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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicity to aquatic algae and cyanobacteria

Administrative data

Endpoint:
toxicity to aquatic algae and cyanobacteria
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
3 (not reliable)
Rationale for reliability incl. deficiencies:
other: Significant methodological deficiences (exposure time to short)

Data source

Reference
Reference Type:
publication
Title:
Ergebnisse der Untersuchungen von chemischen Stoffen mit vier Biotests. Deutsche gewaesserkundliche Mitteilungen 27(3), 77-79.
Author:
Knie J, Haelke A, Juhnke I, Schiller W.
Year:
1983

Materials and methods

Principles of method if other than guideline:
Method: other: Inhibition of oxygen production in the Warburg apparatus (according to Tuempling v W (1972). Fortschritte der Wasserchemie 14, 205-213
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
2-chloro-4-nitrotoluene
EC Number:
204-501-7
EC Name:
2-chloro-4-nitrotoluene
Cas Number:
121-86-8
Molecular formula:
C7H6ClNO2
IUPAC Name:
2-chloro-1-methyl-4-nitrobenzene
Details on test material:
- Name of test material (as cited in study report): 2-chlor-4-nitrotoluol
- purity not specified

Sampling and analysis

Analytical monitoring:
not specified

Test solutions

Vehicle:
not specified

Test organisms

Test organisms (species):
other: other algae: Haematococcus pluvialis FLOTOW

Study design

Remarks on exposure duration:
no data

Results and discussion

Effect concentrations
Duration:
4 h
Dose descriptor:
EC50
Effect conc.:
9 mg/L
Nominal / measured:
not specified
Conc. based on:
not specified
Basis for effect:
other: inhibition of oxygen production

Applicant's summary and conclusion