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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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: Guideline study with unknown guideline from reliable source but detailed information only available in japanese.

Data source

Reference
Reference Type:
publication
Title:
Information on Environmental Toxicity
Author:
NITE Japan
Year:
2003
Bibliographic source:
NITE (National Institute of Technology and Evaluation) Japan, available at: http://www.safe.nite.go.jp/english/db.html

Materials and methods

Principles of method if other than guideline:
no guideline cited
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
4-aminoazobenzene
EC Number:
200-453-6
EC Name:
4-aminoazobenzene
Cas Number:
60-09-3
Molecular formula:
C12H11N3
IUPAC Name:
4-[(E)-2-phenyldiazen-1-yl]aniline
Details on test material:
- Name of test material (as cited in study report): Aminoazobenzene

Test organisms

Test organisms (species):
Raphidocelis subcapitata (previous names: Pseudokirchneriella subcapitata, Selenastrum capricornutum)

Study design

Test type:
static
Water media type:
freshwater
Total exposure duration:
72 h

Results and discussion

Effect concentrationsopen allclose all
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
2.9 mg/L
Basis for effect:
growth rate
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
0.14 mg/L
Basis for effect:
growth rate
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
1.2 mg/L
Basis for effect:
other: area under growth curve
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
0.14 mg/L
Basis for effect:
other: area under growth curve

Applicant's summary and conclusion