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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: see 'Remark'
Remarks:
Meets generally accepted scientific principles. The main restriction for assigning a reliability of (2) is that the substance was applied under occlusive conditions for 24 hours instead of semi-occlusively for 4 hours (cf. OECD TG 404 as compared to OECD TG 402).

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1976
Report date:
1976

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: guidelines of the Federal Hazardous Substance Labeling Act
GLP compliance:
no

Test material

Constituent 1
Reference substance name:
930-915-9
EC Number:
930-915-9
IUPAC Name:
930-915-9
Details on test material:
- Name of test material (as cited in study report): Code 504 Can #19a
- Related CAS number: 1318-02-1
- Physical state: white fine powder
- Analytical purity: no data
- surface modified with approx. 10% rare earth elements

Test animals

Species:
rabbit
Strain:
not specified

Test system

Type of coverage:
occlusive
Preparation of test site:
other: shaved and abraded
Vehicle:
not specified
Controls:
yes
Amount / concentration applied:
2000 mg/kg
Duration of treatment / exposure:
24 h
Observation period:
48 h
Number of animals:
5
Details on study design:
After a 7-day acclimation period, ten rabbits were clipped free of fur over the entire upper back area. Five of the test sites were abraded by making a series of five parallel superficial scratches in the dermis; the remaining five were left intact. The compound was applied at 2000 mg/kg of bw to the shaved skin and wrapped with an impervious band which was left in place for 24 hours. Animals were observed for mortality and for signs of erythema or edema according to the Draize scoring system for up to 48 hours. Body weight was recorded at dosing.

Results and discussion

In vivo

Results
Irritation parameter:
primary dermal irritation index (PDII)
Basis:
mean
Remarks:
5 animals
Time point:
other: 24 and 48 h
Score:
0
Irritant / corrosive response data:
No deaths were noted up to 48 hours after application. Neither erythema nor edema were observed at any rabbit after 24 and 48 hours, respectively.

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information