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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Short-term toxicity to fish

Currently viewing:

Administrative data

Endpoint:
short-term toxicity to fish
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
August 1979
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
documentation insufficient for assessment

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1979
Report date:
1979

Materials and methods

Test guideline
Qualifier:
no guideline available
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Chromate(2-), [2-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]benzoato(2-)][2-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-5-sulfobenzoato(3-)]-, lithium sodium
EC Number:
288-678-6
EC Name:
Chromate(2-), [2-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]benzoato(2-)][2-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-5-sulfobenzoato(3-)]-, lithium sodium
Cas Number:
85865-79-8
Molecular formula:
C34H23CrLiN8NaO9S
IUPAC Name:
Chromate(2-), [2-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]benzoato(2-)][2-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-5-sulfobenzoato(3-)]-, lithium sodium
Test material form:
solid: particulate/powder

Sampling and analysis

Analytical monitoring:
no

Test solutions

Vehicle:
no

Test organisms

Test organisms (species):
Leuciscus idus melanotus

Study design

Test type:
static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
48 h

Test conditions

Nominal and measured concentrations:
2 mg/L; 5 mg/L
Reference substance (positive control):
not specified

Results and discussion

Effect concentrations
Duration:
48 h
Dose descriptor:
LC50
Effect conc.:
3.2 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality (fish)
Remarks on result:
other: geometric mean value of LC0 (2 mg/L) and LC100 (5 mg/L)

Applicant's summary and conclusion

Validity criteria fulfilled:
not specified
Conclusions:
The 48-h LC50 in Leucisdus idus was determined at 3.2 mg/L as geometric mean value of LC0 (2 mg/L) and LC100 (5 mg/L). No detailed information available.