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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

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

Data source

Reference
Reference Type:
publication
Title:
Comparison of the susceptibility of 11 freshwater species to 8 chemical compounds II. (Semi)Chronic toxicity tests.
Author:
Slooff W, Canton JH
Year:
1983
Bibliographic source:
Aquat Toxicol 4: 271 - 282

Materials and methods

Principles of method if other than guideline:
toxicity test on the amphibian Xenopus laevis
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
2,4-dichloroaniline
EC Number:
209-057-8
EC Name:
2,4-dichloroaniline
Cas Number:
554-00-7
Molecular formula:
C6H5Cl2N
IUPAC Name:
2,4-dichloroaniline

Sampling and analysis

Analytical monitoring:
no

Test organisms

Test organisms (species):
Xenopus laevis
Details on test organisms:
- Age at study initiation: < 2 days
- Feeding during test
- Food type: Neattle powder, heart

Study design

Test type:
semi-static
Water media type:
freshwater
Total exposure duration:
100 d

Test conditions

Test temperature:
20 ± 1 °C
Details on test conditions:
TEST SYSTEM
- No. of organisms per group (vessel): 75
- Test volume per group: 50 l
- Test medium: Dutch Standard Water (DSW)

OTHER TEST CONDITIONS
- Photoperiod: circadic

EFFECT PARAMETERS MEASURED (with observation intervals if applicable) :
- mortality
- development
- growth

Results and discussion

Effect concentrationsopen allclose all
Duration:
100 d
Dose descriptor:
NOEC
Effect conc.:
1 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality
Duration:
100 d
Dose descriptor:
NOEC
Effect conc.:
0.32 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
other: development
Duration:
100 d
Dose descriptor:
NOEC
Effect conc.:
1 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
other: growth

Applicant's summary and conclusion