3-{5-[3-(4-{1-[3-(dimethylammonio)propyl]-1,6-dihydro-2-hydroxy-4-methyl-6-oxo-3-pyridylazo}benzamido)phenylazo]-1,2-dihydro-6-hydroxy-4-methyl-2-oxo-1-pyridyl}propyl(dimethyl)ammonium di(acetate); 3-{5-[4-(3-{1,6-dihydro-2-hydroxy-4-methyl-1-[3-(methylammonio)propyl]-6-oxo-3-pyridylazo}benzamido]phenylazo]-1,2-dihydro-6-hydroxy-4-methyl-2-oxo-1-pyridyl}propyl(dimethyl)ammonium di(acetate); reaction mass of: 3-{5-[3-(4-{1,6-dihydro-2-hydroxy-4-methyl-1-[3-(methylammonio)propyl]-6-oxo-3-pyridylazo}benzamido)phenylazo]-1,2-dihydro-6-hydroxy-4-methyl-2-oxo-1-pyridyl}propyl(methyl)ammonium di(acetate)

Short-term toxicity to fish

Administrative data

Endpoint:

short-term toxicity to fish

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

1999

Report date:

1999

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 203 (Fish, Acute Toxicity Test)

GLP compliance:

yes

Test material

Test material information

Constituent 1

Reference substance name:

-

EC Number:

431-440-5

EC Name:

-

IUPAC Name:

(3-{5-[(E)-2-(3-{4-[(E)-2-{1-[3-(dimethylazaniumyl)propyl]-2-hydroxy-4-methyl-6-oxo-1,6-dihydropyridin-3-yl}diazen-1-yl]benzamido}phenyl)diazen-1-yl]-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridin-1-yl}propyl)dimethylazanium (3-{6-hydroxy-5-[(E)-2-(3-{4-[(E)-2-{2-hydroxy-4-methyl-1-[3-(methylazaniumyl)propyl]-6-oxo-1,6-dihydropyridin-3-yl}diazen-1-yl]benzamido}phenyl)diazen-1-yl]-4-methyl-2-oxo-1,2-dihydropyridin-1-yl}propyl)(methyl)azanium (3-{6-hydroxy-5-[(E)-2-(4-{3-[(E)-2-{2-hydroxy-4-methyl-1-[3-(methylazaniumyl)propyl]-6-oxo-1,6-dihydropyridin-3-yl}diazen-1-yl]benzamido}phenyl)diazen-1-yl]-4-methyl-2-oxo-1,2-dihydropyridin-1-yl}propyl)dimethylazanium hexaacetate

Sampling and analysis

Analytical monitoring:

yes

Details on sampling:

- Concentrations: nominal: 0.46, 1.0, 2.2, 4.6 and 10 mg/l

Test solutions

Vehicle:

no

Test organisms

Test organisms (species):

Oncorhynchus mykiss (previous name: Salmo gairdneri)

Study design

Test type:

static

Water media type:

freshwater

Limit test:

no

Test conditions

Hardness:

250 mg/l as CaCO3

Test temperature:

15-16°C

pH:

7.6-7.8

Dissolved oxygen:

8.9 - 9.7 mg/l

Results and discussion

Effect concentrations

Effect concentrations 1

Duration:

24 h

Dose descriptor:

LC50

Effect conc.:

> 7.5 mg/L

Nominal / measured:

meas. (arithm. mean)

Conc. based on:

test mat.

Basis for effect:

mortality (fish)

Effect concentrations 2

Duration:

48 h

Dose descriptor:

LC50

Effect conc.:

5.3 mg/L

Nominal / measured:

meas. (arithm. mean)

Conc. based on:

test mat.

Basis for effect:

mortality (fish)

Effect concentrations 3

Duration:

72 h

Dose descriptor:

LC50

Effect conc.:

4.6 mg/L

Nominal / measured:

meas. (arithm. mean)

Conc. based on:

test mat.

Basis for effect:

mortality (fish)

Effect concentrations 4

Duration:

96 h

Dose descriptor:

LC50

Effect conc.:

4.6 mg/L

Nominal / measured:

meas. (arithm. mean)

Conc. based on:

test mat.

Basis for effect:

mortality (fish)

Effect concentrations 5

Duration:

96 h

Dose descriptor:

LC100

Effect conc.:

7.5 mg/L

Nominal / measured:

meas. (arithm. mean)

Conc. based on:

test mat.

Basis for effect:

mortality (fish)

Effect concentrations 6

Duration:

96 h

Dose descriptor:

NOEC

Effect conc.:

1.2 mg/L

Conc. based on:

test mat.

Effect concentrations 7

Duration:

96 h

Dose descriptor:

LOEC

Effect conc.:

2.1 mg/L

Conc. based on:

test mat.

Details on results:

% Concentration loss over test: 10 ... 50

Applicant's summary and conclusion

Validity criteria fulfilled:

yes