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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
short-term toxicity to fish
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
1984
Reliability:
3 (not reliable)
Rationale for reliability incl. deficiencies:
other: Insufficient documentation, no analytical verification of the test substance concentration and no data on dissolved oxygen concentration.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1984
Report date:
1984

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 203 (Fish, Acute Toxicity Test)
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
o-anisidine
EC Number:
201-963-1
EC Name:
o-anisidine
Cas Number:
90-04-0
Molecular formula:
C7H9NO
IUPAC Name:
2-methoxyaniline
Details on test material:
Echtrot BB Base flüssig

Sampling and analysis

Analytical monitoring:
not specified

Test solutions

Vehicle:
not specified

Test organisms

Test organisms (species):
Danio rerio (previous name: Brachydanio rerio)

Study design

Test type:
static
Water media type:
freshwater
Limit test:
yes
Total exposure duration:
96 h

Results and discussion

Effect concentrations
Duration:
96 h
Dose descriptor:
LC50
Effect conc.:
> 60 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Remarks:
100 mg/L test item used, containing 60% of submission substance
Basis for effect:
mortality (fish)

Any other information on results incl. tables

Sublethal observations / clinical signs:

No letality observed; after 24 hours at 100 mg/L (60 mg/L submission substance) one fish showed elevated movement of gills and tail-heavy swimming behaviour. The other fish were without symptoms.

Applicant's summary and conclusion

Validity criteria fulfilled:
not specified
Conclusions:
An acute toxicity test on fish (Brachydanio rerio) equivalent or similar to OECD 203 with the test item had the following result:
LC50 (48 and 96 h) > 60 mg/L
Executive summary:

An acute toxicity test on fish (Brachydanio rerio) equivalent or similar to OECD 203 with the test item had the following result:

LC50 (48 and 96 h) > 60 mg/L (100 mg/L test item corresponding to 60 mg/L submission substance).