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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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Environmental fate & pathways

Biodegradation in water and sediment: simulation tests

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Administrative data

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Description of key information

Half life period of Benzenemethanaminium, N-ethyl-N-(4-((4-(ethyl((3-sulfophenyl)methyl)amino)phenyl)(4-hyd- roxy-2-sulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-3-sulf- o-, hydroxide, inner salt, disodium salt, in water is observed to be 180  days (4.32e+003 hrs.) while in sediment it is 1620.8333 days (3.89e+004 hrs). Based on these half life values of Benzenemethanaminium, N-ethyl-N-(4-((4-(ethyl((3-sulfophenyl)methyl)amino)phenyl)(4-hyd- roxy-2-sulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-3-sulf- o-, hydroxide, inner salt, disodium salt, it is concluded that the chemical is very persistent in water and sediment.

Key value for chemical safety assessment

Half-life in freshwater:
180 d
at the temperature of:
25 °C
Half-life in freshwater sediment:
1 620.833 d
at the temperature of:
25 °C

Additional information

Half life period of Benzenemethanaminium, N-ethyl-N-(4-((4-(ethyl((3-sulfophenyl)methyl)amino)phenyl)(4-hyd- roxy-2-sulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-3-sulf- o-, hydroxide, inner salt, disodium salt, in water is observed to be 180 days (4.32e+003 hrs.) while in sediment it is 1620.8333 days (3.89e+004 hrs). Based on these half life values of Benzenemethanaminium, N-ethyl-N-(4-((4-(ethyl((3-sulfophenyl)methyl)amino)phenyl)(4-hyd- roxy-2-sulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-3-sulf- o-, hydroxide, inner salt, disodium salt, it is concluded that the chemical is very persistent in water and sediment.