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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
key study
Study period:
1990-05-28 to 1990-06-15
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Guideline-conform study under GLP. Deviations made are explained and considered being acceptable concerning the overall quality of the study.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1990
Report date:
1990

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 203 (Fish, Acute Toxicity Test)
Deviations:
yes
Remarks:
see below
Qualifier:
according to guideline
Guideline:
EU Method C.1 (Acute Toxicity for Fish)
Deviations:
yes
Remarks:
see below
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Dilithium disodium (5,5'-diamino-(μ-4,4'-dihydroxy-1:2-κ-2,O4,O4',-3,3'-[3,3'-dihydroxy-1:2-κ-2-O3,O3'-biphenyl-4,4'-ylenebisazo-1:2-(N3,N4-η:N3',N4'-η)]-dinaphthalene-2,7-disulfonato(8)))dicuprate(2-)
EC Number:
407-230-4
EC Name:
Dilithium disodium (5,5'-diamino-(μ-4,4'-dihydroxy-1:2-κ-2,O4,O4',-3,3'-[3,3'-dihydroxy-1:2-κ-2-O3,O3'-biphenyl-4,4'-ylenebisazo-1:2-(N3,N4-η:N3',N4'-η)]-dinaphthalene-2,7-disulfonato(8)))dicuprate(2-)
Cas Number:
126637-70-5
Molecular formula:
Hill formula: C32 H16 Cu2 Li2 N6 Na2 O16 S4 CAS formula: C32 H16 Cu2 N6 O16 S4. 2Li 2Na
IUPAC Name:
dicopper(2+) dilithium(1+) disodium 4,4'-bis[2-(8-amino-1-oxido-3,6-disulfonatonaphthalen-2-yl)diazen-1-yl]-[1,1'-biphenyl]-3,3'-bis(olate)

Sampling and analysis

Analytical monitoring:
yes

Test solutions

Vehicle:
yes

Test organisms

Test organisms (species):
Cyprinus carpio

Study design

Test type:
semi-static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
96 h
Post exposure observation period:
not applicable

Test conditions

Hardness:
11.8 °DH
Test temperature:
21 to 21.5 °C.
pH:
8.2 +/- 0.2
Dissolved oxygen:
Oxygen concentration in the test media was found to be > 5 mg/l for all measurements performed during the final study.
Salinity:
Not being reported as such, however the detailed mineral composition of the used so-called "Dutch standard water" (DSW) is given in the original study report.
Nominal and measured concentrations:
Measured concentration varied between 93 and 106 % of the nominal concentrations of the test item.
Reference substance (positive control):
yes
Remarks:
pentachlorophenol

Results and discussion

Effect concentrationsopen allclose all
Duration:
96 h
Dose descriptor:
LC50
Effect conc.:
>= 180 - <= 320 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality (fish)
Duration:
96 h
Dose descriptor:
LC0
Effect conc.:
100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality (fish)
Duration:
96 h
Dose descriptor:
LC100
Effect conc.:
320 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality (fish)
Results with reference substance (positive control):
- Results with reference substance valid? yes
- Mortality: Concentrations: 0.18, 0.32, 0.56, 1.0 and 1.8 mgll i n DSW. At concentrations at 0.56 mg/l and higher All fish died within 96 hours
- LC50: ca. 0.5 mg/l
- Other:
Reported statistics and error estimates:
no statistics applied

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
The 96h-LC50 for carp exposed to the substance was between 180 and 320 mg/l with 0% mortality at 100 mg/l and 100% mortality at 320 mg/l.