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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Validated QSAR model
Justification for type of information:
QSAR prediction: migrated from IUCLID 5.6

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011
Report date:
2011

Materials and methods

Principles of method if other than guideline:
Calculation based on AOPWIN v1.92, Estimation Programs Interface Suite™ for Microsoft® Windows v 4.10. US EPA, United States Environmental Protection Agency, Washington, DC, USA.
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Diisodecyl maleate
EC Number:
258-806-5
EC Name:
Diisodecyl maleate
Cas Number:
53817-61-1
Molecular formula:
C24H44O4
IUPAC Name:
1,4-bis(2-methylnonyl) (2E)-but-2-enedioate
Details on test material:
- Name of test material (as cited in study report): Diisodecyl maleate
- Analytical purity: not applicable

Study design

Estimation method (if used):
PHOTOCHEMICAL REACTION WITH OH RADICALS
- Concentration of OH radicals: 0.5E+06 radicals/cm3
- Degradation rate constant: 32.9833 (cis-isomer) - 33.9143 (trans-isomer) E-12 cm3/molecule-sec
- Temperature for which rate constant was calculated: 25 °C
- Computer programme: AOPWIN v1.92

Results and discussion

Dissipation half-life of parent compoundopen allclose all
DT50:
11.67 h
Test condition:
calculation based on a 24 h day; cis-isomer
DT50:
11.35 h
Test condition:
calculation based on a 24 h day; trans-isomer

Any other information on results incl. tables

For detailed description on the model and its applicability, see "Any other information on materials and methods incl. tables".

Result refers to the uncharged molecule. The estimation is based on a 24 hour day.

Applicant's summary and conclusion