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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Water solubility

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Description of key information

The water solubility of the test substance cannot be determined due to the quick hydrolysis of the test substance (half life time < 4 minutes). The water solubility of MPKO, the hydrolysis product of OS9600, was determined to be 34.7 g/L at 19.8°C and pH of 7.4.

Key value for chemical safety assessment

Water solubility:
34.7 g/L
at the temperature of:
19.8 °C

Additional information

Data waiving (study technically not feasible): The test substance hydrolyses quickly (half life time < 4 minutes) and therefore, the water solubility cannot be determined.

Supporting study: The water solubility of the analogue substance MPKO was determined using the flask method in accordance with OECD Guideline 105 and EU Method A.6. The water solubility was 34.7 g/L at 19.8 ºC and pH of 7.4.