Registration Dossier
Registration Dossier
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EC number: 213-382-0 | CAS number: 941-69-5
Biodegradation in water and sediment: simulation tests
Administrative data
Link to relevant study record(s)
Description of key information
This substance is not readily biodegradable, but this substance did not remain. The remaining product is estimated as the hydrolysis product.
1st study: BOD 6% at 28 day.
2nd study(OECD TG 301C,GLP): BOD = 19%, TOC = 32%, HPLC = 100% at 28 day
3rd study (OECD TG 302C, GLP); BOD = 0%, TOC = 21%, HPLC = 100% at 28 day
The hydfrolysis product is 4-oxo-4-(phenylamino)isocrotonic acid (cas no: 555-59-9).
This hydrolysis product is estimated to be further hydrolysed in activated sludge into maleic acid and aniline depened by pH value which products are readily biodegradable.
Key value for chemical safety assessment
- Half-life in freshwater:
- 3.01 h
- at the temperature of:
- 25 °C
- Half-life in freshwater sediment:
- 3 240 h
Additional information
This substance is not readily biodegradable, but this substance did not remain. The remaining product is estimated as the hydrolysis product.
1st study: BOD 6% at 28 day.
2nd study (OECD TG 301C,GLP): BOD = 19%, TOC = 32%, HPLC = 100% at 28 day
3rd study (OECD TG 302C, GLP); BOD = 0%, TOC = 21%, HPLC = 100% at 28 day
The hydrolysis product is 4-oxo-4-(phenylamino)isocrotonic acid (cas no: 555-59-9).
This hydrolysis product is estimated to be further hydrolysed in activated sludge into maleic acid and aniline depened by pH value which products are readily biodegradable.
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