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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint:
acute toxicity: inhalation
Data waiving:
exposure considerations
Justification for data waiving:
the study does not need to be conducted because exposure of humans via inhalation is not likely taking into account the vapour pressure of the substance and/or the possibility of exposure to aerosols, particles or droplets of an inhalable size
Justification for type of information:
JUSTIFICATION FOR DATA WAIVING
Exposure to Hydroxybenzomorpholine via the inhalation route is unlikely. Indeed, The relatively high melting temperature (113.2 °C) and the low vapour pressure (1.66 x 10 -3 Pa at 20°C), indicate that it is not likely that Hydroxybenzomorpholine vapours will reach the nasopharyngeal region or subsequently the tracheobronchial or pulmonary region. In addition, the relatively high average median particle size (143μm) prevents particles to be inhaled, as these have an aerodynamic diameter higher than 100 μm. Thus, Hydroxybenzomorpholine has a low potential to be inhaled.

Data source

Materials and methods

Results and discussion

Applicant's summary and conclusion