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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Data source

Reference
Reference Type:
other: QSAR
Title:
Episuite 4.1
Author:
US EPA
Year:
2012
Bibliographic source:
http://www.epa.gov/oppt/exposure/pubs/episuitedl.htm

Materials and methods

Principles of method if other than guideline:
QSAR using molecular fragment method
Type of method:
other: QSAR
Partition coefficient type:
octanol-water

Test material

Constituent 1
Chemical structure
Reference substance name:
7-methylidenepentadecane
EC Number:
603-419-2
Cas Number:
13043-55-5
Molecular formula:
C16H32
IUPAC Name:
7-methylidenepentadecane

Results and discussion

Partition coefficient
Type:
log Pow
Partition coefficient:
ca. 8.12
Temp.:
20
pH:
7

Any other information on results incl. tables

                 Log Kow(version 1.68 estimate): 8.12

 

SMILES : CCCCCCC(=C)CCCCCCCC

CHEM  :

MOL FOR: C16 H32

MOL WT : 224.43

-------+-----+--------------------------------------------+--------+--------

 TYPE | NUM |       LOGKOW FRAGMENT DESCRIPTION     | COEFF | VALUE

-------+-----+--------------------------------------------+------ -+--------

 Frag | 2  | -CH3   [aliphatic carbon]           | 0.5473 | 1.0946

 Frag | 12  | -CH2-  [aliphatic carbon]           | 0.4911 | 5.8932

 Frag | 1  | =CH2   [olefinic carbon]            | 0.5184 | 0.5184

 Frag | 1  | =CH- or =C< [olefinic carbon]          | 0.3836 | 0.3836

 Const |   | Equation Constant                  |      | 0.2290

-------+-----+--------------------------------------------+--------+--------

 Log Kow  =  8.1188

Applicant's summary and conclusion