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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:
27 February 2007 to 24 March 2007
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2007
Report date:
2007

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
Qualifier:
according to guideline
Guideline:
EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion)
Qualifier:
according to guideline
Guideline:
EPA OPPTS 870.2500 (Acute Dermal Irritation)
Qualifier:
according to guideline
Guideline:
other: JMAFF
Version / remarks:
12 Nousan, Notification No 8147, November 2000, including the most recent partial revisions
GLP compliance:
yes

Test material

1
Chemical structure
Reference substance name:
-
EC Number:
473-370-8
EC Name:
-
Cas Number:
13304-62-6
Molecular formula:
C10 H11 N O
IUPAC Name:
N-benzylprop-2-enamide

Test animals

Species:
rabbit
Strain:
New Zealand White
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Harlan, Horst, The Netherlands
- Strain: Albino rabbit, New-Zealand White (SPF quality)
- Age at study initiation: at least 6weeks
- Weight at study initiation: 1450-1907 g
- Housing: individually in cages with perforated floors (Scanburg, Danmark)
- Diet: Pelleted rabbit diet ad libitum (K-H, SSNIFF, Soest, Germany)
- Acclimation period: at least 5 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 21.0-22.5 ˚C
- Humidity (%): 40-58%
- Air changes (per hr): ca 15/h
- Photoperiod (hrs dark / hrs light): 12/12

Test system

Type of coverage:
semiocclusive
Preparation of test site:
clipped
Vehicle:
water
Controls:
not required
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied: 0,5 g moistened with 0.7 mL water

Duration of treatment / exposure:
4 hours
Observation period:
at 1, 24, 48 and 72 hours after removal of the dressing
Number of animals:
3 males
Details on study design:
TEST SITE
- Area of exposure: 2x3 cm
- % coverage: 10%
- Type of wrap if used: semi-occlusive (mettaline patch mounted with micropore tape)

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

OBSERVATION TIME POINTS : at 1, 24, 48 and 72 hours after removalof the dressing

SCORING SYSTEM: Draize

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
animal #1
Time point:
other: 1 hour
Score:
0
Max. score:
0
Irritation parameter:
erythema score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
0
Irritation parameter:
edema score
Basis:
animal #1
Time point:
other: 1 hour
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:
erythema score
Basis:
animal #2
Time point:
other: 1 hour
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:
edema score
Basis:
animal #2
Time point:
other: i hour
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:
erythema score
Basis:
animal #3
Time point:
other: 1 hour
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 #3
Time point:
other: 1 hour
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 irritant or corrosive effects observed
Other effects:
No effects on bodyweight gain. No toxic effects.

Any other information on results incl. tables

Animal no 1 2 3
1 24 48 72 1 24 48 72 1 24 48 72
erythema 0 0 0 0 0 0 0 0 0 0 0 0
oedema 0 0 0 0 0 0 0 0 0 0 0 0

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The substance is not irritating or corrosive to the skin
Executive summary:

In an in vivo test according to OECD 404, the skin of 3 male New Zealand White rabbits was exposed to 0.5 g of the substance under semi-occlusion during 4 hours. No signs of irritation (erythema and oedema) were observed at 1, 24, 48 and 72 hours after removal of the dressing. Therefore it is concluded that the substance is not irritating or corrosive to the skin.