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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: peer reviewed data; Advisory Committee on Existing Chemicals of Environmental Relevance (BUA) authorized by the Federal Ministry of the Environment, Nature Conservation and Nuclear Safety

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2002

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
fluorescence test
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
4-chloro-2-nitroaniline
EC Number:
201-925-4
Cas Number:
89-63-4
Molecular formula:
C6H5ClN2O2
IUPAC Name:
4-chloro-2-nitroaniline

Test organisms

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

Results and discussion

Effect concentrationsopen allclose all
Duration:
2 h
Dose descriptor:
EC10
Effect conc.:
2.1 mg/L
Duration:
2 h
Dose descriptor:
EC50
Effect conc.:
10.2 mg/L

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Remarks:
validity 2
Conclusions:
Classification for the environmental range is resulting from the more stringent data for short term toxicity to aquatic invertebrates, legal classification respectively.