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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:
April 1999
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1999
Report date:
1999

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)
Deviations:
no
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Diethyl succinate
EC Number:
204-612-0
EC Name:
Diethyl succinate
Cas Number:
123-25-1
Molecular formula:
C8H14O4
IUPAC Name:
1,4-diethyl butanedioate
Test material form:
liquid
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Lot/batch No.of test material: EMLS 201
- Expiration date of the lot/batch: June 1999
- Purity: >= 99%

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Refrigerated, in the dark

TREATMENT OF TEST MATERIAL PRIOR TO TESTING
- Treatment of test material prior to testing: None

FORM AS APPLIED IN THE TEST
- As supplied

Test animals

Species:
rabbit
Strain:
New Zealand White
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: J. Schitkovits, A-2620 Natschbach
- Weight at study initiation: 2.6 - 3.1 kg
- Housing: Individually caged in metal wire cages
- Diet: Altromin 2023, ad libitum
- Water: Municipal tap water, ad libitum
- Acclimation period: 11 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): Avergae 20 deg C
- Humidity (%): Average 54%
- Air changes (per hr): 12
- Photoperiod (hrs dark / hrs light): 12/12

IN-LIFE DATES: From: 1999-04-27 To: 1999-04-30

Test system

Type of coverage:
semiocclusive
Preparation of test site:
clipped
Vehicle:
unchanged (no vehicle)
Controls:
yes, concurrent no treatment
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.5 mL
- Concentration (if solution): Undiluted (100%)

Duration of treatment / exposure:
4 hours
Observation period:
72 hours
Number of animals:
3
Details on study design:
TEST SITE
- Area of exposure: 2.5 x 2.5 cm
- Type of wrap if used: Cellulose patches held in place by non-irritating tape

REMOVAL OF TEST SUBSTANCE
- Washing (if done): Treated sites cleansed with wet Kleenex tissues
- Time after start of exposure: 4 hours

OBSERVATION TIME POINTS
- 1, 24, 48 and 72 hours after patch removal

SCORING SYSTEM:
- Draize scale

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
mean
Time point:
24/48/72 h
Score:
0
Max. score:
0
Irritation parameter:
edema score
Basis:
mean
Time point:
24/48/72 h
Score:
0
Max. score:
0
Irritant / corrosive response data:
No irritant response observed in any animal at any time point

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
Diethyl succinate was found not to be a skin irritant on in-vivo testing
Executive summary:

Skin irritaion has been assessed in-vivo following OECD/EU test methods. Diethyl succinate elicited no response following exposure and is regarded as being non-irritant to the skin.