Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

There is no evidence from epidemiological or animals studies that nitrous oxide exhibit a sensitising potential (MAK value documentation, 1993).

Key value for chemical safety assessment

Justification for classification or non-classification

Classification, Labeling, and Packaging Regulation (EC) No 1272/2008


The criteria for classification for sensitisation according to Regulation (EC) No 1272/2008, as amended for fifteenth time in Regulation (EU) No 2020/1182, are not met.