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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicity to aquatic algae and cyanobacteria

Administrative data

Endpoint:
toxicity to aquatic algae and cyanobacteria
Type of information:
experimental study
Adequacy of study:
key study
Study period:
no data
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Test compliant with GLP and Guideline OECD 201

Data source

Reference
Reference Type:
other: Body responsible for the test
Title:
Unnamed
Year:
1988

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 201 (Alga, Growth Inhibition Test)
Deviations:
not specified
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
2-methyl-1-(4-methylthiophenyl)-2-morpholinopropan-1-one
EC Number:
400-600-6
EC Name:
2-methyl-1-(4-methylthiophenyl)-2-morpholinopropan-1-one
Cas Number:
71868-10-5
Molecular formula:
C15H21NO2S
IUPAC Name:
2-methyl-1-(4-methylthiophenyl)-2-morpholinopropan-1-one

Test solutions

Details on test solutions:
Identiy and concentration of auxiliary solvent for dispersal: DMF

Test organisms

Test organisms (species):
Desmodesmus subspicatus (previous name: Scenedesmus subspicatus)

Study design

Limit test:
no
Total exposure duration:
72 h

Results and discussion

Effect concentrationsopen allclose all
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
1.2 mg/L
Basis for effect:
biomass
Duration:
72 h
Dose descriptor:
EC5
Effect conc.:
1.6 mg/L
Basis for effect:
growth rate
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
0.39 mg/L
Basis for effect:
growth rate
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
0.86 mg/L
Basis for effect:
biomass
Details on results:
%Concentration loss over test 30...25

Applicant's summary and conclusion