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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
1997-07-15 to 1997-07-18
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: GLP and guideline compliant study report

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1997
Report date:
1997

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EPA OPP 81-5 (Acute Dermal Irritation)
Deviations:
no
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
2'-hydroxyacetophenone
EC Number:
204-288-0
EC Name:
2'-hydroxyacetophenone
Cas Number:
118-93-4
Molecular formula:
C8H8O2
IUPAC Name:
1-(2-hydroxyphenyl)ethan-1-one
Details on test material:
Name of the test substance used in the study report: o-Hydroxyacetophenon

Test animals

Species:
rabbit
Strain:
New Zealand White
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Harlan Interfauna Ltd., Huntingdon, Cambridgeshire. England, UK
- Age at study initiation: 10 - 12 wks
- Weight at study initiation: 2.2 - 2.7 kg
- Housing: individually in metal cages
- Diet: ad libitum, standard diet (SDS Stanrab /P) SQC Rabbit Diet)
- Water: ad libitum, tap water
- Acclimation period: yes

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 16.5 - 21.5
- Humidity (%): 60 - 74
- Air changes (per hr): 19
- Photoperiod (hrs dark / hrs light): 12/12

Test system

Type of coverage:
semiocclusive
Preparation of test site:
clipped
Vehicle:
unchanged (no vehicle)
Controls:
other: untreated skin served as control
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied: 0.5 mL
Duration of treatment / exposure:
4 hours
Observation period:
4 days
Number of animals:
6
Details on study design:
TEST SITE
- Area of exposure: dorso lumbar region (6.25 mm²)
- Type of wrap if used: elastic adhesive dressing

REMOVAL OF TEST SUBSTANCE
- Washing (if done): with physiological saline
- Time after start of exposure: 4 hours

SCORING SYSTEM: Draize et al. (1959)

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
mean
Time point:
other: 24, 48, 72 hours
Score:
0
Max. score:
4
Irritation parameter:
edema score
Basis:
mean
Time point:
other: 24, 48, 72 hours
Score:
0
Max. score:
4
Irritant / corrosive response data:
No dermal reaction to treatment was observed in any animal throughout the study period.
Other effects:
There were no signs of toxicity observed in any rabbit during the observation period.

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information