Registration Dossier
Registration Dossier
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EC number: 407-560-9 | CAS number: 107934-68-9 CAF
Endpoint summary
Administrative data
Description of key information
No biodegradation observed.
Additional information
Two tests on the biodegradability of 4,4´-(9H-fluoren-9-ylidene)bis(2-chloroaniline) (CAS No. 107934-68-9) are available.
The first study was conducted according to OECD 301D using filter paper as carrier (Douglas, 1991). There was no biodegradation (0%) observed within 28 days.
The second test was conducted according to OECD 301F (2017). There was barely any biodegradation (2%) observed within 28 days.
Finally, A QSAR screening using BIOWIN v4.10 on 4,4´-(9H-fluoren-9-ylidene)bis(2-chloroaniline) indicated the substance even to be recalcitrant to ultimate biodegradation. Level III Fugacity modeling (not explicitely presented in this dossier) indicated soil and sediment as target compartments for environmental distribution (soil 53%, sediment 47%) for this substance with half-lives of 360 days for soil and 1620 days for sediment. Therefore, with regard to the PBT and vPvB criteria as presented in the Guidance on Information Requirements and Chemical Safety Assessment R.11 PBT-assessment (ECHA 2014), 4,4´-(9H-fluoren-9-ylidene)bis(2-chloroaniline) (CAS No. 107934-68-9) is regarded as very persistent (vP).
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