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Physical & Chemical properties

Partition coefficient

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
partition coefficient
Type of information:
(Q)SAR
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Scientifically acceptable method
Justification for type of information:
QSAR prediction: migrated from IUCLID 5.6
Principles of method if other than guideline:
log octanol-water partition coefficient (log KOW) estimation using an atom/fragment contribution method
GLP compliance:
no
Type of method:
other: calculation
Partition coefficient type:
octanol-water
Type:
log Pow
Partition coefficient:
1.71
Temp.:
20 °C
pH:
ca. 7

Result:

Log Kow(version 1.68 estimate): 1.71

SMILES : O=C(OCC(O)CO)CCCCCCC

CHEM : Octanoic acid, monoester with 1,2,3-propanetriol

MOL FOR: C11 H22 O4

MOL WT : 218.30

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

TYPE | NUM | LOGKOW FRAGMENT DESCRIPTION | COEFF | VALUE

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

Frag | 1 | -CH3 [aliphatic carbon] | 0.5473 | 0.5473

Frag | 8 | -CH2- [aliphatic carbon] | 0.4911 | 3.9288

Frag | 1 | -CH [aliphatic carbon] | 0.3614 | 0.3614

Frag | 2 | -OH [hydroxy, aliphatic attach] |-1.4086 | -2.8172

Frag | 1 | -C(=O)O [ester, aliphatic attach] |-0.9505 | -0.9505

Factor| 1 | Multi-alcohol correction | 0.4064 | 0.4064

Const | | Equation Constant | | 0.2290

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

Log Kow = 1.7052

Executive summary:

The log Octanol-Water Partition coefficient, log KOW = 1.71 was calculated with EPISuite.

Description of key information

Calculated with EPISuite, KOWWIN v1.68

Key value for chemical safety assessment

Log Kow (Log Pow):
1.71
at the temperature of:
25 °C

Additional information

Scientifically acceptable method