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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:
December 1981
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study conducted according to internationally accepted testing guidelines, not GLP

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1982
Report date:
1982

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium 2-formylbenzenesulphonate
EC Number:
213-758-4
EC Name:
Sodium 2-formylbenzenesulphonate
Cas Number:
1008-72-6
Molecular formula:
C7H5NaO4S
IUPAC Name:
Sodium 2-formylbenzenesulfonate
Test material form:
solid

Test animals

Species:
rabbit
Strain:
New Zealand White
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: HC: NZW, Fa. Hacking & Churchill ltd., Huntingdon, UK
- Weight at study initiation: average weight for each animal: about 3 kg.
- Housing: in air-conditions room in individual cages
- Diet: ad libitum
- Water: ad libitum (drinking water)

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 19-21 °C
- Humidity (%): 40-50 %
- Photoperiod (hrs dark / hrs light): The light/dark cycle was 12 hours per day (artificial light from 7 till 19 h).


Test system

Type of coverage:
not specified
Preparation of test site:
clipped
Vehicle:
other: water
Controls:
yes, concurrent no treatment
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied: 0.5 g of the test material dissolved in water



Duration of treatment / exposure:
Substance was applied for 4h with a dressing then dressing was removed and the treated zone was washed with water.
Observation period:
7 days. The effects were recorded after 1h, 24h, 48h and till 7 days after treatment.
Number of animals:
3 albino rabbits
Details on study design:
TEST SITE
- Area of exposure: 6 X 6 cm (one flank)
- % coverage: 2.5 x 2.5 cm (gauze)

REMOVAL OF TEST SUBSTANCE
- Washing (if done): after 4 h of exposure

OBSERVATION TIME POINTS
(indicate if minutes, hours or days): observation after 1, 24, 48, 72 h and then after 7 days.

SCORING SYSTEM:
- Method of calculation: DRAIZE, J.H.; The Apptaisal of Chemicals in Foods, Drugs, and Cosmetics, pp. 46 - 48. Association of Food and Drug Officials of the United States, Austin, Texas 1959). Ref. OECD Guideline No. 404.

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
other: animal 13
Time point:
24/48/72 h
Score:
ca. 0
Max. score:
4
Reversibility:
fully reversible
Irritation parameter:
erythema score
Basis:
other: animal 14
Time point:
24/48/72 h
Score:
ca. 0
Max. score:
4
Reversibility:
fully reversible
Irritation parameter:
erythema score
Basis:
other: animal 15
Time point:
24/48/72 h
Score:
ca. 0
Max. score:
4
Reversibility:
fully reversible
Irritation parameter:
edema score
Basis:
other: animal 13
Time point:
24/48/72 h
Score:
ca. 0
Max. score:
4
Reversibility:
fully reversible
Irritation parameter:
edema score
Basis:
other: animal 14
Time point:
24/48/72 h
Score:
ca. 0
Max. score:
4
Reversibility:
fully reversible
Irritation parameter:
edema score
Basis:
other: animal 15
Time point:
24/48/72 h
Score:
ca. 0
Max. score:
4
Reversibility:
fully reversible
Irritant / corrosive response data:
The observation after 24h, 48h, 72h and 7 days showed no sign of erythema or edema for none of the three rabbits.

Applicant's summary and conclusion

Interpretation of results:
other: not skin irritant according to the CLP Regulation (EC n.1272/2008)
Conclusions:
The substance is not skin irritating according to the CLP Regulation (EC n. 1272/2008).
Executive summary:

The substance has been tested for skin irritation on three albino rabbits.

The study was conducted according to the OECD Guideline N. 404. The exposure time of the substance was 4 hours. The observation after 24h, 48h, 72h and 7 days showed no sign of erythema or edema for none of the three rabbits. The substance is not skin irritating according to the CLP Regulation (EC n. 1272/2008).