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Diss Factsheets

Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Administrative data

Link to relevant study record(s)

Description of key information

With high probability acutely not harmful to aquatic invertebrates. 

Key value for chemical safety assessment

Additional information

The acute toxicity on aquatic invertebrates was investigated for Pigment Red 53:1 (CAS 5160-02-1) with the waterflea Daphnia magna, in GLP guideline studies according to OECD 202. Based on the low water solubility of the test item, saturated stock solutions were prepared and the tests were conducted as limit tests with a mean measured concentration of 3.8 mg/L. For the test substances no effects on the swimming mobility of daphnia within the range of solubility are observed after 48 hours of exposure. The study revealed a EC50 value of > 3.8 mg/L test substance which clearly exceeded the water solubility of the compound. Therefore, it can be assumed that the substance is not toxic up to its solubility limit.