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Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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Description of key information

No bioaccumulation is expected

Key value for chemical safety assessment

BCF (aquatic species):
0.5 dimensionless

Additional information

According to the REACH Regulation, Annex IX, column II, the substance does not need to be tested due to the low potential for bioaccumulation (log Kow < 3) and a low potential to cross biological membranes (high molecular weight, high polarity); furthermore direct and indirect exposure of the aquatic compartment is unsuitable.

The Bioconcentration Factor (BCF) value was calculated using BCFBAF v3.01 tool, an application contained in the EpiSuite 4.1 [1], using the following smile notation: O=S(=O)(O)c1cccc(c1)Nc2nc(nc(NCCO)n2)Nc6ccc(/C=C/c3ccc(cc3S(=O)(=O)O)Nc4nc(nc(NCCO)n4)Nc5cccc(c5)S(=O)(=O)O)c(c6)S(=O)(=O)O

The BCF estimated value from regression-based method is 0.500 (BCF = 3.162 L/kg wet-wt), in agreement with the common value of non bioaccumulative substances.

[1] EpiSuite is the suite of physical/chemical property and environmental fate estimation programs developed by the EPA’s Office of Pollution Prevention Toxics and Syracuse Research Corporation (SRC).