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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Endpoint:
short-term toxicity to aquatic invertebrates
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
2 (reliable with restrictions)
Cross-reference
Reason / purpose for cross-reference:
reference to same study

Data source

Reference
Reference Type:
publication
Title:
Toxicity of aryl- and benzylhalides to Daphnia magna and classification of their mode of action based on quantitative structure-activity relationship
Author:
Marchini, Silvia; Passerini, Laura; Hoglund Marrilynn D.; Pino Anna; Nendza, Monika
Year:
1999
Bibliographic source:
Environmental Toxicology and Chemistry (1999), 18(12), 2759-2766

Materials and methods

Principles of method if other than guideline:
Immobilisation test.

Test material

Constituent 1
Chemical structure
Reference substance name:
α,α,2,6-tetrachlorotoluene
EC Number:
201-332-0
EC Name:
α,α,2,6-tetrachlorotoluene
Cas Number:
81-19-6
Molecular formula:
C7H4Cl4
IUPAC Name:
1,3-dichloro-2-(dichloromethyl)benzene
Details on test material:
Source: Fluka AG (Buchs, Switzerland)

Sampling and analysis

Analytical monitoring:
yes

Test organisms

Test organisms (species):
Daphnia magna
Details on test organisms:
Age of test organisms: less than 24 hours

Study design

Total exposure duration:
48 h

Test conditions

Test temperature:
21.5 °C
pH:
8.3
Details on test conditions:
16:8 hours light:dark

Results and discussion

Effect concentrations
Duration:
48 h
Dose descriptor:
EC50
Effect conc.:
0.39 mg/L
Remarks on result:
other: 0.35 - 0.44

Applicant's summary and conclusion

Conclusions:
With the indicated test data the EC50 of 2,6-dichlorobenzal chloride to Daphnia magna under the conditions of the test was estimated to be 0.39 mg/L.