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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint:
short-term toxicity to fish
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study was performed according to Guideline but without detailed documentation

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1991

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 203 (Fish, Acute Toxicity Test)
Deviations:
not specified
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
2,6-dichlorobenzoxazole
EC Number:
222-818-9
EC Name:
2,6-dichlorobenzoxazole
Cas Number:
3621-82-7
Molecular formula:
C7H3Cl2NO
IUPAC Name:
2,6-dichloro-1,3-benzoxazole

Sampling and analysis

Analytical monitoring:
not specified

Test organisms

Test organisms (species):
Leuciscus idus melanotus

Study design

Test type:
static
Limit test:
no
Total exposure duration:
96 h

Results and discussion

Effect concentrationsopen allclose all
Duration:
48 h
Dose descriptor:
LC50
Effect conc.:
0.5 - 0.6 mg/L
Conc. based on:
test mat.
Duration:
96 h
Dose descriptor:
LC50
Effect conc.:
0.5 - 0.6 mg/L
Conc. based on:
test mat.

Applicant's summary and conclusion

Conclusions:
The LC50 (96 hours) of the test substance is between 0.5 and 0.6 mg/L. The TS has to be regarded as very toxic to fish.