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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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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:
5.5.2009 - 15.5.2009
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2009
Report date:
2009

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
Deviations:
no
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)
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
[(2S,3R,5S)-3-acetoxy-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-2-yl]methyl acetate
EC Number:
610-122-1
Cas Number:
433733-94-9
Molecular formula:
C14H18N2O7
IUPAC Name:
[(2S,3R,5S)-3-acetoxy-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-2-yl]methyl acetate

Test animals

Species:
rabbit
Strain:
New Zealand White
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Harlan France SARL, France
- Age at study initiation: at least 7 - 10 weeks
- Weight at study initiation: at least 1525 - 1751 g
- Housing: Animals were housed individually in cages with perforated floors and shelter.
- Diet: SSNIFF K-H pelleted diet for rabbits, approximately 100 g/d
- Water: tap water, ad libitum
- Acclimation period: at least 5 d

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 21.4 - 23.2
- Humidity (%): 26 - 72
- Air changes (per hr): 15
- Photoperiod (hrs dark / hrs light): 12/12

IN-LIFE DATES:
From: 5.5.2009
To: 8.5.2009
From: 12.5.2009
To: 15.5.2009

Test system

Type of coverage:
semiocclusive
Preparation of test site:
clipped
Vehicle:
water
Controls:
other: Not required, the untreated skin of each animal served as control.
Amount / concentration applied:
TEST MATERIAL
- Amount applied (volume or weight with unit): 0.5 g test substance moistened with 0.5 mL water
Duration of treatment / exposure:
4 h
Observation period:
72 h
reading time points: 1, 24, 48 and 72 h
Number of animals:
3
Details on study design:
TEST SITE
- Type of wrap if used: The test substance was applied on one flank and covered with a metalline patch and Micropore tape. The dressing was held in place with Coban elastic bandage.

REMOVAL OF TEST SUBSTANCE
- Washing (if done): The skin was cleaned using tap water.
- Time after start of exposure: 4 h

SCORING SYSTEM: Draize scoring system

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:
4
Remarks on result:
no indication of irritation
Irritation parameter:
erythema score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
erythema score
Basis:
animal #3
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
edema score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
edema score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
edema score
Basis:
animal #3
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritant / corrosive response data:
No skin irritation was caused by 4 hours exposure to the test substance. There was no evidence of a corrosive effect on the skin.
Other effects:
No staining of the treated skin by the test substance was observed and no test substance remnants were seen. No symptoms of systemic toxicity were observed in the animals during the test period and no mortality occurred.

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
No skin irritation was caused by 4 hours exposure to LDT600 C3.
CLP: not classified