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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicological information

Skin sensitisation

Currently viewing:

Administrative data

Endpoint:
skin sensitisation, other
Remarks:
QSAR prediction for skin sensitisation (SciQSAR)
Type of information:
(Q)SAR
Adequacy of study:
weight of evidence
Study period:
2017-10-16
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification
Justification for type of information:
Please refer to the OPRF and QMRF report attached in section 'Attached Justification'.

Data source

Reference
Reference Type:
other: QSAR tool
Title:
SciMatics SciQSAR version of commercial CASE Ultra model A33 for allergic contact dermatitis (ACD) in guinea pig and human, Danish QSAR Group at DTU Food.
Author:
MultiCASE Inc.23811 Chagrin Blvd Ste 305, Beachwood, OH, 44122, USA
Year:
2014
Bibliographic source:
This is a categorical (Q)SAR model based on calculated molecular descriptors, and if available the modeller’s own or third party descriptors or measured endpoints can be imported and used as descriptors.

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: REACH Guidance on QSARs R.6
Principles of method if other than guideline:
A prediction was performed with the QSAR model SciQSAR.

Test material

Constituent 1
Chemical structure
Reference substance name:
6-bromo-3-methyl-3H-dibenz[f,ij]isoquinoline-2,7-dione
EC Number:
201-381-8
EC Name:
6-bromo-3-methyl-3H-dibenz[f,ij]isoquinoline-2,7-dione
Cas Number:
81-85-6
Molecular formula:
C17H10BrNO2
IUPAC Name:
6-bromo-3-methyl-3H-naphtho[1,2,3-de]quinoline-2,7-dione

Results and discussion

In vitro / in chemico

Results
Parameter:
other: QSAR
Remarks on result:
positive indication of skin sensitisation

Any other information on results incl. tables

Pyridon is predicted to be sensitising by the skin sensitization model SciQSAR.

Applicant's summary and conclusion

Interpretation of results:
other: data not sufficient for classification
Conclusions:
Pyridon is predicted to be sensitising.
Executive summary:

Skin sensitization of Pyridon was predicted with the Skin Sensitization model SciQSAR, which is implemented in the 'Danish QSAR Database'. Pyridon is predicted to be sensitising. This prediction is reliable, it was generated by a scientifically valid model and lies within the applicability domain (please refer also to the QPRF and QMRF attached in the section 'Attached Justification').