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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2013
Report date:
2013

Materials and methods

Model:
calculation according to Mackay, Level III
Calculation programme:
EPI Suite
Release year:
2 011
Media:
air - biota - sediment(s) - soil - water

Test material

Constituent 1
Chemical structure
Reference substance name:
2-ethyl-2-(((3,5,5-trimethylhexanoyl)oxy)methyl)propane-1,3-diyl bis(3,5,5-trimethylhexanoate)
EC Number:
613-848-7
Cas Number:
65870-94-2
Molecular formula:
C33H62O6
IUPAC Name:
2-ethyl-2-(((3,5,5-trimethylhexanoyl)oxy)methyl)propane-1,3-diyl bis(3,5,5-trimethylhexanoate)

Study design

Test substance input data:
SMILES : C(CC)(COC(=O)CC(C)CC(C)(C)(C))(COC(=O)CC(C)CC(C)(C)(C))(COC(=O)CC(C)C C(C)(C)(C))
CHEM : Hexanoic acid, 3,5,5-trimethyl-, 1,1'-[2-ethyl-2-[[(3,5,5-trimethyl-1 -oxohexyl)oxy]methyl]-1,3-propanediyl] ester
MOL FOR: C33 H62 O6
MOL WT : 554.86

Environmental properties:
Henry's LC : 4.45e-007 atm-m3/mole (Henrywin program)
Vapor Press : 3.86e-009 mm Hg (Mpbpwin program)
Liquid VP : 8.03e-008 mm Hg (super-cooled)
Melting Pt : 158 deg C (Mpbpwin program)
Log Kow : 11.6 (Kowwin program)
Soil Koc : 1.42e+007 (KOCWIN MCI method)

Results and discussion

Percent distribution in media

Air (%):
0.06
Water (%):
5.34
Soil (%):
94.1
Sediment (%):
0.54
Other distribution results:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 0.0603 11.2 1000
Water 5.34 4.32e+003 1000
Soil 94.1 8.64e+003 1000
Sediment 0.54 3.89e+004 0

Fugacity Reaction Advection Reaction Advection
(atm) (kg/hr) (kg/hr) (percent) (percent)
Air 3.61e-013 619 100 20.6 3.33
Water 1.95e-016 142 885 4.73 29.5
Soil 2.04e-015 1.25e+003 0 41.7 0
Sediment 5.27e-016 1.6 1.79 0.0532 0.0597

Persistence Time: 5.53e+003 hr
Reaction Time: 8.23e+003 hr
Advection Time: 1.68e+004 hr
Percent Reacted: 67.1
Percent Advected: 32.9

Half-Lives (hr), (based upon Biowin (Ultimate) and Aopwin):
Air: 11.18
Water: 4320
Soil: 8640
Sediment: 3.888e+004
Biowin estimate: 1.545 (recalcitrant)

Advection Times (hr):
Air: 100
Water: 1000
Sediment: 5e+004

Applicant's summary and conclusion

Conclusions:
The substance is predicted to partition mainly to soil (94.1%)
Executive summary:

The substance is predicted to partition mainly to soil (94.1%)