Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1977
Report date:
1977

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
Principles of method if other than guideline:
according to BASF-internal standard
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
1-butyl-1,2-dihydro-6-hydroxy-4-methyl-2-oxonicotinonitrile
EC Number:
254-296-3
EC Name:
1-butyl-1,2-dihydro-6-hydroxy-4-methyl-2-oxonicotinonitrile
Cas Number:
39108-47-9
Molecular formula:
C11H14N2O2
IUPAC Name:
1-butyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile
Details on test material:
Name of the test substance used in the study report: N-Butyl-2-hydroxy-3-cyan-4-methylpyridon(6)
solid

Test animals

Species:
rabbit
Strain:
New Zealand White
Details on test animals or test system and environmental conditions:
A standardized animal laboratory diet was used.

Test system

Type of coverage:
occlusive
Preparation of test site:
shaved
Vehicle:
water
Controls:
other: untreated skin of the same animal
Amount / concentration applied:
about 1 g of a 50% aqueous preparation
Duration of treatment / exposure:
20 hours
Observation period:
8 d
Number of animals:
2
Details on study design:
Application area: 2.5 x 2.5 cm

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
mean
Time point:
other: 20 h
Score:
0
Max. score:
0
Remarks on result:
other: light-green substance residues
Irritation parameter:
edema score
Basis:
mean
Time point:
other: 20 h
Score:
0
Max. score:
0
Remarks on result:
other: light-green substance residues

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: EU