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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

The effective concentration (EC50) value based on QSAR prediction of D&C Yellow No. 11 (CAS No 8003-22-3) in aquatic algae (Scenedesmus subspicatus (new name: Desmodesmus subspicatus)) in 72 hrs was estimate to be 0.47465 mg/l.

Key value for chemical safety assessment

EC50 for freshwater algae:
0.475 mg/L

Additional information

The effective concentration (EC50) value based on QSAR prediction of D&C Yellow No. 11 (CAS No 8003-22-3) in aquatic algae(Scenedesmus subspicatus (new name: Desmodesmus subspicatus)) in 72 hrs was estimate to be 0.47465 mg/l. Also in aquatic algae(Pseudokirchnerella subcapitata) in 72 hrs was estimate to be4.8425 mg/l

Therefore the EC50 was considered to be0.47465mg/L for D&C Yellow No. 11 and it is not readily biodegradable in nature indicating that test substance likely to exhibit toxicity to aquatic algae in aquatic chronic 1 category as per the CLP criteria.