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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
skin irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2002

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
4-[2-[4-(2-benzoxazoleyl)phenyl]vinyl]benzoic acid
EC Number:
225-303-7
EC Name:
4-[2-[4-(2-benzoxazoleyl)phenyl]vinyl]benzoic acid
Cas Number:
4763-79-5
Molecular formula:
C22H15NO3
IUPAC Name:
4-[2-[4-(2-benzoxazoleyl)phenyl]vinyl]benzoic acid
Test material form:
solid: particulate/powder
Details on test material:
sample no. 0808024164

Test animals

Species:
rabbit
Strain:
New Zealand White

Test system

Type of coverage:
semiocclusive
Vehicle:
water

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
0
Irritation parameter:
erythema score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0
Max. score:
0
Irritation parameter:
erythema score
Basis:
animal #3
Time point:
24/48/72 h
Score:
0
Max. score:
0
Irritation parameter:
edema score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
0
Irritation parameter:
edema score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0
Max. score:
0
Irritation parameter:
edema score
Basis:
animal #3
Time point:
24/48/72 h
Score:
0
Max. score:
0
Irritant / corrosive response data:
No abnormal findings after 24/46/72 hours (Erythema;Oedema,Flaking,Staining)
light yellow staining produced by the test item after 1 h

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
is considered to be "not irritating" to rabbit skin.
Executive summary:

The primary skin irritation potential of BENZoXAZoLSTILBENoARBoNSAEURE was

investigated by topical semi-occlusive application of 0.5 g to the intact left flank of each of

three young adult New Zealand White rabbits. The duration of treatment was four hours. The

scoring of skin reactions was performed 1, 24, 48 and 72 hours after removal of the

dressing.

The test item did not elicit any skin reactions at the application site of any animal at any of

the observation times (all scores 0). The individual mean score for erythema/eschar and

oedema for each of the three animals was therefore 0. A light yellow staining was however

observed at the test site of all animals but only at the 1-hour examination. No corrosive

effects were noted on the treated skin of any animal at any of the measuring intervals.

Thus, the test item did not induce significant or irreversible damage to the skin.

Based upon the referred classification criteria (Commission Directive 20O1l59lEC of

August06, 2001), BENZOXAZOLSTILBENCARBONSAEURE is considered to be "not

irritating" to rabbit skin.