Strontium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]-2-naphthoate

Short-term toxicity to fish

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

short-term toxicity to fish

Type of information:

read-across based on grouping of substances (category approach)

Adequacy of study:

key study

Justification for type of information:

Please see the category read-across justification in the category object.

Reason / purpose for cross-reference:

read-across source

Reason / purpose for cross-reference:

read-across source

Reason / purpose for cross-reference:

read-across source

Reason / purpose for cross-reference:

read-across source

Key result

Duration:

96 h

Dose descriptor:

LC50

Effect conc.:

> 100 mg/L

Remarks on result:

other: for the entire category no effects were seen up to the limit of water solubility

Reference 2

Endpoint:

short-term toxicity to fish

Type of information:

experimental study

Adequacy of study:

supporting study

Reliability:

4 (not assignable)

Rationale for reliability incl. deficiencies:

documentation insufficient for assessment

Qualifier:

according to guideline

Guideline:

other: JIS K 0102

GLP compliance:

yes

Vehicle:

yes

Details on test solutions:

- Chemical name of vehicle: HC0-40

Test organisms (species):

Oryzias latipes

Test type:

static

Water media type:

freshwater

Total exposure duration:

96 h

Test temperature:

24.5 °C

pH:

7.2 - 7.8

Duration:

96 h

Dose descriptor:

LC50

Effect conc.:

> 250 mg/L

Nominal / measured:

not specified

Conc. based on:

test mat.

Basis for effect:

mortality (fish)

Description of key information

With high probability acutely not harmful to aquatic organisms.

Additional information

The short-term toxicity to fish is assessed based on a category approach. The category members are composed of a structurally analogue organic part but different metals that are laked with the organic structure. At environmentally relevant pH values disintegration of the molucule and a release of the metal component is not expected. Therefore an influence of the laked metal part is not expected. Fish acute toxicity data are available for different members of the category. In all studies no effects were observed up to the limit of water solubility of the tested substances. Based on this information no key value for assessment can be determined. The substance is however assessed to be with high probability acutely not harmful to aquatic organisms.

In addition, for the substance data is available from a guideline study on the acute toxicity of the substance to Oryzas latipes in which a LC50 (96 h) of >250 mg/L was determined. However, since only limited information on test performance is available the study is considered as supporting information.