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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Environmental fate & pathways


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Administrative data

Link to relevant study record(s)

Description of key information

The results of pH 4.0, pH 7.0 and pH 9.0 showed no significant degradation of ucb 6474 at 50°C. The degradation of ucb 6474 was less than 10 % after 5 days. According to the EEC Directive 92/69, Section C.7, it can be concluded, that the estimated half-life time is higher than one year under representative environmental conditions (25°C), Therefore, ucb 6474 was considered to be hydrolytically stable, and no furter testing was necessary.

Key value for chemical safety assessment

Half-life for hydrolysis:
1 yr
at the temperature of:
20 °C

Additional information