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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
partition coefficient
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Rationale for reliability: Calculated data, internationally accepted method; the software is mentioned in the guidance document “Guidance on information requirements and chemical safety assessment” Chapter R.7a: Endpoint specific guidance

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Report date:
2014

Materials and methods

GLP compliance:
no
Type of method:
other: calculation program
Partition coefficient type:
octanol-water

Test material

Constituent 1
Chemical structure
Reference substance name:
Chloromethyltrimethylsilane
EC Number:
219-058-5
EC Name:
Chloromethyltrimethylsilane
Cas Number:
2344-80-1
Molecular formula:
C4H11ClSi
IUPAC Name:
(chloromethyl)trimethylsilane
Test material form:
other: liquid

Results and discussion

Partition coefficient
Type:
log Pow
Partition coefficient:
2.97
Details on results:
The calculation of the octanol water partition coefficient (log Kow) was performed using KOWWIN v.1.68 (U.S. Environmental Protection Agency) on a personal computer running Windows 7. The struc-ture was entered into KOWWIN by SMILES notations. KOWWIN uses a "fragment constant" method-ology to predict log KOW. For a complete description of KOWWIN's methodology see W.M. Meylan and P.H. Howard, "Atom/Fragment Contribution Method for Estimating Octanol-Water Partition Coeffi-cients", Journal of Pharmaceutical Sciences, Vol. 84, No. 1, January 1995, p. 83 - 91.

Applicant's summary and conclusion