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Environmental fate & pathways

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Description of key information

Adsorption and desorption:

The Koc value for chemicalN-(4-{bis[4-(dimethylamino)phenyl]methylidene}-N,N-dimethylcyclohexa-2,5-dien-1-iminium chloride is estimated by using Structure estimation method based on molecular connectivity indices. The estimated Koc value is 610000 dimensionless and log Koc is 5.7853. Based on this value,N-(4 -{bis[4-(dimethylamino)phenyl]methylidene}-N,N-dimethylcyclohexa-2,5-dien-1-iminium chloride is expected  to have very strong sorption to soil and sediment and therefore have negligible migration potential to ground water.

Additional information

Adsorption and desorption:

Different studies results for target chemical N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride( CAS no.548 -62 -9) and supporting study for its read across chemical for adsorption endpoint were reviewed as follow.

 

The Koc value for chemical N-(4-{bis[4-(dimethylamino)phenyl]methylidene}-N,N-dimethylcyclohexa-2,5-dien-1-iminium chloride is estimated by using Structure estimation method based on molecular connectivity indices . The estimated Koc value is 610000 dimensionless and log Koc is 5.7853.

 

 Another study was done and Soil Adsorption Coefficient i.e Koc value of N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride (CAS no. 548 -62-9) was estimated using EPI suite, 2017 KOCWIN Program (v2.00) as 467800 L/kg(log Koc=5.670)  by means of MCI method at 25 deg.C. T

 

 In a supporting weight of evidence study the Koc value for read across chemical4-[4-(dimethylamino)benzenecarboximidoyl]-N,N-dimethylaniline hydrochloride( CAS No. 2465-27-2)was estimated using structure estimation method. The estimated Koc value is 50000 dimensionless and log Koc is 4.6989.

 

On the basis of above overall results for target chemical N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride( CAS no.548 -62 -9) (from HSDB and EPI suite, 2017), it can be concluded that the Koc value of test substance N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride ranges from 50000 to 610000 and log koc ranges from 4.69 to 5.7853 indicating that the test chemical of N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien-1 - ylidene)-N-methylmethanaminium chloride has very strong sorption to soil and sediment and therefore have negligible to negligible migration potential to groundwater