Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
phototransformation in air
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Scientifically acceptable method

Data source

Reference
Reference Type:
other: EPIWIN calculation
Title:
Unnamed
Year:
2009
Report date:
2009

Materials and methods

Principles of method if other than guideline:
calculated using SRC AOP v1.92

Test material

Constituent 1
Chemical structure
Reference substance name:
Reaction mass of ethyl (2S,3S)-3,4-dibromo-2-methylbutanoate and ethyl (2R,3R)-3,4-dibromo-2-methylbutanoate and ethyl (2S,3R)-3,4-dibromo-2-methylbutanoate and ethyl (2R,3S)-3,4-dibromo-2-methylbutanoate
EC Number:
700-225-0
Cas Number:
1160806-44-9
Molecular formula:
C7 H12 Br2 O2
IUPAC Name:
Reaction mass of ethyl (2S,3S)-3,4-dibromo-2-methylbutanoate and ethyl (2R,3R)-3,4-dibromo-2-methylbutanoate and ethyl (2S,3R)-3,4-dibromo-2-methylbutanoate and ethyl (2R,3S)-3,4-dibromo-2-methylbutanoate

Study design

Estimation method (if used):
PHOTOCHEMICAL REACTION WITH OH RADICALS
- Concentration of OH radicals: 500000
- Degradation rate constant: 0.00000000000253 cm³/molecule-sec
- Temperature for which rate constant was calculated: 25 °C
- Computer programme: SRC AOP v1.92, 02 Nov 2009
- Calculated t 1/2 is based on a 24 h day

Results and discussion

Dissipation half-life of parent compound
DT50:
6.33 d

Applicant's summary and conclusion