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Toxicological information

Skin irritation / corrosion

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Administrative data

Endpoint:
skin irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1970
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Basic data given: comparable to guidelines/standards

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1970
Report date:
1970

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
Deviations:
yes
Remarks:
exposure times are 5 and 15 min and 20 hours
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
2-nitrophenol
EC Number:
201-857-5
EC Name:
2-nitrophenol
Cas Number:
88-75-5
Molecular formula:
C6H5NO3
IUPAC Name:
2-nitrophenol
Details on test material:
- Name of test material (as cited in study report): o- nitrophenol
- Physical state: solid
no further detail provided

Test animals

Species:
rabbit
Strain:
Vienna White

Test system

Type of coverage:
occlusive
Preparation of test site:
shaved
Vehicle:
water
Controls:
other:
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): no data
- Concentration (if solution): 80% aqueous suspension

Duration of treatment / exposure:
1, 5 and 15 min, 20 hours
Observation period:
24 hours and 8 days
Number of animals:
2
Details on study design:
TEST SITE
- Area of exposure: back and ear

REMOVAL OF TEST SUBSTANCE
- Washing (if done): with Lutrol
- Time after start of exposure: 1, 5, 15 min or 20 hour, respecitvely

SCORING SYSTEM: Draize (re-evaluated according to the scoring system of Draize, as recommended by the actual guideline requirements.

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
mean
Time point:
other: 24 h
Score:
0
Max. score:
4
Remarks on result:
other: after 5 min exposure of the back
Irritation parameter:
erythema score
Basis:
mean
Time point:
other: 24 h
Score:
1
Max. score:
4
Reversibility:
fully reversible
Remarks on result:
other: after 15 min exposure of the back
Irritation parameter:
edema score
Basis:
mean
Time point:
other: 24
Score:
0
Max. score:
4
Remarks on result:
other: after 15 min exposure of the back
Irritation parameter:
erythema score
Basis:
mean
Time point:
other: 24 h
Score:
1
Max. score:
4
Reversibility:
not fully reversible within: 8 days
Remarks on result:
other: after 20 hours exposure of the back
Irritation parameter:
edema score
Basis:
mean
Time point:
other: 24 h
Score:
1
Max. score:
4
Reversibility:
fully reversible
Remarks on result:
other: after 20 hour exposure of the back
Other effects:
After 20 hour exposure a scaling is seen after 8 days.
After all exposure times yellow substance leftovers are seen after 24 hours.

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information