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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicity to aquatic plants other than algae

Administrative data

Endpoint:
toxicity to aquatic plants other than algae
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1993
Report date:
1993

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: EPA FIFRA Subdivison J. Guideline 123-2 Groth and reproduction of aquatic plants
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
EPTC
EC Number:
212-073-8
EC Name:
EPTC
Cas Number:
759-94-4
Molecular formula:
C9H19NOS
IUPAC Name:
N,N-dipropyl(ethylsulfanyl)formamide

Test organisms

Test organisms (species):
Lemna gibba

Study design

Test type:
semi-static
Water media type:
freshwater
Total exposure duration:
14 d

Test conditions

Test temperature:
25+-1 C
Nominal and measured concentrations:
Culture medium control: nominal concentrations: 0.01, 0.032, 0.1, 0.32, 1, 3.2, 10, 32 mg/l

Results and discussion

Effect concentrationsopen allclose all
Duration:
96 h
Dose descriptor:
NOEC
Effect conc.:
ca. 0.89 mg/L
Basis for effect:
growth rate
Remarks on result:
other: P=0.05
Duration:
96 h
Dose descriptor:
other: ErC50
Effect conc.:
ca. 7 mg/L
Basis for effect:
growth rate

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
NOEC: 0.89mg/l
ErC50: 7mg/l
Executive summary:

NOEC: 0.89mg/l

ErC50: 7mg/l