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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
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1986
Report date:
1986

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Zinc bis[O,O-bis(2-ethylhexyl)] bis(dithiophosphate)
EC Number:
224-235-5
EC Name:
Zinc bis[O,O-bis(2-ethylhexyl)] bis(dithiophosphate)
Cas Number:
4259-15-8
Molecular formula:
Too complex
IUPAC Name:
1-Hexanol, 2-ethyl-, O,O-diester with phosphorodithioic acid, zinc salt

Test animals

Species:
rabbit
Strain:
New Zealand White
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source:
- Age at study initiation: 10-15 weeks
- Weight at study initiation:
- Housing: Housed individually in wire-bottom cages
- Diet (e.g. ad libitum): rationed
- Water (e.g. ad libitum): ad libitum
- Acclimation period: 15-36 days


ENVIRONMENTAL CONDITIONS
- Temperature (°C): 17.8-22.2
- Humidity (%): 31-74%
- Air changes (per hr):
- Photoperiod (hrs dark / hrs light): 12 hours


IN-LIFE DATES: From: To:

Test system

Type of coverage:
semiocclusive
Preparation of test site:
shaved
Vehicle:
unchanged (no vehicle)
Controls:
no
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.5 ml
- Concentration (if solution):


VEHICLE
- Amount(s) applied (volume or weight with unit):
- Concentration (if solution):
- Lot/batch no. (if required):
- Purity:
Duration of treatment / exposure:
4 hours
Number of animals:
12
Details on study design:
TEST SITE
- Area of exposure:
- % coverage:
- Type of wrap if used: gauze wrapped in plastic sheet


REMOVAL OF TEST SUBSTANCE
- Washing (if done): wiped with gauze pads moistened with mineral oil followed by a dry gauze pad
- Time after start of exposure: 4 hours


SCORING SYSTEM: Draize

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
mean
Time point:
other: 24-72 hours
Score:
1
Irritation parameter:
edema score
Basis:
mean
Time point:
other: 24-72 hours
Score:
0.22

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: OECD GHS
Conclusions:
Phosphorodithioic acid, O,O-bis(2-ethylhexyl) ester, zinc salt is not a primary skin irritant.