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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Biodegradation in water

Biodegradability of 4-amino-N-(4-aminophenyl)-N-(4-methylenecyclohexa-2,5-dien-1-ylidene)anilinium acetate (CAS no. 6035-94-5) is predicted using OECD QSAR toolbox version 3.3 with log Kow as the primary descriptor. Test substance undergoes 0.40 % degradation by BOD in 28 days. Thus, based on percentage degradation, the test chemical 4-amino-N-(4-aminophenyl)-N-(4-methylenecyclohexa-2,5-dien-1-ylidene)anilinium acetate was estimated to be not readily biodegradable in water.

Biodegradation in water and sediment

Estimation Programs Interface (EPI Suite, 2017) prediction model was run to predict the half-life in water and sediment for the test compound 4-amino-N-(4-aminophenyl)-N-(4-methylenecyclohexa-2,5-dien-1-ylidene)anilinium acetate (CAS No. 6035-94-5). If released in to the environment, 5.52 % of the chemical will partition into water according to the Mackay fugacity model level III and the half-life period of test chemical in water is estimated to be 37.5 days (900 hrs). The half-life (60 days estimated by EPI suite) indicates that the chemical is not persistent in water whereas the half-life period of test chemical in sediment is estimated to be 337.5 days (8100 hrs). However, as the percentage release of test chemical into the sediment is 34.7 %, indicates that test chemical is persistent in sediment.

Biodegradation in soil

The half-life period of 4-amino-N-(4-aminophenyl)-N-(4-methylenecyclohexa-2,5-dien-1-ylidene)anilinium acetate (CAS No. 6035-94-5) in soil was estimated using Level III Fugacity Model by EPI Suite version 4.1 estimation database (EPI suite, 2017). If released into the environment, 59.8 % of the chemical will partition into soil according to the Mackay fugacity model level III. The half-life period of test chemical in soil is estimated to be 75 days (1800 hrs). Based on this half-life value of test chemical, it is concluded that the chemical is not persistent in the soil environment.

Additional information

Biodegradation in water

Following different studies includes predicted data and experimental study for the target chemical and the structurally similar read across to conclude the biodegradation in water of 4-amino-N-(4-aminophenyl)-N-(4-methylenecyclohexa-2,5-dien-1-ylidene)anilinium acetate (CAS No. 6035-94-5) in environment.

 

Biodegradability of 4-amino-N-(4-aminophenyl)-N-(4-methylenecyclohexa-2,5-dien-1-ylidene)anilinium acetate (CAS no. 6035-94-5) is predicted using OECD QSAR toolbox version 3.3 with log Kow as the primary descriptor. Test substance undergoes 0.40 % degradation by BOD in 28 days. Thus, based on percentage degradation, the test chemical 4-amino-N-(4-aminophenyl)-N-(4-methylenecyclohexa-2,5-dien-1-ylidene)anilinium acetate was estimated to be not readily biodegradable in water.

 

Similar estimated data from Estimation Programs Interface Suite (EPI suite, 2017) was run to predict the biodegradation potential of the 4-amino-N-(4-aminophenyl)-N-(4-methylenecyclohexa-2,5-dien-1-ylidene)anilinium acetate (CAS no. 6035 -94 -5) 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 4-amino-N-(4-aminophenyl)-N-(4-methylenecyclohexa-2,5-dien-1-ylidene)anilinium acetate is expected to be not readily biodegradable.

 

The predicted data is supported by the experimental study of structurally similar read across 2, 2'-ethene-1,2-diylbis(5-aminobenzenesulfonic acid) ( CAS no. 81-11-8) from the J-check indicates that The test chemical 2, 2'-ethene-1,2-diylbis(5-aminobenzenesulfonic acid) ( CAS no. 81-11-8) was subjected to biodegradation test by taking sludge as a inoculums at 30 mg/L concentration . Biodegradation was analysed by using two parameters BOD and HPLC. The initial concentration of test chemical was 100 mg/L and study design is of standard type. After 4 weeks( 28 days) test chemical showed 0% and 2 % biodegradation by BOD and HPLC parameters respectively so it is concluded that it is not readily biodegradable

 

Further it is supported by the experimental study for the structurally similar read across 3,3'-Sulphonyldianiline ( CAS no. 599 -61 -1) from the

J-check indicates that

The test chemical 3,3'-Sulphonyldianiline ( CAS no. 599 -61 -1) was subjected to biodegradation test by taking sludge as a inoculums at 30 mg/L concentration . Biodegradation was analysed by using three parameters BOD,TOC and HPLC. The initial concentration of test chemical was 100 mg/L and study design is of standard type. After 4 weeks( 28 days) test chemical showed 0%, 0% and 1 % biodegradation by BOD, TOC and HPLC parameters respectively so it is concluded that it is not readily biodegradable

 

On the basis of above results for target chemical 4-amino-N-(4-aminophenyl)-N-(4-methylenecyclohexa-2,5-dien-1-ylidene)anilinium acetate (CAS No. 6035-94-5) (from EPI suite) and for its read across chemical (from J-CHeck 2017) it can be concluded that the chemical

Following different studies includes predicted data and experimental study for the target chemical and the structurally similar read across to conclude the biodegradation in water of 4-amino-N-(4-aminophenyl)-N-(4-methylenecyclohexa-2,5-dien-1-ylidene)anilinium acetate (CAS No. 6035-94-5) in environment.

 

Biodegradability of 4-amino-N-(4-aminophenyl)-N-(4-methylenecyclohexa-2,5-dien-1-ylidene)anilinium acetate (CAS no. 6035-94-5) is predicted using OECD QSAR toolbox version 3.3 with log Kow as the primary descriptor. Test substance undergoes 0.40 % degradation by BOD in 28 days. Thus, based on percentage degradation, the test chemical 4-amino-N-(4-aminophenyl)-N-(4-methylenecyclohexa-2,5-dien-1-ylidene)anilinium acetate was estimated to be not readily biodegradable in water.

 

Similar estimated data from Estimation Programs Interface Suite (EPI suite, 2017) was run to predict the biodegradation potential of the 4-amino-N-(4-aminophenyl)-N-(4-methylenecyclohexa-2,5-dien-1-ylidene)anilinium acetate (CAS no. 6035 -94 -5) 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 4-amino-N-(4-aminophenyl)-N-(4-methylenecyclohexa-2,5-dien-1-ylidene)anilinium acetate is expected to be not readily biodegradable.

 

The predicted data is supported by the experimental study of structurally similar read across 2, 2'-ethene-1,2-diylbis(5-aminobenzenesulfonic acid) ( CAS no. 81-11-8) from the J-check indicates that The test chemical 2, 2'-ethene-1,2-diylbis(5-aminobenzenesulfonic acid) ( CAS no. 81-11-8) was subjected to biodegradation test by taking sludge as a inoculums at 30 mg/L concentration . Biodegradation was analysed by using two parameters BOD and HPLC. The initial concentration of test chemical was 100 mg/L and study design is of standard type. After 4 weeks( 28 days) test chemical showed 0% and 2 % biodegradation by BOD and HPLC parameters respectively so it is concluded that it is not readily biodegradable

 

Further it is supported by the experimental study for the structurally similar read across 3,3'-Sulphonyldianiline ( CAS no. 599 -61 -1) from the

J-check indicates that

The test chemical 3,3'-Sulphonyldianiline ( CAS no. 599 -61 -1) was subjected to biodegradation test by taking sludge as a inoculums at 30 mg/L concentration . Biodegradation was analysed by using three parameters BOD,TOC and HPLC. The initial concentration of test chemical was 100 mg/L and study design is of standard type. After 4 weeks( 28 days) test chemical showed 0%, 0% and 1 % biodegradation by BOD, TOC and HPLC parameters respectively so it is concluded that it is not readily biodegradable

 

On the basis of above results for target chemical 4-amino-N-(4-aminophenyl)-N-(4-methylenecyclohexa-2,5-dien-1-ylidene)anilinium acetate (CAS No. 6035-94-5) (from EPI suite) and for its read across chemical (from J-CHeck 2017) it can be concluded that the chemical 4-amino-N-(4-aminophenyl)-N-(4-methylenecyclohexa-2,5-dien-1-ylidene)anilinium acetate (CAS No. 6035-94-5) is not biodegradable in water.

Biodegradation in water and sediment

Estimation Programs Interface (EPI Suite, 2017) prediction model was run to predict the half-life in water and sediment for the test compound 4-amino-N-(4-aminophenyl)-N-(4-methylenecyclohexa-2,5-dien-1-ylidene)anilinium acetate (CAS No. 6035-94-5). If released in to the environment, 5.52 % of the chemical will partition into water according to the Mackay fugacity model level III and the half-life period of test chemical in water is estimated to be 37.5 days (900 hrs). The half-life (60 days estimated by EPI suite) indicates that the chemical is not persistent in water whereas the half-life period of test chemical in sediment is estimated to be 337.5 days (8100 hrs). However, as the percentage release of test chemical into the sediment is 34.7 %, indicates that test chemical is persistent in sediment.

Biodegradation in soil

The half-life period of 4-amino-N-(4-aminophenyl)-N-(4-methylenecyclohexa-2,5-dien-1-ylidene)anilinium acetate (CAS No. 6035-94-5) in soil was estimated using Level III Fugacity Model by EPI Suite version 4.1 estimation database (EPI suite, 2017). If released into the environment, 59.8 % of the chemical will partition into soil according to the Mackay fugacity model level III. The half-life period of test chemical in soil is estimated to be 75 days (1800 hrs). Based on this half-life value of test chemical, it is concluded that the chemical is not persistent in the soil environment.