Registration Dossier
Registration Dossier
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EC number: 256-917-3 | CAS number: 51022-74-3
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- no hazard identified
STP
- Hazard assessment conclusion:
- no hazard identified
Hazard for air
Hazard for terrestrial organisms
Hazard for predators
Additional information
Data describing the acute aquatic toxicity of iotroxic acid is based on read-across from iotroxic acid, disodium salt. In aqueous solution disodium salt disassociates to iotoxic acid. For details and justification of read-across please refer to the attached report in section 13 of IUCLID.
Two trophic levels (daphnia magna, aquatic algae) are covered by the acute toxicity data set . Chronic data are not available. No adverse effects were observed for both trophic levels:
In an acute immobilization test withDaphnia magna(STRAUS) according to OECD guideline 202, EC guideline Part 2 -Testing Methods, Part C.2 and GLP, the toxic effects of the test item to aquatic invertebrates were determined after 48 h exposure under static conditions. The 48-h EC50was determined to be higher than 1000 mg/L (nominal).
In a 72 hour algal growth inhibition test, cultures ofDesmodesmus subspicatuswere exposed to iotroxic acid, disodium salt under static conditions in accordance with the OECD Guideline 201 (23 March 2006), EC guideline Part 2 - Testing methods, Part C.3 and under GLP. No inhibition of growth (biomass and growth rate) was observed. The ErC50 (growth rate) was > 100 mg/L (nominal).
Conclusion on classification
Based on the results of the acute toxicity tests to aquatic organisms, and taking into account the provisions laid down in Council Directive 67/548/EEC and CLP (GHS), iotroxic acid is not classified with respect to acute and chronic ecotoxicity.
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