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Short-term toxicity to aquatic invertebrates

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Description of key information

Determination of the inhibition of the mobility of daphnids was carried out with the substanceAluminium,4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]-1H-pyrazole-3-carboxylic acid complex (CAS No12225-21-7)according to OECD Guideline 202.

The test substance was tested at the concentrations0, 50, 70, 100, 140, 200mg/L. Effects on immobilisation were observed for 48 hours.

The median effective concentration (EC50) for the test substanceAluminium, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]-1H-pyrazole-3-carboxylic acid complex (CAS No12225-21-7)in Daphnia magna was determined to be 360.4 mg/L for immobilisation effects.

This value indicates that theAluminium,4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]-1H-pyrazole-3-carboxylic acid complex (CAS No12225-21-7)

is likely to be non-hazardous to aquatic invertebrates and can be classified as "not classified" as per the CLP criteria.

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
360.4 mg/L

Additional information

Data is from the ABITEC Lab 2017,experimental report followed standard gudelinesuggests that the Determination of the inhibition of the mobility of daphnids was carried out with the substanceAluminium,4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]-1H-pyrazole-3-carboxylic acid complex (CAS No12225-21-7)according to OECD Guideline 202.

The test substance was tested at the concentrations0, 50, 70, 100, 140, 200mg/L. Effects on immobilisation were observed for 48 hours.

The median effective concentration (EC50) for the test substanceAluminium, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]-1H-pyrazole-3-carboxylic acid complex (CAS No12225-21-7)in Daphnia magna was determined to be 360.4 mg/L for immobilisation effects.

This value indicates that theAluminium,4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]-1H-pyrazole-3-carboxylic acid complex (CAS No12225-21-7)

is likely to be non-hazardous to aquatic invertebrates and can be classified as "not classified" as per the CLP criteria.