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Diss Factsheets

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)
Rationale for reliability incl. deficiencies:
comparable to guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1979
Report date:
1979

Materials and methods

Test guidelineopen allclose all
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
Qualifier:
according to guideline
Guideline:
other: Proposed Guidelines of the United States Environmental Agency (EPA) § 163.81- 5 "Primary dermal irritation study". Federal Register, Vol. 43, No. 163, August 22, 1978
GLP compliance:
no
Remarks:
Study pre-dates GLP regulations

Test material

Constituent 1
Reference substance name:
Aluminum, hydroxy[29H,31H-phthalocyaninato(2-)-N29,N30,N31,N32]-, chloro sulfo derivs., sodium salts
EC Number:
307-259-1
EC Name:
Aluminum, hydroxy[29H,31H-phthalocyaninato(2-)-N29,N30,N31,N32]-, chloro sulfo derivs., sodium salts
Cas Number:
97592-62-6
Molecular formula:
not available
IUPAC Name:
Aluminum, hydroxy[29H,31H-phthalocyaninato(2-)-N29,N30,N31,N32]-, chloro sulfo derivs., sodium salts
Test material form:
solid
Specific details on test material used for the study:
- Name as used in the study report: FAT 60149/A.
- Batch No.: Versuch 124 - 4 + 5

Test animals

Species:
rabbit
Strain:
New Zealand White
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: IVANOVAS, 7964 Kisslegg/Allgaü, Germany and MADOERIN AG, 4414 Füllinsdorf, Switzerland
- Age at study initiation: adult
- Weight at study initiation: 2 to 3 kg
- Housing: individual in metal cages
- Diet: ad libitum standard rabbit food - NAFAG, No. 814, Gossau SG
- Water: ad libitum
- Acclimation period: at least 4 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 22 ± 2
- Humidity (%): 55 ± 10
- Photoperiod (hrs dark / hrs light): 10/14

Test system

Type of coverage:
occlusive
Preparation of test site:
shaved
Vehicle:
other: Propylene glycol + saline (70:30 parts)
Controls:
no
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied: 0.5 g
- Concentration: 50%
Duration of treatment / exposure:
24 hours
Observation period:
7 days
Number of animals:
6 (3 male, 3 female)
Details on study design:
TEST SITE
- Area of exposure: Before treatment the entire back and the flank of the rabbits were shaved with an electric clipper and immediately before treatment the shaven skin on one side was slightly scarified with the help of a "Schropfschnapper", Aesculap, Switzerland.
- Gauze patches of 2.5 x 2.5 cm with 0.5 g of the test material were applied to the prepared abraded and intact skin.
- Type of wrap if used: The patches were covered with an impermeable material and were fastened to the body of the rabbit with adhesive tape.

REMOVAL OF TEST SUBSTANCE
- The dressings were removed after a 24 hour application.

OBSERVATION TIME POINTS
- 24, 48 and 72 hours, 4 and 7 days

SCORING SYSTEM
- Due to intensive staining by the test compound erythema was not assessable. For the purpose of calculating the primary irritation index erythema was assumed to be equal to edema based on the correlation existing (Marzulli and Maibach, Fol. Cosm. Tox. 13, 355, 1975).
- Edema formation was scored on a four point scale (Draize).

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
edema score
Basis:
animal: #1, #2, #3, #4, #6
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
other: intact skin
Irritation parameter:
edema score
Basis:
animal #5
Time point:
24/48/72 h
Score:
0.3
Max. score:
4
Reversibility:
fully reversible within: 48 hours
Remarks on result:
other: intact skin
Irritation parameter:
erythema score
Basis:
animal: #1, #2, #3, #4, #6
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
other: intact skin
Irritation parameter:
erythema score
Basis:
animal #5
Time point:
24/48/72 h
Score:
0.3
Max. score:
4
Reversibility:
fully reversible within: 48 hours
Remarks on result:
other: intact skin

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met