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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

A ready biodegradability study was conducted using a DOC die away test according to OECD 301 to investigate the aerobic degradability of Polyox PX. The DOC concentration was measured for each period (0, 7, 14,21 and 28 days) in each of the inoculated flasks used for the test and control samples. According to OECD guidelines for testing chemicals, a test compound is regarded as easily biodegradable if the loss of DOC within 28 days is greater than 70 %. The pass value has to be reached in a 10-day window within the 28-day period of the test.


Under the terms of this study Polyol PX was not found to be readily biodegradable as DOC removal levels only reached 23% by the end of the study period. As such, Reaction mass of 1,3-Propanediol, 2-(hydroxymethyl)-2-[(methoxymethoxy)methyl]- and 1,3-dioxane-5,5-dimethanol cannot be assumed to be readily removed by biological processes in the STP, soil or sediment.

Additional information