Registration Dossier

Ecotoxicological information

Long-term toxicity to fish

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

The chemical safety assessment carried out according to Annex I of Regulation (EC) No 1907/2006 does not indicate the need to investigate further the long-term toxicity to fish.

Key value for chemical safety assessment

Additional information

There are no long-term fish studies available for (Z)-octadec-9-enyl (Z)-docos-13-enoate (CAS 17673-56-2). Available short-term studies for fish, daphnia and algae, all indicate no potential for aquatic toxicity. Moreover, no effects on reproduction were observed in a chronic study with Daphnia magna according to OECD 211 with the structurally most similar category member (Z)-octadec-9-enyl oleate (CAS 3687-45-4). All other available chronic data with aquatic invertebrates did not show any chronic toxicity up to the water solubility limit. As there was no sign that invertebrates are less sensitive than fish in the short-term tests, it cannot be expected that a long-term test with fish will generate different results than the long-term toxicity tests with aquatic invertebrates. Due to its ready biodegradability it is not likely that aquatic organisms are exposed to the test substance since it will be ultimately degraded in sewage treatment plants. Thus, based on the above mentioned results, it can be excluded that any substance within the category will exhibit chronic toxicity to fish up to the limit of water solubility. Hence due to animal welfare reasons and to avoid unnecessary vertebrate tests, no further long-term test with fish was proposed. Thus, the chemical safety assessment carried out according to Annex I of Regulation (EC) No 1907/2006 does not indicate the need to investigate further the long-term toxicity to fish. Thus, in accordance to Annex IX, column 2 no further long-term toxicity test to fish is proposed.