Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Test procedure in accordance with national standard methods with acceptable restrictions

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2008

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
no data
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
methyl 5-methyl-4-oxothiolane-3-carboxylate
EC Number:
619-801-7
Cas Number:
66319-07-1
Molecular formula:
C7H10O3S
IUPAC Name:
methyl 5-methyl-4-oxothiolane-3-carboxylate

Sampling and analysis

Analytical monitoring:
not specified

Test solutions

Vehicle:
not specified

Study design

Test type:
not specified
Water media type:
not specified
Limit test:
no
Remarks on exposure duration:
no data

Test conditions

Reference substance (positive control):
not specified

Results and discussion

Effect concentrationsopen allclose all
Dose descriptor:
NOEC
Effect conc.:
0.5 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
not specified
Remarks on result:
other: no data for duration
Dose descriptor:
other: ErC50
Effect conc.:
> 0.5 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
not specified
Remarks on result:
other: no data for duration
Details on results:
% inhib
0.001/0.05/0.5 mg/L - 0/1/0
ErC50: > 0.5
NOEC: 0.5

Applicant's summary and conclusion

Validity criteria fulfilled:
not specified
Conclusions:
ErC50 >0.5
NOEC 0.5