4-chloro-1-(dichloromethyl)benzene

Short-term toxicity to aquatic invertebrates

Administrative data

Endpoint:

short-term toxicity to aquatic invertebrates

Type of information:

experimental study

Adequacy of study:

other information

Reliability:

3 (not reliable)

Data source

Reference

Reference 1

Reference Type:

study report

Title:

Unnamed

Year:

1982

Report date:

1983

Reference 2

Reference Type:

other company data

Title:

Unnamed

Year:

1997

Report date:

1997

Materials and methods

Principles of method if other than guideline:

Acording DIN 38412, part 11

GLP compliance:

no

Test material

Test material information

Constituent 1

Reference substance name:

4-chloro-1-(dichloromethyl)benzene

EC Number:

237-721-7

EC Name:

4-chloro-1-(dichloromethyl)benzene

Cas Number:

13940-94-8

Molecular formula:

C7H5Cl3

IUPAC Name:

1-chloro-4-(dichloromethyl)benzene

Details on test material:

Purity of test item ca 99.5 %.

Test solutions

Details on test solutions:

- Stock solution: saturated solution prepared by stirring a batch in water at room temperature for 72h and filtrating it through a folded paper filter;
- Concentration of stock solution: 990 mg DOC/L, corresponding to 2302 mg/l 4-Chlorobenzal chloride;

Test organisms

Test organisms (species):

Daphnia magna

Study design

Test type:

static

Test conditions

Test temperature:

Roomtemperature

Nominal and measured concentrations:

Nominal concentrations: Dilution of the stock solution with 990 mg DOC/L, corresponding to 2302 mg/l 4-chlorobenzal chloride
Diluted from 1:300 corresponding to 7.67 mg/l test substance up to 1:1 nominal concetration.

Results and discussion

Effect concentrations

Duration:

24 h

Dose descriptor:

EC50

Effect conc.:

ca. 60 mg/L

Nominal / measured:

nominal

Conc. based on:

test mat.

Applicant's summary and conclusion

Conclusions:

With the indicated test data the EC50 of 4-chlorobenzal chloride to Daphnia magna under the conditions of the test was estimated to be ca. 60 mg/l.