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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

The test substance is considered to be readily biodegradable based on the results of a study equivalent to OECD guideline 301 C and the results of a QSAR calculation using EpiSuite v.4.11.

Additional information

The ready biodegradability of the test item was assessed over a 28 day period in a study equivalent to OECD guideline 301 C (BASF, 1989). The test item was tested at a concentration of 103 mg/L, corresponding to total organic carbon (TOC) of 632 mg/g. The test item was exposed to an aqueous system of activated sludge of a municipal sewage treatment plant as an inoculum for 28 days. The biodegradation was followed by the oxygen uptake (biological oxygen demand, BOD) during exposure. Aniline was tested as a reference substance and showed a degradation of 62% after 28 days. Under the conditions of this test the test substance is readily biodegradable as the pass level of >60% degradation was reached within the 28 days period of the study.

This result is supported by a calculation using EPISuite v.4.11. Based on the results of BIOWIN v.4.11 the test substance is predicted to be readily biodegradable.

Additionally, in a Zahn-Wellens Test equivalent to OECD guideline 302 B the inherent biodegradability of the test item was investigated. Under the conditions of this test, the test substance showed a degradation of >90% after 28 days.