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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 201-603-3 | CAS number: 85-41-6
Phototransformation in soil
Administrative data
- Endpoint:
- phototransformation in soil
- Type of information:
- experimental study
- Adequacy of study:
- other information
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
Data source
Referenceopen allclose all
- Reference Type:
- publication
- Title:
- Effects of light on the organophosphorus fungicide ditalimfos and two degradation products examined in rainwater and on soil surface in a long-term study
- Author:
- Allmaier GM and Schmid ER
- Year:
- 1 986
- Bibliographic source:
- Bodenkultur 37 (2), 177-186.
- Reference Type:
- secondary source
- Title:
- Phthalimide - CAS No: 85-41-6
- Author:
- OECD SIDS
- Year:
- 2 005
- Bibliographic source:
- SIDS Initial Assessment Report for 20th SIAM, UNEP Publications
Materials and methods
- Principles of method if other than guideline:
- Method: radiation apparatus as described by Allmaier and Schmid (1985)
- GLP compliance:
- no
Test material
- Reference substance name:
- Phthalimide
- EC Number:
- 201-603-3
- EC Name:
- Phthalimide
- Cas Number:
- 85-41-6
- Molecular formula:
- C8H5NO2
- IUPAC Name:
- 1H-isoindole-1,3(2H)-dione
- Details on test material:
- Test Substance: Ditalimfos, > 99.5 % purity, purchased from Dow Chemical Company
Phthalimide was identified to be a degradation product of Ditalimfos, and its degradation was also followed during the study.
Constituent 1
Study design
- Light source:
- other: 5 daylight-lamps of different thermoluminescence
- Light spectrum: wavelength in nm:
- > 290
Results and discussion
- Transformation products:
- yes
Any other information on results incl. tables
The same main degradation products were found regardless of the light conditions: 0,0-diethyl-phosphoro-amidothioate (main product) and phthalimide.
Ditalimfos t1/2 = 428 h (illuminated soil)
Ditalimfos t1/2 = 442 h (nonilluminated soil)
Phthalimide reach the maximum after 12 days.
Phthalimide could not be detected after 48 days in both soils. Ditalimfos was not detectable in both test systems after 96 days
Applicant's summary and conclusion
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.
