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Registry of SVHC intentions until outcome

The registry of SVHC intentions until outcome aims to make interested parties aware of the substances for which an SVHC dossier is planned to be submitted to ECHA.

Member States, or ECHA at the request of the European Commission, may propose a substance to be identified as a substance of very high concern (SVHC) by preparing a dossier in accordance with the requirements set out in Annex XV to REACH.

Interested parties can follow the progress of a proposal through the SVHC identification process, from the notification of the intention until the outcome. The advance notice gives interested parties time to prepare for commenting later in the process.

Anyone with relevant information on the identity or hazard properties of the substance may submit such information during the public consultation.

Perfluorobutane sulfonic acid (PFBS), its salts and related substances

EC / List no: - CAS no: -
Further substance information
This intention also covers the following precursors as transformation products: 1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulphonyl fluoride (EC 206-792-6, CAS 375-72-4), 1,1,2,2,3,3,4,4,4-nonafluoro-N-(2-hydroxyethyl)-N-methylbutane-1-sulphonamide (EC 252-043-1, CAS 34454-97-2) and N,N,N-triethylethanaminium 1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonate (CAS 25628-08-4) and other related sulfonyl- functionalised substances.
CLP Annex VI index number
Identification ongoing
Date of intention
Expected date of submission
Submitted for accordance check
Withdrawal date
Equivalent level of concern having probable serious effects to human health (Article 57(f) - human health)
Equivalent level of concern having probable serious effects to the environment (Article 57(f) - environment)
Start of public consultation
End of public consultation
Public consultation document
RCOM (Comments received)
Year of MSC agreement
MSC Agreement
Date of MSC agreement
Support documents
MSC Opinion
Date of MSC opinion
Minority position
Date of inclusion in Candidate List
Latest update

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Group members
This group of substance has the following member substances:
Name EC / List no. CAS no. Association
N,N,N,-triethylethanaminium 1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonate 700-536-1 25628-08-4 Expert judgement
1,1,2,2,3,3,4,4,4-nonafluoro-N-(2-hydroxyethyl)-N-methylbutane-1-sulphonamide 252-043-1 34454-97-2 Expert judgement
1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulphonic acid 206-793-1 375-73-5 Expert judgement
1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulphonyl fluoride 206-792-6 375-72-4 Expert judgement

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