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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
1979-12 - 1982-12
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
documentation insufficient for assessment

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1982
Report date:
1982

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
Acute toxicity to fish; test procedure: ventilated test medium, static system, loading rate: 10 animals/vessel, 96h
GLP compliance:
no
Remarks:
Study conducted prior to GLP implementation

Test material

Constituent 1
Chemical structure
Reference substance name:
p-tert-butylaniline
EC Number:
212-215-9
EC Name:
p-tert-butylaniline
Cas Number:
769-92-6
Molecular formula:
C10H15N
IUPAC Name:
4-tert-butylaniline

Test solutions

Vehicle:
yes
Details on test solutions:
1g of the test substance was dissolved in 1g ethanol

Test organisms

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

Study design

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

Results and discussion

Effect concentrationsopen allclose all
Duration:
96 h
Dose descriptor:
LC0
Effect conc.:
45 mg/L
Duration:
96 h
Dose descriptor:
LC100
Effect conc.:
46 mg/L

Applicant's summary and conclusion

Validity criteria fulfilled:
not specified
Conclusions:
LC100 (96h) = 46 mg/L
LC0 (96h) = 45 mg/L
LC50 could not be determined due to the steep dose/response curve, but will be ~ 45.5 mg/L. The result would trigger a classification as Category Chronic 3 (no chronic data available and the substance is not readily biodegradable), but the study cannot be used for classification due to the insufficient documentation, the reliability of the study and the results cannot be evaluated.