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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
short-term toxicity to fish
Type of information:
experimental study
Adequacy of study:
key study
Study period:
200-06-21 - 2001-04-11
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2001
Report date:
2001

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method C.1 (Acute Toxicity for Fish)
Deviations:
no
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
433-480-9
EC Name:
-
Cas Number:
623-53-0
Molecular formula:
C4H8O3
IUPAC Name:
ethyl methyl carbonate

Sampling and analysis

Analytical monitoring:
yes

Test solutions

Vehicle:
yes
Details on test solutions:
aqueous solution

Test organisms

Test organisms (species):
Oncorhynchus mykiss (previous name: Salmo gairdneri)

Study design

Test type:
semi-static
Water media type:
freshwater
Total exposure duration:
96 h

Test conditions

Hardness:
total hardness of approximately 100 mg/l as CaCO3
Test temperature:
14 (+-1) degree C.
pH:
7.6
Dissolved oxygen:
9.4 mg/l
Reference substance (positive control):
no

Results and discussion

Effect concentrations
Duration:
96 h
Dose descriptor:
NOEC
Effect conc.:
> 100 mg/L
Nominal / measured:
nominal
Conc. based on:
dissolved
Basis for effect:
mortality (fish)

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
The 96-Hour LC50 based on nominal concentrations was greater than 100 mg/l and correspondingly the No Observed Effect Concentration (NOEC) was 100 mg/l.
Analysis of the test solutions throughout the exposure period showed measured test concentrations to range from 94% to 101 % of nominal and so the results are based on nominal test concentrations only.
Executive summary:

The 96-Hour LC50 based on nominal concentrations was greater than 100 mg/l and correspondingly the No Observed Effect Concentration (NOEC) was 100 mg/l. Analysis of the test solutions throughout the exposure period showed measured test concentrations to range from 94% to 101 % of nominal and so the results are based on nominal test concentrations only.