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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
1984-10-02 to 1984-10-05
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Complete guideline conform study report available. Study is performed under GLP.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1984
Report date:
1984

Materials and methods

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

Test material

Constituent 1
Chemical structure
Reference substance name:
Reaction mass of methyl N-octadecylterephthalamate and 37437-26-6
EC Number:
943-498-3
Molecular formula:
C27 H45 N O3 C44 H80 N2 O2
IUPAC Name:
Reaction mass of methyl N-octadecylterephthalamate and 37437-26-6
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder

Test animals

Species:
rabbit
Strain:
New Zealand White

Test system

Type of coverage:
semiocclusive
Preparation of test site:
clipped
Vehicle:
other: polyethyleneglycol 400
Controls:
not required
Amount / concentration applied:
500 mg test substance moistened with 1.2 mL 0.9 % polyethyleneglycol 400
Duration of treatment / exposure:
4 hours
Observation period:
30- 60 min., 24, 48 and 72 hours after treatment.
Number of animals:
3

Results and discussion

In vivo

Results
Irritation parameter:
overall irritation score
Basis:
mean
Time point:
other: 72 hours
Score:
0
Max. score:
0

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
Under the conditions of this test and the results obtained, it is concluded, that the test substance is not irritant to the skin.
Executive summary:

In order to evaluate the dermal irritant/corrosive potential of the test substance an in vivo test in rabbits was performed in 1984 which was in accordance to guideline OECD 404. 24 hours prior to treatment the animals back was shaved to receive a skin area of about 10 x10 square centimeters for treatment. Only animals with intact skin were chosen for the test. The 3 animals were each treated with 0.5 mL test substance per animal on the right flank, whereas the left side serves as control. The treated area was covered by an semi-occlusive bandage and fixed with a non-irritant tape for 4 hours. After these 4 hours, the bandage was removed and the remaining test substance was carefully removed from the skin. Mortality and clinical signs of toxicity were observed once daily. The skin was assessed for edema, eschar formation or erythema according to Draize, 60 minutes, 24, 48 and 72 hours after removing of bandage. No mortality occurred. No clinical signs of toxicity were observed. The overall mean scoring value is 0 for erythema and edema formation.

Under the conditions of this test and the results obtained, it is concluded, that the test substance is not irritant to the skin.