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Description of key information

Half life pH7: 3.6 days, pH9: 1 hour at 25°C

Key value for chemical safety assessment

Half-life for hydrolysis:
3.6 d
at the temperature of:
25 °C

Additional information

In the course of the hydrolysis preliminary test the test substance proved to be hydrolytically stable at pH 4; but significant decomposition was observed at pH7 and 9. Therefore the purpose of this study was to perform the hydrolysis main test and evaluate the abiotic degradation at pH7 and 9.

This study has been performed in accordance with the study plan,OECD Guidelines for Testing of Chemicals (No. 111), Commission Regulation: Methods for the Determination of Ecotoxicity (C.7.) and the Principles of Good Laboratory Practice (Hungarian GLP Regulations: 9/2001. (III. 30.) EüM-FVM joint decree of the Minister of Health and the Minister of Agriculture and Regional Development which corresponds to the OECD GLP, ENV/MC/CHEM (98) 17.).

Two hydrolysis products were identified: DYWJ5330 and DYWJ5362.

Summary of the results:







87 h


18 h


4.3 h



7.0 h


56 min


17 min