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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

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Physical & Chemical properties

Partition coefficient

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Reference
Endpoint:
partition coefficient
Type of information:
(Q)SAR
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Justification for type of information:
QSAR prediction: migrated from IUCLID 5.6
Qualifier:
no guideline followed
Principles of method if other than guideline:
According to column 2 of Annex VII of REACH, If the test cannot be performed (e.g. the substance does not dissolve in water or in octanol), a calculated value for log P as well as details of the calculation method shall be provided.
Details are shown below.
GLP compliance:
no
Type of method:
other: calculation
Partition coefficient type:
octanol-water
Type:
log Pow
Partition coefficient:
6.53
Remarks on result:
other: calculated with KOWWIN v1.68 (EPISUITE-USEPA)

 

                 Log Kow(version 1.68 estimate): 6.53

 

SMILES : CCCCC(CC)COCOCC(CCCC)CC

CHEM  :

MOL FOR: C17 H36 O2

MOL WT : 272.48

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

 TYPE | NUM |       LOGKOW FRAGMENT DESCRIPTION     | COEFF | VALUE

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

 Frag | 4  | -CH3   [aliphatic carbon]           | 0.5473 | 2.1892

 Frag | 11  | -CH2-  [aliphatic carbon]           | 0.4911 | 5.4021

 Frag | 2  | -CH    [aliphatic carbon]           | 0.3614 | 0.7228

 Frag | 2  | -O-    [oxygen, aliphatic attach]      |-1.2566 | -2.5132

 Factor| 1 | C-O-C-O-C structure correction         | 0.5036 | 0.5036

 Const |   | Equation Constant                  |      | 0.2290

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

                                           Log Kow  =  6.5335

Conclusions:
Log Kow of 2-ethylhexylal has been calculated at 6.53 using KOWWIN v1.68 (EPISUITE, USEPA)
Executive summary:

Log Kow of 2-ethylhexylal has been calculated at 6.53 using KOWWIN v1.68 (EPISUITE, USEPA)

Description of key information

Log Kow of 2-ethylhexylal was calculated as 6.53 with KOWWIN (v1.68), EPISUITE - USEPA.

Key value for chemical safety assessment

Log Kow (Log Pow):
6.53

Additional information