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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicological information

Skin irritation / corrosion

Currently viewing:

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