Reaction mass of 1-Propanaminium, 3-[[2-cyano-3-[4-(diethylamino)phenyl]-1-oxo-2-propen-1-yl]oxy]-N-[2-[[2-cyano-3-[4-(diethylamino)phenyl]-1-oxo-2-propen-1-yl]oxy]ethyl]-N,N-dimethyl- & chloride

Endpoint summary

Description of key information

Biodegradation in water

Estimation Programs Interface Suite was run to predict the biodegradation potential of the test compound Reaction mass of 1-​Propanaminium, 3-​[[2-​cyano-​3-​[4-​(diethylamino)​phenyl]​-​1-​oxo-​2-​propen-​1-​yl]​oxy]​-​N-​[2-​[[2-​cyano-​3-​[4-​(diethylamino)​phenyl]​-​1-​oxo-​2-​propen-​1-​yl]​oxy]​ethyl]​-​N,​N-​dimethyl-​ & chloride in the presence of mixed populations of environmental microorganisms. The biodegradability of the substance was calculated using seven different models such as Linear Model, Non-Linear Model, Ultimate Biodegradation Timeframe, Primary Biodegradation Timeframe, MITI Linear Model, MITI Non-Linear Model and Anaerobic Model (called as Biowin 1-7, respectively) of the BIOWIN v4.10 software. The results indicate that chemical Reaction mass of 1-​Propanaminium, 3-​[[2-​cyano-​3-​[4-​(diethylamino)​phenyl]​-​1-​oxo-​2-​propen-​1-​yl]​oxy]​-​N-​[2-​[[2-​cyano-​3-​[4-​(diethylamino)​phenyl]​-​1-​oxo-​2-​propen-​1-​yl]​oxy]​ethyl]​-​N,​N-​dimethyl-​ & chloride is expected to be not readily biodegradable.

Additional information

Biodegradation in water

Predicted data for the target compound Reaction mass of 1-​Propanaminium, 3-​[[2-​cyano-​3-​[4-​(diethylamino)​phenyl]​-​1-​oxo-​2-​propen-​1-​yl]​oxy]​-​N-​[2-​[[2-​cyano-​3-​[4-​(diethylamino)​phenyl]​-​1-​oxo-​2-​propen-​1-​yl]​oxy]​ethyl]​-​N,​N-​dimethyl-​ & chloride and various supporting weight of evidence studies for its structurally and functionally similar read across substance were reviewed for the biodegradation end point which are summarized as below:

 

In a prediction done using the Estimation Programs Interface Suite was run to predict the biodegradation potential of the test compound Reaction mass of 1-​Propanaminium, 3-​[[2-​cyano-​3-​[4-​(diethylamino)​phenyl]​-​1-​oxo-​2-​propen-​1-​yl]​oxy]​-​N-​[2-​[[2-​cyano-​3-​[4-​(diethylamino)​phenyl]​-​1-​oxo-​2-​propen-​1-​yl]​oxy]​ethyl]​-​N,​N-​dimethyl-​ & chloride in the presence of mixed populations of environmental microorganisms. The biodegradability of the substance was calculated using seven different models such as Linear Model, Non-Linear Model, Ultimate Biodegradation Timeframe, Primary Biodegradation Timeframe, MITI Linear Model, MITI Non-Linear Model and Anaerobic Model (called as Biowin 1-7, respectively) of the BIOWIN v4.10 software. The results indicate that chemical Reaction mass of 1-​Propanaminium, 3-​[[2-​cyano-​3-​[4-​(diethylamino)​phenyl]​-​1-​oxo-​2-​propen-​1-​yl]​oxy]​-​N-​[2-​[[2-​cyano-​3-​[4-​(diethylamino)​phenyl]​-​1-​oxo-​2-​propen-​1-​yl]​oxy]​ethyl]​-​N,​N-​dimethyl-​ & chloride is expected to be not readily biodegradable.

 

In a supporting weight of evidence study from peer reviewed journal (Toshihide Saito et. al., 1984), biodegradation study was conducted for evaluating the percentage biodegradability of test substance. Activated sludge was used as a test inoculum obtained from municipal sewage. Test substance of conc. 500 mg/l was prepared and diluted as needed. The COD measurement was performed by the potassium dichromate reflux method based on Japanese Industrial Standards. In the BOD measurement, a sample solution was taken into a container. Then JIS-BOD testing solutions, i.e. 3 ml of A solution and 1 ml of B, C, D solutions were added to the sample solution, respectively. Then 5 ml of the supernatant of the municipal sewage activated sludge was added to the sample solution and diluted to 300 ml with water. Immediately, the BOD-time curve was recorded at 20~ using an Ohkura OM-200I type coulometer. The TOC measurement was carried out by a Yanagimoto TOC-ILW.BOD5, COD, ThOD and TOC value of the test chemical was determined to be 0.038, 1.73, 2.88 and 0.50 g/g, respectively. The BOD5/TOC ratio of test chemical was determined to be 0.08 (i.e. ranges in between 0.08-0.89), indicating that the test chemical is highly resistant to aerobic biodegradation. Thus, based on this value BOD5/TOC value, it can be concluded that test chemical is not readily biodegradable in nature.

 

For the test chemical, biodegradation study was conducted for 28 days for evaluating the percentage biodegradability of test substance. Concentration of inoculum i.e, sludge was 30 mg/l and initial test substance conc. used in the study was 100 mg/l, respectively. The percentage degradation of test substance was determined to be 0, 2 and 7% degradation by BOD, TOC removal and UV-Vis parameter in 28 days. Thus, based on percentage degradation, test chemical is considered to be not readily biodegradable in nature.

 

In a supporting weight of evidence study from authoritative database (2017),biodegradation experiment was conducted for 28 days for evaluating the percentage biodegradability of test substance. Concentration of inoculum i.e, sludge used was 30 mg/l and initial test substance conc. used in the study was 100 mg/l, respectively. The percentage degradation of test substance was determined to 0 and 1% by BOD, TOC removal and HPLC parameter in 28 days. Thus, based on percentage degradation, test chemical is considered to be not readily biodegradable in nature.

 

On the basis of above results for target chemical Reaction mass of 1-​Propanaminium, 3-​[[2-​cyano-​3-​[4-​(diethylamino)​phenyl]​-​1-​oxo-​2-​propen-​1-​yl]​oxy]​-​N-​[2-​[[2-​cyano-​3-​[4-​(diethylamino)​phenyl]​-​1-​oxo-​2-​propen-​1-​yl]​oxy]​ethyl]​-​N,​N-​dimethyl-​ & chloride (from modelling database, 2018), it can be concluded that the test substance Reaction mass of 1-​Propanaminium, 3-​[[2-​cyano-​3-​[4-​(diethylamino)​phenyl]​-​1-​oxo-​2-​propen-​1-​yl]​oxy]​-​N-​[2-​[[2-​cyano-​3-​[4-​(diethylamino)​phenyl]​-​1-​oxo-​2-​propen-​1-​yl]​oxy]​ethyl]​-​N,​N-​dimethyl-​ & chloride can be expected to be not readily biodegradable in nature.