Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
acute toxicity: inhalation
Type of information:
not specified
Adequacy of study:
other information
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
abstract
Remarks:
Publication in Russian

Data source

Reference
Reference Type:
publication
Title:
1,3-DFB: No information
Author:
No information
Year:
1965
Bibliographic source:
Izvestiya Sibirskogo Otdeleniya Akademii Nauk SSSR, Seriya Biologomeditsinskikh Nauk. Vol. 3, Pg. 91

Materials and methods

Test guideline
Qualifier:
no guideline followed
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
1,3-difluorobenzene
EC Number:
206-746-5
EC Name:
1,3-difluorobenzene
Cas Number:
372-18-9
Molecular formula:
C6H4F2
IUPAC Name:
1,3-difluorobenzene
Test material form:
liquid
Details on test material:
Name of the test material: 1,3-difluorobenzene
No data available

Test animals

Species:
mouse

Administration / exposure

Route of administration:
inhalation
Duration of exposure:
2 h

Results and discussion

Effect levelsopen allclose all
Dose descriptor:
LC50
Effect level:
55 mg/L air
Exp. duration:
2 h
Dose descriptor:
LC50
Effect level:
43.65 mg/L air
Exp. duration:
4 h
Remarks on result:
other: calculated with Haber's law
Clinical signs:
other: Brain and coverings: recordings from specific areas of central nervous system

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The acute inhalation LC50 - 2h value of 1,3-difluorobenzene was found to be 55 mg/L in mouse. The LC50 - 4h calculated with Haber's law was found to be 43.65 mg/L.