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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Link to relevant study record(s)

Description of key information

Key value for chemical safety assessment

Bioaccumulation potential:
no bioaccumulation potential

Additional information

No specific study was performed on the absorption, distribution, metabolism and/or excretion (ADME) of WS400123, a complex mixture of components. Low to moderate absorption and systemic availability of WS400123 or some of its components after oral exposure has been concluded from small, non-adverse changes observed in some blood parameters in the subacute and subchronic toxicity studies in rats. Dermal absorption has been concluded from the sensitization response attained in a Local Lymph Node Assay (LLNA) in mice at non-irritating test concentrations of WS400123.

Exposure of humans to WS400123 by the inhalation route is unlikely, because of its very low vapour pressure (1 x 10-3Pa at 25°C), its decomposition at high temperature without boiling (above ca. 150°C) and because it is a highly viscous liquid.

All available study results gave no indication regarding the metabolic pathway, distribution or excretion of WS400123.

Bioaccumulation was not investigated, but in view of its Log10Pow< +1, WS400123 is not considered to have a bioaccumulation potential.