Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Administrative data

Endpoint:
phototransformation in air
Type of information:
(Q)SAR
Adequacy of study:
supporting study
Justification for type of information:
QSAR prediction: migrated from IUCLID 5.6

Data source

Referenceopen allclose all

Reference Type:
review article or handbook
Title:
Unnamed
Year:
2009
Report date:
2009
Reference Type:
secondary source
Title:
Unnamed
Year:
1999

Materials and methods

Principles of method if other than guideline:
Method data are not available as the report details are unpublished.

GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Warfarin
EC Number:
201-377-6
EC Name:
Warfarin
Cas Number:
81-81-2
Molecular formula:
C19H16O4
IUPAC Name:
4-hydroxy-3-(3-oxo-1-phenylbutyl)-2H-chromen-2-one

Results and discussion

Dissipation half-life of parent compoundopen allclose all
DT50:
2.015 h
Test condition:
(Ozone); QSAR estimation, Atkinson method, AOPWIN version 1.90
DT50:
2.4 h
Test condition:
(OH); (12-h day, 1.5E6 OH/cm³); QSAR estimation, Atkinson method, AOPWIN version 1.90
DT50:
7.2 h
Test condition:
(OH); (24-h day, 0.5E6 OH/cm³); QSAR estimation, Atkinson method, AOPWIN version 1.90

Applicant's summary and conclusion

Conclusions:
An atmospheric half life of 2.4 hours for a 24 hour day was calculated according to AOP model