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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
toxicity to microorganisms, other
Type of information:
(Q)SAR
Adequacy of study:
disregarded due to major methodological deficiencies
Reliability:
3 (not reliable)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model, but not (completely) falling into its applicability domain, and documentation / justification is limited
Remarks:
The predicted compound is outside the Applicability Domain of the model.
Justification for type of information:
The reliability assessment of the prediction is shown in the attached document as well (QPRF). QSAR model reporting format is shown in the file QMRF attached.

Data source

Reference
Reference Type:
other: QSAR model
Title:
VEGA in silico platform
Bibliographic source:
Sludge (EC50) Toxicity model (ProtoQSAR/Combase) 1.0.1

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
other: ECHA guidance on information requirements and chemical safety assessment Chapter R.6: QSARs and grouping of chemicals.

Test material

Constituent 1
Chemical structure
Reference substance name:
(5R)-3-(3,4-difluoro-2-methoxyphenyl)-4,5-dimethyl-5-(trifluoromethyl)furan-2-one
Cas Number:
2875066-35-4
Molecular formula:
C14H11F5O3
IUPAC Name:
(5R)-3-(3,4-difluoro-2-methoxyphenyl)-4,5-dimethyl-5-(trifluoromethyl)furan-2-one
Specific details on test material used for the study:
CC1=C(C(=O)O[C@@]1(C)C(F)(F)F)C2=C(C(=C(C=C2)F)F)OC

Results and discussion

Effect concentrations
Dose descriptor:
EC50
Effect conc.:
ca. 9.23 mg/L
Remarks on result:
other: Prediction and Applicability Domain analysis for models: Sludge (EC50) Toxicity model (ProtoQSAR-Combase) 1.0.1

Any other information on results incl. tables

The prediction was deemed to be not reliable on the basis of the parameters listed above. The molecule does not fall into the applicability domain of the model.

Applicant's summary and conclusion

Validity criteria fulfilled:
no
Conclusions:
The EC50 of the substance was predicted to be ca. 9.23 mg/L, but the result may be not reliable.
The predicted compound is outside the Applicability Domain of the model.