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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

The biodegradation in water of N,N-dimethyl-p-toluidine has been predicted with the BIOWIN program (version 4.10). Based on the results from the predictions with Biowin models, supported by Log Koc= 2.1010(EPI) which shows low tendency of sorption to soil and sediment and therefore have moderate migration potential to groundwater and insolubility in water ,it can be assessed that N,N-dimethyl-p-toluidine is persistent and not readily biodegradable in water

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed

Additional information

Based on the weight of evidence approach, the number of studies were reviewed for biodegradation in water from reliable sources having Klimish rating 2.

The summary of the results is presented below:







Biodegradation in water


Not readily biodegradable

Predicted data of Target chemical


Biodegradation in water


Not Readily biodegradable

Data is from database from CAS NO 91-66-7


Based on the study result and predicted data, it is concluded that the chemical is not readily biodegradeble in nature and appeared to be persistent in water medium