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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Short-term toxicity to aquatic invertebrates

Administrative data

Endpoint:
short-term toxicity to aquatic invertebrates
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP study according EU/OECD guideline.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2013
Report date:
2013

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method C.2 (Acute Toxicity for Daphnia)
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
methyl 4-(isocyanatosulfonyl)-5-methylthiophene-3-carboxylate
EC Number:
618-297-6
Cas Number:
897671-34-0
Molecular formula:
C8H7NO5S2
IUPAC Name:
methyl 4-(isocyanatosulfonyl)-5-methylthiophene-3-carboxylate

Sampling and analysis

Analytical monitoring:
yes

Test solutions

Vehicle:
no

Test organisms

Test organisms (species):
Daphnia magna

Study design

Test type:
static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
48 h

Results and discussion

Effect concentrationsopen allclose all
Duration:
24 h
Dose descriptor:
EC50
Effect conc.:
> 21.3 mg/L
Nominal / measured:
meas. (initial)
Conc. based on:
act. ingr.
Basis for effect:
mobility
Duration:
48 h
Dose descriptor:
EC50
Effect conc.:
> 21.3 mg/L
Nominal / measured:
meas. (initial)
Conc. based on:
act. ingr.
Basis for effect:
mobility
Duration:
24 h
Dose descriptor:
EC0
Effect conc.:
>= 21.3 mg/L
Nominal / measured:
meas. (initial)
Conc. based on:
act. ingr.
Basis for effect:
mobility
Duration:
48 h
Dose descriptor:
EC0
Effect conc.:
>= 21.3 mg/L
Nominal / measured:
meas. (initial)
Conc. based on:
act. ingr.
Basis for effect:
mobility

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
The test substance did not show any effects under the conditions of this test.
The EC0 is ≥ 21.3 mg/L (measured initial concentration).