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REACH

A mixture of: bis(2,2,6,6-tetramethyl-1-octyloxypiperidin-4-yl)-1,10-decanedioate; 1,8-bis[(2,2,6,6-tetramethyl-4-((2,2,6,6-tetramethyl-1-octyloxypiperidin-4-yl)-decan-1,10-dioyl)piperidin-1-yl)oxy]octane

EC number: 406-750-9 | CAS number: 129757-67-1 TINUVIN 123

Life Cycle description
Uses advised against

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Administrative data

Link to relevant study record(s)

Description of key information

With high probability acutely not toxic to aquatic algae.

Key value for chemical safety assessment

Additional information

In a study according to directive 92/69/EWG, C.3 EEC the toxicity of the substance to Scenedesmus subspicatus was tested. A concentration of 2 mg/l was solved in the test medium by using a solubiliser. The observed EC50 after 72 hours of exposure was > 2 mg/l based on the algal growth rate. A comparable result was obtained by a second test on Scenedesmus subspicatus. The algae were exposed for 72 h to substance concentrations ranging from 0.1 mg/l to 10 mg/l, considering the algal growth rate an EC50 > 10 mg/l was determined.

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