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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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Physical & Chemical properties

Water solubility

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Description of key information


The water solubility of a sample of 4-Oxo Tempo was determined to be 216 g/L at 20°C.

Key value for chemical safety assessment

Water solubility:
216 g/L
at the temperature of:
20 °C

Additional information

In an in-house study conducted according to OECD 105, the water solubility of 4-Oxo Tempo was determined to be 216 g/L. The study was assigned a reliability rating according to Klimisch, 1997 of 2, the fact that the study was not conducted in accordance with GLP is not considered to have affected the result.