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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Description of key information

Skin sensitisation: positive

Key value for chemical safety assessment

Skin sensitisation

Link to relevant study records

Referenceopen allclose all

Endpoint:
skin sensitisation: in vivo (non-LLNA)
Type of information:
(Q)SAR
Adequacy of study:
weight of evidence
Study period:
July 10, 2020
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:
The model is been assessed according to the OECD principles for the validation of QSAR, to generate a transparent, understandable, reproducible and verifiable result.
Reason / purpose for cross-reference:
reference to same study
Qualifier:
according to guideline
Guideline:
other:
Version / remarks:
ECHA Guidance on information requirements and chemical safety assessment - Chapter R.06: QSARs and grouping of chemicals
Principles of method if other than guideline:
Prediction was calculated using QSAR Toolbox v.4.1
Data gap filling method: Trend analysis, executed via AW "Skin sensitization"
Justification for non-LLNA method:
The prediction is based on Guinea Pig Maximisation Test (GPMT) experimental existing data.
Species:
guinea pig
Remarks on result:
positive indication of skin sensitisation
Interpretation of results:
Category 1 (skin sensitising) based on GHS criteria
Conclusions:
Diisopropyl maleate is predicted to exhibit skin sensitisation by QSAR Toolbox, evaluating Guinea Pig Maximisation Test (GPMT) experimental existing data on similar substances.
Executive summary:

Diisopropyl maleate is predicted to exhibit skin sensitisation by QSAR Toolbox, evaluating Guinea Pig Maximisation Test (GPMT) experimental existing data on similar substances.

Endpoint:
skin sensitisation: in vivo (LLNA)
Type of information:
(Q)SAR
Adequacy of study:
weight of evidence
Study period:
July 10, 2020
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:
The model is been assessed according to the OECD principles for the validation of QSAR, to generate a transparent, understandable, reproducible and verifiable result.
Qualifier:
according to guideline
Guideline:
other: ECHA Guidance on information requirements and chemical safety assessment - Chapter R.06: QSARs and grouping of chemicals
Principles of method if other than guideline:
Prediction was calculated using QSAR Toolbox v.4.4.1
Data gap filling method: Trend analysis, executed via AW "Skin sensitization"
Parameter:
EC3
Remarks on result:
positive indication of skin sensitisation based on QSAR/QSPR prediction
Interpretation of results:
Category 1 (skin sensitising) based on GHS criteria
Conclusions:
Diisopropyl maleate is predicted to exhibit skin sensitisation by QSAR Toolbox, evaluating Local Lymph Node Assay (LLNA) experimental existing data on similar substances.
Executive summary:

Diisopropyl maleate is predicted to exhibit skin sensitisation by QSAR Toolbox, evaluating Local Lymph Node Assay (LLNA) experimental existing data on similar substances.

Endpoint conclusion
Endpoint conclusion:
adverse effect observed (sensitising)

Justification for classification or non-classification

Diisopropyl maleate is predicted to exhibit skin sensitisation by QSAR Toolbox, evaluating both Local Lymph Node Assay (LLNA) and Guinea Pig Maximisation Test (GPMT).

Furthermore, diethyl maleate and dibutyl maleate are predicted to exhibit skin sensitisation as result of experimental data, confirming the above (Q)SAR result.