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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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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partition coefficient
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study according to OECD Guideline 117, limited information on the test item
according to guideline
OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
GLP compliance:
not specified
Type of method:
HPLC method
Partition coefficient type:
Analytical method:
high-performance liquid chromatography
log Pow
Partition coefficient:
25 °C
ca. 7
A logPow of 2.44 was determined in a study according to OECD Guideline 117.
Executive summary:
o-chlorobenzaldehyde showed a logPow of 2.44 at 25 °C in a study according to OECD Guideline 117.

Description of key information

log Pow: 2.44 at 25 °C

Key value for chemical safety assessment

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

Additional information

The log Pow of 2.44 was determined in a study according to OECD guideline 117 and is supported by another experimental value of 2.28 and a calculated value of 2.4 (all values at 25 °C).