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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 245-740-7 | CAS number: 23564-05-8
Endpoint summary
Administrative data
Description of key information
Hydrolysis
The test item showed to be stable to hydrolysis at ambient temperature (22 °C) and pH-values (5 – 7). The half-life of the test item at 25 °C was determined to be 867, 36 and 0.7 days at pH 5, 7 and 9, respectively. Under environmental conditions (pH 7 and 12 °C) the test item's hydrolysis constant was calculated to be 0.00028356 h-1 and the DT50 to be 2444.44 h or 101.85 d.
Biodegradation
Biodegradation in water: screening tests
The ready biodegradability test of the test item was conducted according to OECD 301 C and the percentage biodegradation obtained from the BOD measurement was 4 % (n = 3, mean value).
Biodegradation in water and sediment: simulation tests - Surface water
The test item degraded quickly in non-sterilised units, with a degradation rate DT50 value of < 3 days at application rates of 10 and 95 µg/L. Degradation in sterile units was observed, but to a lesser extent as 67 % test item was measured at 2 days after treatment (DAT).
Biodegradation in water and sediment: simulation tests - sediment
In the river system, the DT50 value obtained for 14C-labelled test item was 1.6 days for the disappearance from the water phase and the total system. The corresponding DT90 value was 5.4 days.
In the pond system, the DT50 value obtained for 14C-labelled test item were 3.5 days for the dissipation from the water phase and the total system. The corresponding DT90 value was 11.6 days.
The mineralization of the test item, i.e. the formation of 14CO2, accounted for a maximum of 1.3 % and 1.6 %/5.2 % of the applied radioactivity for the river (day 100) and pond systems (day 100/301), respectively. Other volatile compounds did not exceed 0.1 % of the applied radioactivity.
Biodegradation in soil (n=3 (SFO))
DT50 Soil I = 0.44 days
DT50 Soil II = 0.70 days
DT50 Soil III = 0.59 days
DT90 Soil I = 1.5 days
DT90 Soil II = 2.3 days
DT90 Soil III = 1.9 days
Mineralisation (14CO2): 7.3 – 25.7 % (day 120) (source: 815051, Völkl S. 2002)
Bioaccumulation
The study does not need to be conducted because the substance has a low potential for bioaccumulation based on log Kow <=3 and a low potential to cross biological membranes.
Adsorption/desorption
The mean adsorption coefficient of the test item in 4 different soils at 20 °C was determined to be 99 L/kg. The Freundlich isotherm constants KF and KFoc were determined in all 4 soil types. The mean KFoc was determined to be 77 ± 16.
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.
