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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Short-term toxicity to fish

Currently viewing:

Administrative data

Endpoint:
short-term toxicity to fish
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Only a table with results of the fish test is stated in this publication.

Data source

Reference
Reference Type:
publication
Title:
Fate of pesticides in the enviroment - a progress report
Author:
Billy Ray Wilson
Year:
1966
Bibliographic source:
Bureau of Conservation and Enviromental Science, Rutgers University, New Brunswick, N.J., Division of Enviromental Science

Materials and methods

Test guideline
Deviations:
not specified
Principles of method if other than guideline:
no data
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Diethyl maleate
EC Number:
205-451-9
EC Name:
Diethyl maleate
Cas Number:
141-05-9
Molecular formula:
C8H12O4
IUPAC Name:
diethyl (Z)-but-2-enedioate
Details on test material:
Compound: Dietyl maleate

Sampling and analysis

Analytical monitoring:
not specified

Test organisms

Test organisms (species):
Pimephales promelas
Details on test organisms:
no data

Study design

Test type:
not specified
Water media type:
freshwater
Total exposure duration:
96 h
Post exposure observation period:
no data

Test conditions

Hardness:
no data
Test temperature:
no data
pH:
no data
Dissolved oxygen:
no data
Salinity:
not applicable
Nominal and measured concentrations:
no data
Details on test conditions:
no data
Reference substance (positive control):
not specified

Results and discussion

Effect concentrationsopen allclose all
Duration:
96 h
Dose descriptor:
other: TLm
Effect conc.:
41 mg/L
Nominal / measured:
not specified
Conc. based on:
not specified
Basis for effect:
not specified
Duration:
96 h
Dose descriptor:
LC50
Effect conc.:
41 mg/L
Nominal / measured:
not specified
Conc. based on:
not specified
Basis for effect:
mortality (fish)
Remarks on result:
other: The endpoint stated in the publication is a 96 hour TLm (median tolerance limit) which is the concentration resulting in 50 % survival after 96 hours exposure. This value corresponds to the more recent used 96 hours LC50 value.
Details on results:
no data
Results with reference substance (positive control):
no data
Reported statistics and error estimates:
no data

Applicant's summary and conclusion

Validity criteria fulfilled:
not specified
Conclusions:
The 96 hour TLm (median tolerance limit = the concentration resulting in 50 % survival after 96 hours exposure) of Diethylmaleate was found to be 41 mg/L. The 96 hours TLm value corresponds to the more recent used 96 hours LC50 value. The fish species used was Pimephales promelas.
Executive summary:

The 96 hour TLm (median tolerance limit = the concentration resulting in 50 % survival after 96 hours exposure) of Diethylmaleate was found to be 41 mg/L. The 96 hours TLm value corresponds to the more recent used 96 hours LC50 value. The fish species used was Pimephales promelas.