Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Key value for chemical safety assessment

Skin sensitisation

Endpoint conclusion
Endpoint conclusion:
no adverse effect observed (not sensitising)
Additional information:

These results show that the test item tetraethylammonium perfluorobutane sulfonate has no sensitizing potential in mice after dermal application of up to and including a 50% concentration. No indication for a non-specific (irritant) activation was detected, too. Therefore, the concentration of 50% turned out to be the NOEL for the parameters investigated in this study with respect to skin sensitization.


Migrated from Short description of key information:
The modified Local Lymph Node Assay (IMDS) was performed on 24 female NMRI mice of the strain Crl:NMRI Br (6 animals/test item group and 6 control animals) to determine if the is any specific (sensitizing) or non-specific (irritant) stimulating potential of the test item tetraethylammonium perfluorobutane sulfonate

Respiratory sensitisation

Endpoint conclusion
Additional information:

no data


Migrated from Short description of key information:
no data

Justification for classification or non-classification

Due to the results of a LLNA in mice no skin sensitizing potential was found for tetraethylammonium perfluorobutane sulfonate after dermal application of up to and including 50% concentration.

Therefore a classification is not justified.