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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

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
Title:
Unnamed
Year:
1995

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
sodium 7-[(ethoxycarbonyl)amino]-4-hydroxynaphthalene-2-sulfonate
EC Number:
937-559-3
Cas Number:
1360085-10-4
Molecular formula:
C13H12NNaO6S
IUPAC Name:
sodium 7-[(ethoxycarbonyl)amino]-4-hydroxynaphthalene-2-sulfonate
Details on test material:
85.2 % active substance

Test animals

Species:
rabbit
Strain:
New Zealand White
Details on test animals or test system and environmental conditions:
1 male, 2 female

Results and discussion

In vivo

Results
Irritation parameter:
overall irritation score
Score:
ca. 0
Remarks on result:
other: see other information on resulat

Any other information on results incl. tables

The primary skin irritation potential of the test substance was investigated by topical

application of 0.5 g onto 6 cm2 intact dorsal skin of each of three young adult

New Zealand rabbits.

The scoring of skin reactions was performed 1, 24, 48 and 72 hours after removal of the dressing. The scores of each animal at the

following reading times (24, 48, 72 hours) was used in calculating the respective mean values for each type of lesion.

The primary irritation score was calculated by totalling the individual cumulative scores at 24, 48 and 72 hours and then divided by the number of figures. Under the conditions of this experiment, the test substance was found to cause a primary irritation score

of 0.00 (max. 8.0) when applied to healthy intact rabbit skin.

Local signs (mean values from 24 to 72 hours) consisted of grade 0.00 erythema and grade 0.00 edema.

Pale brown or beige staining of the treated skin by the test article was observed on the day of treatment. This finding persisted until the end of treatment in one animal only.

No corrosive effects were noted on the treated skin of any animal at any measuring interval.

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information
Conclusions:
No corrosive effects were noted on the treated skin of any animal at any measuring interval.
Executive summary:

not irritating