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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint:
eye irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1996
Report date:
1996

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: 92/69/EEC
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
2,2,4-trimethyl-4-phenyl-butane-nitrile
EC Number:
422-580-8
EC Name:
2,2,4-trimethyl-4-phenyl-butane-nitrile
Cas Number:
75490-39-0
Molecular formula:
C13 H17 N
IUPAC Name:
2,2-dimethyl-4-phenylpentanenitrile
Details on test material:
Nature of substance: Liquid

Test animals / tissue source

Species:
other: Rabbit (New Zealand White)

Test system

Amount / concentration applied:
.1 ML
Number of animals or in vitro replicates:
3

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
conjunctivae score
Remarks:
(redness)
Basis:
animal #1
Remarks:
(mean score 1)
Time point:
other: overall at 24, 48 and 72 h
Score:
0.33
Max. score:
0
Reversibility:
fully reversible within: 4 days
Irritation parameter:
conjunctivae score
Remarks:
(redness)
Basis:
animal #2
Remarks:
(mean score 2)
Time point:
other: overall at 24, 48 and 72 h
Score:
1
Max. score:
0
Reversibility:
fully reversible within: 4 days
Irritation parameter:
conjunctivae score
Remarks:
(redness)
Basis:
animal #3
Remarks:
(mean score 3)
Time point:
other: overall at 24, 48 and 72 h
Score:
1
Max. score:
0
Reversibility:
fully reversible within: 4 days
Irritation parameter:
conjunctivae score
Remarks:
(redness)
Time point:
other: Not Applicable
Score:
0
Max. score:
2
Reversibility:
other: Not applicable
Remarks on result:
other: Max. duration: 96 h; Max. value at end of observation period: 0 (related to all animals)
Irritation parameter:
chemosis score
Basis:
animal #1
Remarks:
(mean score 1)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Max. score:
0
Reversibility:
fully reversible within: 4 days
Irritation parameter:
chemosis score
Basis:
animal #2
Remarks:
(mean score 2)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Max. score:
0
Reversibility:
fully reversible within: 4 days
Irritation parameter:
chemosis score
Basis:
animal #3
Remarks:
(mean score 3)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Max. score:
0
Reversibility:
fully reversible within: 4 days
Irritation parameter:
iris score
Time point:
other: Not Applicable
Score:
0
Max. score:
0
Reversibility:
other: Not Applicable
Remarks on result:
other: Max. duration: 0 h; Max. value at end of observation period: 0 (related to all animals)
Irritation parameter:
chemosis score
Time point:
other: Not Applicable
Score:
0
Max. score:
3
Reversibility:
other: Not Applicable
Remarks on result:
other: Max. duration: 24 h; Max. value at end of observation period: 0 (related to all animals)
Irritation parameter:
cornea opacity score
Basis:
animal #1
Remarks:
(mean score 1)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Max. score:
0
Reversibility:
not fully reversible within: 4 days
Irritation parameter:
cornea opacity score
Basis:
animal #2
Remarks:
(mean score 2)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Max. score:
0
Reversibility:
fully reversible within: 4 days
Irritation parameter:
cornea opacity score
Basis:
animal #3
Remarks:
(mean score 3)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Max. score:
0
Reversibility:
fully reversible within: 4 days
Irritation parameter:
cornea opacity score
Time point:
other: Not Applicable
Score:
0
Max. score:
0
Reversibility:
other: Not Applicable
Remarks on result:
other: Max. duration: 0 h; Max. value at end of observation period: 0 (related to all animals)
Irritation parameter:
iris score
Basis:
animal #1
Remarks:
(mean score 1)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Max. score:
0
Reversibility:
fully reversible within: 4 days
Irritation parameter:
iris score
Basis:
animal #2
Remarks:
(mean score 2)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Max. score:
0
Reversibility:
fully reversible within: 4 days
Irritation parameter:
iris score
Basis:
animal #3
Remarks:
(mean score 3)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Max. score:
0
Reversibility:
fully reversible within: 4 days
Irritant / corrosive response data:
Reversibility of any observed effect: Changes fully reversible within 4 days
Other effects:
A diffuse crimson red colouration of the conjunctivae was
seen in all three animals one hour after instillation,
accompanied by considerable swelling with partial eversion
of the eyelids or with the eyelids about half closed.

Applicant's summary and conclusion

Interpretation of results:
other: not classified