Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: - | CAS number: -
Endpoint summary
Administrative data
Description of key information
Biodegradation in water: screening test
An experimental study was performed to assess the ready biodegradability of the test item in an aerobic aqueous medium according the OECD Guidelines No. 301B and GLP. The test material attained 26% degradation after 28 days therefore is not considered to be readily biodegradable.
Biodegradation in water and sediment
In an OECD 308 study, conducted according to GLP, the test material dissipated rapidly from the water of both aquatic sediment systems, with DT50 values of 2.6 days (Calwich Abbey Lake) and 10.4 days (Emperor Lake). The DT50 value at 12°C in the sediment phase of Calwich Abbey Lake was 811 days, based on two sampling intervals. The DT50 value for the decline in the sediment phase of Emperor Lake could not be calculated, as the test material (as % applied parent) continued to increase until the last sampling interval. Decline in the overall aquatic sediment system was slow and corresponded to DT50 values of 657 days (Calwich Abbey Lake) and 636 days (Emperor Lake). Mostly parent compound was detected in the water organic extracts and sediment extracts throughout the study, with minor amounts of unidentified polar material (up to a mean value of 5.6% applied radioactivity at time zero).
Due to the low solubility of the test material and rapid partitioning from the aqueous phase to the sediment, aerobic mineralisation in surface water – simulation biodegradation testing according to OECD Testing Guideline No. 309 is considered technically not feasible.
Biodegradation in soil
In an OECD 307 study, conducted according to GLP, the mean distribution and recovery of radioactivity ranged from 99.7 to 106.2% AR in Cuckney soil, 93.9 to 103.4% AR in Drayton soil, 97.6 to 107.2% AR in Elmton soil, and 95.2 to 106.2% AR in Calke soil. Low levels of radioactivity were detected in the bound residues (mean values =10.6% applied radioactivity) and mean mineralization of the test item to CO2 was less than or equal to 0.9% applied radioactivity. There was little or no evidence for degradation of test material in soil at 12 deg C, under aerobic conditions, and kinetic analysis of the data was therefore considered inappropriate.
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
