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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Endpoint:
toxicity to aquatic algae and cyanobacteria
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
other: Body responsible for the test
Title:
Unnamed
Year:
1996

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: OCDE n° 201 (1984) Directive CEE/92/69 (1992) - annexe V - méthode C3
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
N,N'-bis(2,2,6,6-tetramethyl-4-piperidyl)isophthalamide
EC Number:
419-710-0
EC Name:
N,N'-bis(2,2,6,6-tetramethyl-4-piperidyl)isophthalamide
Cas Number:
42774-15-2
Molecular formula:
C26H42N4O2
IUPAC Name:
N,N'-bis(2,2,6,6-tetramethyl-4-piperidyl)isophthalamide
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder

Test organisms

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

Study design

Limit test:
yes
Total exposure duration:
72 h

Test conditions

Hardness:
< 90 mg CaCO3/L

Results and discussion

Effect concentrationsopen allclose all
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
> 250 mg/L
Basis for effect:
biomass
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
> 250 mg/L
Basis for effect:
growth rate
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
> 250 mg/L
Basis for effect:
growth rate
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
> 250 mg/L
Basis for effect:
biomass
Details on results:
%Concentration loss over test: ... 0

Applicant's summary and conclusion