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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Endpoint:
skin irritation / corrosion, other
Remarks:
in silico structural alerts
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 limited documentation / justification
Justification for type of information:
1. SOFTWARE
Toxtree v3.1

2. MODEL
1. SOFTWARE
Toxtree v3.1

2. MODEL
Skin irritation/skin corrosion

3. SMILES OR OTHER IDENTIFIERS USED AS INPUT FOR THE MODEL
CCC(=O)C(C)=O

4. SCIENTIFIC VALIDITY OF THE (Q)SAR MODEL
- Defined endpoint: Skin irritation
- Unambiguous algorithm: Structural alerts for skin irritation
- Defined domain of applicability: Not reported
- Appropriate measures of goodness-of-fit and robustness and predictivity: Not reported
- Mechanistic interpretation: Toxtree applies structural alerts to identify potentially irritating chemicals
5. APPLICABILITY DOMAIN
1
- Descriptor domain: Toxtree applies structural alerts to identify potentially irritating chemicals
- Structural and mechanistic domains: Toxtree applies structural alerts to identify potentially irritating to skin
chemicals
- Similarity with analogues in the training set: Not reported

6. ADEQUACY OF THE RESULT
Toxtree is an established model for predicting the genotoxicity of chemicals based on structural alerts. Therefore, the prediction is considered valid despite the limited documentation.

Data source

Reference
Reference Type:
other:
Title:
ToxtreeToxtree: Toxic Hazard Estimation
Author:
Ideaconsult
Year:
2018
Bibliographic source:
ToxtreeToxtree: Toxic Hazard Estimation

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
Software tool(s) used including version: Toxtree v3.1
- Model(s) used: Skin irritation/skin corrosion
- Model description: see field 'Attached justification'

Test material

Constituent 1
Chemical structure
Reference substance name:
Pentane-2,3-dione
EC Number:
209-984-8
EC Name:
Pentane-2,3-dione
Cas Number:
600-14-6
Molecular formula:
C5H8O2
IUPAC Name:
pentane-2,3-dione
Test material form:
liquid
Specific details on test material used for the study:
Not applicable.

Results and discussion

In vitro

Results
Irritation / corrosion parameter:
other: Structural alert
Run / experiment:
QSAR model
Value:
> 0
Vehicle controls validity:
not applicable
Negative controls validity:
not applicable
Positive controls validity:
not applicable
Remarks on result:
positive indication of irritation

In vivo

Irritant / corrosive response data:
Irritating

Applicant's summary and conclusion

Interpretation of results:
study cannot be used for classification
Conclusions:
The test material was considered irritating based on structural alerts.
Executive summary:

The test material was considered irritating based on structural alerts.