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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Endpoint:
toxicity to microorganisms
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Standardized procedure. Basic data given.

Data source

Referenceopen allclose all

Reference Type:
publication
Title:
QSAR study of the toxicity of nitrobenzene derivatives towards Daphnia magna, Chlorella pyrenoidosa and Photobacterium phosphoreum.
Author:
Deneer JW, van Leeuwen CJ, Seinen W, Maas-Diepeveen JL, Hermens JLM
Year:
1989
Bibliographic source:
Aquatic Toxicology 15: 83-98
Reference Type:
other: operating manual
Title:
Microtox system operating manual 015555879.
Author:
Beckman Instruments Inc.
Year:
1982
Bibliographic source:
Beckman Instruments Inc., Carlsbad
Reference Type:
study report
Title:
Unnamed
Year:
1986

Materials and methods

Principles of method if other than guideline:
Microtox test: carried out as described in the Beckman Instruments Manual (1982)
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
1-chloro-2-nitrobenzene
EC Number:
201-854-9
EC Name:
1-chloro-2-nitrobenzene
Cas Number:
88-73-3
Molecular formula:
C6H4ClNO2
IUPAC Name:
1-chloro-2-nitrobenzene
Details on test material:
- Name of test material (as cited in study report): 2-Chloronitrobenzene
- Analytical purity: no data

Sampling and analysis

Analytical monitoring:
no

Test organisms

Test organisms (species):
Photobacterium phosphoreum

Study design

Limit test:
no
Total exposure duration:
15 min

Test conditions

Nominal and measured concentrations:
spacing factor of nominal test substance concentrations: 3.2

Results and discussion

Effect concentrations
Duration:
15 min
Dose descriptor:
EC50
Effect conc.:
4.54 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
other: reduction of bioluminescence

Any other information on results incl. tables

result reported as log EC50 = 1.46 µmol/l

Applicant's summary and conclusion