.

No corneal or iridial responses were noted.

Slight conjunctival redness was noted in all treated eyes 1 h post instillation. All eyes had returned to normal at 24h post instillation.

Ethene,1,2 -dichloro-1,2 -difluoro is pratically non-irritant to rabbit eyes.

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

Respiratory irritation

Endpoint conclusion
Endpoint conclusion:
no study available

Additional information

An in vivo eye irritation study to rabbit performed on 1,2-dichloro-1,2-difluoroethylene is reported. According to test results, ethene,1,2 -dichloro-1,2 -difluoro is practically non-irritant to rabbit eyes.

Justification for classification or non-classification

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