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Tetrasodium [2-({4-fluoro-6-[(2-{[4-fluoro-6-({5-(hydroxykappaO)-6-[(2-{[2-(hydroxy-kappaO)-5-sulfophenyl] diazenyl-kappaN1}-4,5-dimethoxyphenyl) diazenyl-kappaN2]-7-sulfo-2-naphthyl} amino)-1,3,5-triazin-2-yl] amino} propyl) amino]-1,3,5-triazin-2-yl} amino) benzene-1,4- disulfonato(6-)] cuprate(4-)
EC number: 466-470-8 | CAS number: -
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Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
FAT 40825/A was not biodegradable under the test conditions within 28 days.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
Test reports for ready biodegradation and inherent biodegradation tests are available. The results are summarized as below:
The test item FAT 40825/A was investigated for its ready biodegradability in a manometric respirometry test over 28 days according to EU Commission Directive 92/69 EEC, C.4-D (1992) and OECD Guideline for Testing of Chemicals No. 301 F (1992).
The biochemical oxygen demand (BOD) of the test item FAT 40825/A in the test media was in the range of the inoculum controls throughout the entire 28-day exposure period. Consequently, FAT 40825/A was not readily biodegradable under the test conditions within 28 days.
The test item FAT 40825/A was investigated for its potential (inherent) ultimate biodegradability in a Zahn-Wellens / EMPA test over 28 days, based on the OECD Guideline for Testing of Chemicals, No. 302 B (1992) and the EU Commission Directive 88/302/EEC, Part C.9 (1988). In the test flasks, containing the test item and activated sludge (inoculum), the mean concentration of DOC (dissolved organic carbon) varied between 94 and 101 mg/L over the 28-day exposure period, and was not significantly different from the initial mean DOC concentration of 101 mg/L, measured on Day 0 (starting value after 3 hours of exposure). Expressed as percentage DOC-removal, mean values in the range from 1 to 7 % were noted. FAT 40825/A was not biodegradable under the test conditions within 28 days.
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