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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

The skin sensitizing potential of y-Butyrolactone (GBL) was assessed using the radioactive Murine Local Lymph Node Assay and was determined not to be a skin sensitizer (BASF SE, 2010).

Migrated from Short description of key information:

Not a sensitiser

Respiratory sensitisation

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

y-Butyrolactone (GBL) has not been specifically tested for respiratory sensitization but the many years of human experience handling this substance, along with information on metabolism and the absence of a skin sensitisation potential, provides sufficient evidence that it is not a respiratory sensitiser.

Migrated from Short description of key information:

Not expected to be a sensitiser

Justification for classification or non-classification

Based on the results of a Local Lymph node assay gamma-butyrolactone is judged not to be a skin sensitizer under the EU DSD criteria (EU Directive 67/548/EEC) or the EU CLP criteria (EU Regulation 1272/2008).