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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Description of key information

Information from two Human Repeated Insult Patch Tests evaluating the skin sensitisation of the TEA-Esterquats is available. There was no evidence 
for a skin sensitisation potential from this studies involving a total of 208 volunteers.

Additional information

The human volunteer studies were conducted in line with the respective and broadly accepted testing protocol according to the method of Stotts (1980) under the supervision of expert dermatologists.


None of the 2 studies involving exposures of a total of 208 human volunteers to fully saturated TEA-Esterquat was considered to induce a skin sensitisation response in humans.