Registration Dossier
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EC number: 470-080-3 | CAS number: -
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
1-((2-Butyloctyloxymethyl)-2-(3,4-dihydro-isoquinolinium-2-yl)ethyl)sulfate was tested in a carbon dioxide evolution test according to OECD guideline 301B. The biodegradation of the test item is 26 % (28th day). In this test, the test substance is considered partly or moderately biodegradable, but the test substance is considered not readily biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
1-((2-Butyloctyloxymethyl)-2-(3,4-dihydro-isoquinolinium-2-yl)ethyl)sulfate was tested in a carbon dioxide evolution test according to OECD guideline 301B. The test was left running for 28 days. Aniline was chosen as positive control. Biodegradation of the positive control was 99.7% (28th day). The biodegradation of the test item is 26 % (28th day). In this test, the test substance is considered partly or moderately biodegradable, but the test substance is considered not readily biodegradable.
An insufficient biodegradation was measured ; the test substance may nevertheless be inherently biodegradable. This has to be shown with the help of further investigations, for example with a Semi Continuous Activated Sludge (SCAS) Test for adaptation of the
biological system to the test substance. Subsequent to this preliminary a carbon dioxide evolution test with adapted microorganisms can be performed .
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