Registration Dossier
Registration Dossier
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EC number: 237-198-5 | CAS number: 13684-56-5
Phototransformation in water
Administrative data
Link to relevant study record(s)
Description of key information
In the table below all available studies are listed. For some studies only the results are presented since they are not considered relevant due to the reasons given under “Assessment”. All available studies have been evaluated within the scope of Plant Protection Regulation in the respective Draft Renewal Assessment Report (DAR) under Regulation (EC) 1107/2009.
| Test type | Result | Assessment | Reference |
| Included in physico-chemical properties study | Stable for 15 days at 25 °C and pH 4 | Valid study included in DAR | Hogg (1992) |
| Phototransformation in buffer | Stable for 10 days at 23 °C pH 4 | Valid study included in DAR | Tschampel (1992) |
| Carried out following SETAC and draft OECD guidelines Direct photolysis in aqueous solutions | Stable at pH 5 at 19 °C | Hydrolysis observed at pH 7 and 9. Valid study included in DAR | van Dijk (2004) |
| Carried out to OECD 316 guidelines Aquatic photodegradation | DT50 estimated 15.6 to 22 days in spring and summer. Includes calculation of quantum yield | Valid study included in DAR | Hennecke (2002) |
| Carried out to OECD 316 guidelines Indirect photolysis | Rapid breakdown at pH 8 in light and dark samples | Valid study included in DAR | Fitzmaurice (2004) |
| Carried out to EPA provisional and draft OECD guidelines Phototransformation in synthetic natural water | Stable for 18 days at 23 °C pH 5 | Some indirect photodegradation observed | Tschampel (1994) |
| Direct phototransformation | No result | Not valid in DAR due to deficiencies in study design | Klehr (1981) |
| Direct phototransformation | No result | Acetone used as a solvent- can act as a photosensitizer. Not valid in DAR | Schanne (1994) |
Key value for chemical safety assessment
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.
