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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Short-term toxicity to fish

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Administrative data

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Endpoint:
short-term toxicity to fish
Type of information:
other: OECD QSAR Toolbox v4.1 prediction
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:
See attached justification
Qualifier:
no guideline followed
Principles of method if other than guideline:
Data calculated by the QSAR Toolbox.
GLP compliance:
no
Test organisms (species):
other: Danio rerio Oncorhynchus mykiss Oryzias latipes Pimephales promelas
Test type:
not specified
Total exposure duration:
96 h
Key result
Duration:
96 h
Dose descriptor:
LC50
Effect conc.:
12.7 mg/L
Basis for effect:
mortality (fish)
Remarks on result:
other: Toolbox value by trend analysis
Conclusions:
The fish toxicity of 1,3-difluorobenzene (1,3-DFB) was determined by trend analysis using the QSAR Toolbox and the 96h LC50 (mortality) of 1,3-DFB to fish was 12.7 mg/L.
Endpoint:
short-term toxicity to fish
Type of information:
other: OECD QSAR Toolbox v4.1 prediction
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:
See attached justification
Qualifier:
no guideline followed
Principles of method if other than guideline:
Data predicted by the QSAR Toolbox.
GLP compliance:
no
Test organisms (species):
other: Danio rerio Oncorhynchus mykiss Oryzias latipes Pimephales promelas
Test type:
not specified
Total exposure duration:
96 h
Key result
Duration:
96 h
Dose descriptor:
LC50
Effect conc.:
7.5 mg/L
Basis for effect:
mortality (fish)
Remarks on result:
other: Toolbox value by read-across
Conclusions:
The fish toxicity of 1,3-difluorobenzene (1,3-DFB) was determined by read-across using the QSAR Toolbox and the 96h LC50 (mortality) of 1,3-DFB to fish was 7.5 mg/L.

Description of key information

Two predictions were performed with QSAR Toolbox, one by read-across (96h LC50: 7.5 mg/L), one by trend analysis (96 LC50: 12.7 mg/L).

As a worst case approach, 1,3 -difluorobenzene is considered as toxic for fish.

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
7.5 mg/L

Additional information