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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Type of information:
(Q)SAR
Adequacy of study:
weight of evidence
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:
1. SOFTWARE: VEGA

2. MODEL (incl. version number): Skin Sensitization model (CAESAR) 2.1.6

3. SMILES OR OTHER IDENTIFIERS USED AS INPUT FOR THE MODEL: O=C1OC(=O)c2c1c(c(c(c2Cl)Cl)Cl)Cl

4. SCIENTIFIC VALIDITY OF THE (Q)SAR MODEL
Skin Sensitization model (CAESAR) 2.1.6

5. APPLICABILITY DOMAIN
see attached report

6. ADEQUACY OF THE RESULT
The model provides a qualitative prediction of skin sensitisation on mouse (local lymph node assay model). It is implemented inside the VEGA online platform, accessible at:http://www.vega-qsar.eu/
The model consists in an Adaptive Fuzzy Partition (AFP) based on 8 descriptors. The AFP produces as output two values O(positive) and O(negative) that represent the belonging degree respectively
to the sensitiser and non-sensitise classes and the reliability of the result. An adequate and reliable documentation of the applied method is provided.

Data source

Reference
Reference Type:
publication
Title:
VEGA-QSAR: AI inside a platform for predictive toxicology
Author:
Benfenati E, Manganaro A, Gini G
Year:
2013
Bibliographic source:
Published on CEUR Workshop Proceedings Vol-1107

Materials and methods

Principles of method if other than guideline:
VEGA Skin Sensitization model (CAESAR) 2.1.6

Test material

Constituent 1
Chemical structure
Reference substance name:
Tetrachlorophthalic anhydride
EC Number:
204-171-4
EC Name:
Tetrachlorophthalic anhydride
Cas Number:
117-08-8
Molecular formula:
C8Cl4O3
IUPAC Name:
tetrachloro-1,3-dihydro-2-benzofuran-1,3-dione

Results and discussion

In vitro / in chemico

Results
Remarks on result:
positive indication of skin sensitisation
Remarks:
QSAR Prediction

Applicant's summary and conclusion

Interpretation of results:
other: